./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e4e522f7269f01a0f0108ec2341cf17a6d715eaf63b892b25236d9e51e23a874 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 18:02:12,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 18:02:12,253 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 18:02:12,263 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 18:02:12,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 18:02:12,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 18:02:12,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 18:02:12,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 18:02:12,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 18:02:12,294 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 18:02:12,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 18:02:12,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 18:02:12,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 18:02:12,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 18:02:12,303 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 18:02:12,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 18:02:12,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 18:02:12,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 18:02:12,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 18:02:12,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 18:02:12,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 18:02:12,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 18:02:12,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 18:02:12,305 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 18:02:12,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 18:02:12,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 18:02:12,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 18:02:12,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 18:02:12,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:02:12,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 18:02:12,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 18:02:12,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 18:02:12,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 18:02:12,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 18:02:12,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 18:02:12,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 18:02:12,308 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 18:02:12,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 18:02:12,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 18:02:12,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4e522f7269f01a0f0108ec2341cf17a6d715eaf63b892b25236d9e51e23a874 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 18:02:12,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 18:02:12,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 18:02:12,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 18:02:12,538 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 18:02:12,539 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 18:02:12,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2023-11-22 18:02:13,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 18:02:13,816 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 18:02:13,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2023-11-22 18:02:13,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a4b988e/dc6265f088ed4fef9c502b1efb17dad3/FLAG03547fa33 [2023-11-22 18:02:13,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22a4b988e/dc6265f088ed4fef9c502b1efb17dad3 [2023-11-22 18:02:13,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 18:02:13,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 18:02:13,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 18:02:13,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 18:02:13,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 18:02:13,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:02:13" (1/1) ... [2023-11-22 18:02:13,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284d85d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:13, skipping insertion in model container [2023-11-22 18:02:13,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:02:13" (1/1) ... [2023-11-22 18:02:13,941 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 18:02:14,481 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2023-11-22 18:02:14,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:02:14,522 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 18:02:14,634 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2023-11-22 18:02:14,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:02:14,657 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 18:02:14,658 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 18:02:14,663 INFO L206 MainTranslator]: Completed translation [2023-11-22 18:02:14,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14 WrapperNode [2023-11-22 18:02:14,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 18:02:14,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 18:02:14,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 18:02:14,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 18:02:14,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,768 INFO L138 Inliner]: procedures = 102, calls = 434, calls flagged for inlining = 49, calls inlined = 44, statements flattened = 1146 [2023-11-22 18:02:14,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 18:02:14,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 18:02:14,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 18:02:14,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 18:02:14,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,805 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,931 INFO L189 HeapSplitter]: Split 235 memory accesses to 15 slices as follows [2, 18, 4, 7, 4, 5, 155, 6, 8, 10, 3, 3, 2, 4, 4] [2023-11-22 18:02:14,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:14,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:15,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:15,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 18:02:15,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 18:02:15,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 18:02:15,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 18:02:15,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (1/1) ... [2023-11-22 18:02:15,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:02:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:02:15,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 18:02:15,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 18:02:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-22 18:02:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-22 18:02:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-22 18:02:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-22 18:02:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-22 18:02:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-22 18:02:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-22 18:02:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-22 18:02:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-22 18:02:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-22 18:02:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-22 18:02:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-22 18:02:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-22 18:02:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-22 18:02:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-22 18:02:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-22 18:02:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-22 18:02:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-22 18:02:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-22 18:02:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-22 18:02:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-22 18:02:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-22 18:02:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-22 18:02:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-22 18:02:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-22 18:02:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-22 18:02:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-22 18:02:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-22 18:02:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-22 18:02:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-22 18:02:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-22 18:02:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 18:02:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-22 18:02:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-22 18:02:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-22 18:02:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-22 18:02:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 18:02:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 18:02:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 18:02:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 18:02:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 18:02:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-22 18:02:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-22 18:02:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-22 18:02:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-22 18:02:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-22 18:02:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-22 18:02:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-22 18:02:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 18:02:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 18:02:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2023-11-22 18:02:15,161 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2023-11-22 18:02:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 18:02:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 18:02:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2023-11-22 18:02:15,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2023-11-22 18:02:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 18:02:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-22 18:02:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-22 18:02:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-22 18:02:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2023-11-22 18:02:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2023-11-22 18:02:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 18:02:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 18:02:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-22 18:02:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-22 18:02:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-22 18:02:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-22 18:02:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-22 18:02:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-22 18:02:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-22 18:02:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-22 18:02:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-22 18:02:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-22 18:02:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-22 18:02:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-22 18:02:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-22 18:02:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-22 18:02:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-22 18:02:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2023-11-22 18:02:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2023-11-22 18:02:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-22 18:02:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-22 18:02:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 18:02:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-22 18:02:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-22 18:02:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-22 18:02:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-22 18:02:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-22 18:02:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-22 18:02:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-22 18:02:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-22 18:02:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-22 18:02:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-22 18:02:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-22 18:02:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-22 18:02:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-22 18:02:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-22 18:02:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-22 18:02:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-11-22 18:02:15,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-11-22 18:02:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-11-22 18:02:15,174 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-11-22 18:02:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-22 18:02:15,174 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-22 18:02:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-22 18:02:15,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-22 18:02:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-22 18:02:15,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-22 18:02:15,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 18:02:15,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 18:02:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 18:02:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 18:02:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 18:02:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 18:02:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 18:02:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 18:02:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-22 18:02:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-22 18:02:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-22 18:02:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-22 18:02:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-22 18:02:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-22 18:02:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-22 18:02:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-22 18:02:15,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-22 18:02:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2023-11-22 18:02:15,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2023-11-22 18:02:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-22 18:02:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-22 18:02:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-22 18:02:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-22 18:02:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-22 18:02:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-22 18:02:15,190 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-22 18:02:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 18:02:15,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 18:02:15,475 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 18:02:15,479 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 18:02:16,158 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 18:02:16,253 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 18:02:16,253 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 18:02:16,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:02:16 BoogieIcfgContainer [2023-11-22 18:02:16,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 18:02:16,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 18:02:16,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 18:02:16,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 18:02:16,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:02:13" (1/3) ... [2023-11-22 18:02:16,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c98e844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:02:16, skipping insertion in model container [2023-11-22 18:02:16,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:14" (2/3) ... [2023-11-22 18:02:16,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c98e844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:02:16, skipping insertion in model container [2023-11-22 18:02:16,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:02:16" (3/3) ... [2023-11-22 18:02:16,262 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2023-11-22 18:02:16,275 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 18:02:16,275 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 18:02:16,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 18:02:16,317 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;@143f005a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 18:02:16,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 18:02:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 165 states have (on average 1.4) internal successors, (231), 170 states have internal predecessors, (231), 54 states have call successors, (54), 18 states have call predecessors, (54), 18 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-22 18:02:16,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-22 18:02:16,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:16,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:16,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:16,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:16,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1376610380, now seen corresponding path program 1 times [2023-11-22 18:02:16,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:16,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848392879] [2023-11-22 18:02:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:16,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:16,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:16,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:16,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 18:02:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 18:02:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 18:02:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-22 18:02:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 18:02:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-22 18:02:17,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848392879] [2023-11-22 18:02:17,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848392879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:17,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:17,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:17,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117525309] [2023-11-22 18:02:17,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:17,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:17,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:17,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:17,311 INFO L87 Difference]: Start difference. First operand has 239 states, 165 states have (on average 1.4) internal successors, (231), 170 states have internal predecessors, (231), 54 states have call successors, (54), 18 states have call predecessors, (54), 18 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 18:02:19,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:19,938 INFO L93 Difference]: Finished difference Result 552 states and 806 transitions. [2023-11-22 18:02:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:02:19,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2023-11-22 18:02:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:19,949 INFO L225 Difference]: With dead ends: 552 [2023-11-22 18:02:19,949 INFO L226 Difference]: Without dead ends: 303 [2023-11-22 18:02:19,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:19,956 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 197 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:19,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 973 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-22 18:02:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-22 18:02:20,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 233. [2023-11-22 18:02:20,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 163 states have (on average 1.3680981595092025) internal successors, (223), 166 states have internal predecessors, (223), 52 states have call successors, (52), 18 states have call predecessors, (52), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-22 18:02:20,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 325 transitions. [2023-11-22 18:02:20,084 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 325 transitions. Word has length 99 [2023-11-22 18:02:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:20,084 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 325 transitions. [2023-11-22 18:02:20,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 18:02:20,087 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 325 transitions. [2023-11-22 18:02:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:02:20,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:20,092 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:20,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 18:02:20,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:20,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1901770316, now seen corresponding path program 1 times [2023-11-22 18:02:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:20,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978217685] [2023-11-22 18:02:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:20,638 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-22 18:02:20,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:20,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978217685] [2023-11-22 18:02:20,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978217685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:20,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:20,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:02:20,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484110010] [2023-11-22 18:02:20,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:20,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:02:20,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:20,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:02:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:02:20,642 INFO L87 Difference]: Start difference. First operand 233 states and 325 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:22,074 INFO L93 Difference]: Finished difference Result 486 states and 684 transitions. [2023-11-22 18:02:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:02:22,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-11-22 18:02:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:22,077 INFO L225 Difference]: With dead ends: 486 [2023-11-22 18:02:22,077 INFO L226 Difference]: Without dead ends: 257 [2023-11-22 18:02:22,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:22,079 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 138 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:22,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 599 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-22 18:02:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-22 18:02:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 234. [2023-11-22 18:02:22,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 164 states have (on average 1.3658536585365855) internal successors, (224), 167 states have internal predecessors, (224), 52 states have call successors, (52), 18 states have call predecessors, (52), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-22 18:02:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 326 transitions. [2023-11-22 18:02:22,096 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 326 transitions. Word has length 105 [2023-11-22 18:02:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:22,097 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 326 transitions. [2023-11-22 18:02:22,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 326 transitions. [2023-11-22 18:02:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:02:22,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:22,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:22,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 18:02:22,100 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:22,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1956163214, now seen corresponding path program 1 times [2023-11-22 18:02:22,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:22,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365256218] [2023-11-22 18:02:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:22,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-22 18:02:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:22,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365256218] [2023-11-22 18:02:22,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365256218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:22,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:22,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:22,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336644119] [2023-11-22 18:02:22,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:22,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:22,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:22,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:22,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:22,574 INFO L87 Difference]: Start difference. First operand 234 states and 326 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:24,748 INFO L93 Difference]: Finished difference Result 561 states and 802 transitions. [2023-11-22 18:02:24,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:02:24,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-11-22 18:02:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:24,751 INFO L225 Difference]: With dead ends: 561 [2023-11-22 18:02:24,751 INFO L226 Difference]: Without dead ends: 331 [2023-11-22 18:02:24,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:24,752 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 207 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:24,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1014 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-22 18:02:24,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-22 18:02:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 236. [2023-11-22 18:02:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 166 states have (on average 1.3614457831325302) internal successors, (226), 169 states have internal predecessors, (226), 52 states have call successors, (52), 18 states have call predecessors, (52), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-22 18:02:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 328 transitions. [2023-11-22 18:02:24,770 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 328 transitions. Word has length 105 [2023-11-22 18:02:24,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:24,771 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 328 transitions. [2023-11-22 18:02:24,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:24,771 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 328 transitions. [2023-11-22 18:02:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:02:24,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:24,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:24,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 18:02:24,773 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:24,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash -32935180, now seen corresponding path program 1 times [2023-11-22 18:02:24,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:24,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913331859] [2023-11-22 18:02:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:24,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:24,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-22 18:02:25,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:25,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913331859] [2023-11-22 18:02:25,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913331859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:25,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:25,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:02:25,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864148500] [2023-11-22 18:02:25,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:25,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:02:25,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:25,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:02:25,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:02:25,103 INFO L87 Difference]: Start difference. First operand 236 states and 328 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:26,526 INFO L93 Difference]: Finished difference Result 492 states and 690 transitions. [2023-11-22 18:02:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:02:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-11-22 18:02:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:26,529 INFO L225 Difference]: With dead ends: 492 [2023-11-22 18:02:26,529 INFO L226 Difference]: Without dead ends: 260 [2023-11-22 18:02:26,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:26,530 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 138 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:26,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 599 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-22 18:02:26,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-22 18:02:26,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 237. [2023-11-22 18:02:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 170 states have internal predecessors, (227), 52 states have call successors, (52), 18 states have call predecessors, (52), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-22 18:02:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 329 transitions. [2023-11-22 18:02:26,546 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 329 transitions. Word has length 105 [2023-11-22 18:02:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:26,546 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 329 transitions. [2023-11-22 18:02:26,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 329 transitions. [2023-11-22 18:02:26,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:02:26,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:26,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:26,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 18:02:26,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:26,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:26,549 INFO L85 PathProgramCache]: Analyzing trace with hash -542408270, now seen corresponding path program 1 times [2023-11-22 18:02:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:26,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731157869] [2023-11-22 18:02:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:26,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:26,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:27,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-22 18:02:27,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:27,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731157869] [2023-11-22 18:02:27,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731157869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:27,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:27,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:27,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200919700] [2023-11-22 18:02:27,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:27,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:27,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:27,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:27,090 INFO L87 Difference]: Start difference. First operand 237 states and 329 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:30,431 INFO L93 Difference]: Finished difference Result 766 states and 1085 transitions. [2023-11-22 18:02:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 18:02:30,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-11-22 18:02:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:30,435 INFO L225 Difference]: With dead ends: 766 [2023-11-22 18:02:30,435 INFO L226 Difference]: Without dead ends: 762 [2023-11-22 18:02:30,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-22 18:02:30,436 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 945 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:30,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 781 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-22 18:02:30,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-11-22 18:02:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 693. [2023-11-22 18:02:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 491 states have (on average 1.3584521384928716) internal successors, (667), 498 states have internal predecessors, (667), 150 states have call successors, (150), 52 states have call predecessors, (150), 51 states have return successors, (152), 148 states have call predecessors, (152), 148 states have call successors, (152) [2023-11-22 18:02:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 969 transitions. [2023-11-22 18:02:30,511 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 969 transitions. Word has length 105 [2023-11-22 18:02:30,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:30,512 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 969 transitions. [2023-11-22 18:02:30,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-22 18:02:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 969 transitions. [2023-11-22 18:02:30,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-22 18:02:30,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:30,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:30,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 18:02:30,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:30,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:30,516 INFO L85 PathProgramCache]: Analyzing trace with hash -594832168, now seen corresponding path program 1 times [2023-11-22 18:02:30,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:30,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209383233] [2023-11-22 18:02:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:30,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-22 18:02:30,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:30,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209383233] [2023-11-22 18:02:30,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209383233] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:02:30,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944077649] [2023-11-22 18:02:30,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:30,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:02:30,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:02:30,940 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) [2023-11-22 18:02:30,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 18:02:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:31,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 18:02:31,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:02:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-22 18:02:31,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:02:31,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944077649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:31,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:02:31,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-22 18:02:31,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047592026] [2023-11-22 18:02:31,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:31,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:02:31,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:31,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:02:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:02:31,490 INFO L87 Difference]: Start difference. First operand 693 states and 969 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-22 18:02:31,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:31,866 INFO L93 Difference]: Finished difference Result 1384 states and 1937 transitions. [2023-11-22 18:02:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:02:31,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 113 [2023-11-22 18:02:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:31,871 INFO L225 Difference]: With dead ends: 1384 [2023-11-22 18:02:31,871 INFO L226 Difference]: Without dead ends: 1151 [2023-11-22 18:02:31,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:02:31,872 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 311 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:31,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 804 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-22 18:02:31,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2023-11-22 18:02:31,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 921. [2023-11-22 18:02:31,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 653 states have (on average 1.356814701378254) internal successors, (886), 662 states have internal predecessors, (886), 199 states have call successors, (199), 69 states have call predecessors, (199), 68 states have return successors, (201), 197 states have call predecessors, (201), 197 states have call successors, (201) [2023-11-22 18:02:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1286 transitions. [2023-11-22 18:02:31,935 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1286 transitions. Word has length 113 [2023-11-22 18:02:31,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:31,935 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1286 transitions. [2023-11-22 18:02:31,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-22 18:02:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1286 transitions. [2023-11-22 18:02:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:02:31,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:31,937 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:31,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-22 18:02:32,151 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,SelfDestructingSolverStorable5 [2023-11-22 18:02:32,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:32,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:32,152 INFO L85 PathProgramCache]: Analyzing trace with hash -584614501, now seen corresponding path program 1 times [2023-11-22 18:02:32,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:32,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364066185] [2023-11-22 18:02:32,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:32,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:02:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-22 18:02:32,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364066185] [2023-11-22 18:02:32,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364066185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:32,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:32,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:32,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593561872] [2023-11-22 18:02:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:32,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:32,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:32,743 INFO L87 Difference]: Start difference. First operand 921 states and 1286 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:35,419 INFO L93 Difference]: Finished difference Result 2430 states and 3513 transitions. [2023-11-22 18:02:35,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:02:35,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-11-22 18:02:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:35,426 INFO L225 Difference]: With dead ends: 2430 [2023-11-22 18:02:35,426 INFO L226 Difference]: Without dead ends: 1513 [2023-11-22 18:02:35,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:35,430 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 256 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:35,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1203 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-22 18:02:35,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2023-11-22 18:02:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 929. [2023-11-22 18:02:35,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 661 states have (on average 1.3524962178517397) internal successors, (894), 670 states have internal predecessors, (894), 199 states have call successors, (199), 69 states have call predecessors, (199), 68 states have return successors, (201), 197 states have call predecessors, (201), 197 states have call successors, (201) [2023-11-22 18:02:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1294 transitions. [2023-11-22 18:02:35,513 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1294 transitions. Word has length 150 [2023-11-22 18:02:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:35,514 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1294 transitions. [2023-11-22 18:02:35,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1294 transitions. [2023-11-22 18:02:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:02:35,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:35,517 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:35,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 18:02:35,518 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:35,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:35,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1864985629, now seen corresponding path program 1 times [2023-11-22 18:02:35,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:35,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948360291] [2023-11-22 18:02:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:35,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:02:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-22 18:02:35,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:35,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948360291] [2023-11-22 18:02:35,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948360291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:35,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:35,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:02:35,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144362988] [2023-11-22 18:02:35,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:35,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:02:35,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:02:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:02:35,893 INFO L87 Difference]: Start difference. First operand 929 states and 1294 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:37,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:37,377 INFO L93 Difference]: Finished difference Result 1950 states and 2739 transitions. [2023-11-22 18:02:37,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:02:37,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-11-22 18:02:37,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:37,381 INFO L225 Difference]: With dead ends: 1950 [2023-11-22 18:02:37,381 INFO L226 Difference]: Without dead ends: 1025 [2023-11-22 18:02:37,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:37,384 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 138 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:37,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 599 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-22 18:02:37,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-22 18:02:37,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 933. [2023-11-22 18:02:37,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 665 states have (on average 1.350375939849624) internal successors, (898), 674 states have internal predecessors, (898), 199 states have call successors, (199), 69 states have call predecessors, (199), 68 states have return successors, (201), 197 states have call predecessors, (201), 197 states have call successors, (201) [2023-11-22 18:02:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1298 transitions. [2023-11-22 18:02:37,445 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1298 transitions. Word has length 150 [2023-11-22 18:02:37,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:37,445 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1298 transitions. [2023-11-22 18:02:37,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1298 transitions. [2023-11-22 18:02:37,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:02:37,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:37,447 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:37,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 18:02:37,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:37,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:37,448 INFO L85 PathProgramCache]: Analyzing trace with hash 493178331, now seen corresponding path program 1 times [2023-11-22 18:02:37,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:37,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145758196] [2023-11-22 18:02:37,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:37,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:02:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-22 18:02:37,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:37,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145758196] [2023-11-22 18:02:37,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145758196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:37,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:37,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:37,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215278628] [2023-11-22 18:02:37,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:37,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:37,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:37,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:37,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:37,864 INFO L87 Difference]: Start difference. First operand 933 states and 1298 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:40,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:40,198 INFO L93 Difference]: Finished difference Result 2906 states and 4247 transitions. [2023-11-22 18:02:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:02:40,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-11-22 18:02:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:40,207 INFO L225 Difference]: With dead ends: 2906 [2023-11-22 18:02:40,207 INFO L226 Difference]: Without dead ends: 1977 [2023-11-22 18:02:40,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:40,211 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 405 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:40,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1403 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-22 18:02:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2023-11-22 18:02:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 941. [2023-11-22 18:02:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 673 states have (on average 1.3462109955423478) internal successors, (906), 682 states have internal predecessors, (906), 199 states have call successors, (199), 69 states have call predecessors, (199), 68 states have return successors, (201), 197 states have call predecessors, (201), 197 states have call successors, (201) [2023-11-22 18:02:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1306 transitions. [2023-11-22 18:02:40,370 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1306 transitions. Word has length 150 [2023-11-22 18:02:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:40,370 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1306 transitions. [2023-11-22 18:02:40,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1306 transitions. [2023-11-22 18:02:40,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-22 18:02:40,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:40,372 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:40,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 18:02:40,373 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:40,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash 79029050, now seen corresponding path program 1 times [2023-11-22 18:02:40,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:40,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522509622] [2023-11-22 18:02:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:40,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-22 18:02:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-22 18:02:40,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:40,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522509622] [2023-11-22 18:02:40,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522509622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:40,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:40,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:40,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350860976] [2023-11-22 18:02:40,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:40,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:40,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:40,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:40,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:40,835 INFO L87 Difference]: Start difference. First operand 941 states and 1306 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:43,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:43,581 INFO L93 Difference]: Finished difference Result 3090 states and 4533 transitions. [2023-11-22 18:02:43,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:02:43,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2023-11-22 18:02:43,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:43,591 INFO L225 Difference]: With dead ends: 3090 [2023-11-22 18:02:43,591 INFO L226 Difference]: Without dead ends: 2153 [2023-11-22 18:02:43,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:43,594 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 477 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:43,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1512 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-22 18:02:43,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2023-11-22 18:02:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 949. [2023-11-22 18:02:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 681 states have (on average 1.342143906020558) internal successors, (914), 690 states have internal predecessors, (914), 199 states have call successors, (199), 69 states have call predecessors, (199), 68 states have return successors, (201), 197 states have call predecessors, (201), 197 states have call successors, (201) [2023-11-22 18:02:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1314 transitions. [2023-11-22 18:02:43,683 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1314 transitions. Word has length 151 [2023-11-22 18:02:43,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:43,684 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1314 transitions. [2023-11-22 18:02:43,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1314 transitions. [2023-11-22 18:02:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-22 18:02:43,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:43,686 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:43,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-22 18:02:43,686 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:43,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:43,686 INFO L85 PathProgramCache]: Analyzing trace with hash 258983410, now seen corresponding path program 1 times [2023-11-22 18:02:43,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:43,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112529822] [2023-11-22 18:02:43,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:43,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-22 18:02:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-22 18:02:44,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:44,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112529822] [2023-11-22 18:02:44,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112529822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:44,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:44,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:44,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570112446] [2023-11-22 18:02:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:44,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:44,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:44,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:44,226 INFO L87 Difference]: Start difference. First operand 949 states and 1314 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:46,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:46,106 INFO L93 Difference]: Finished difference Result 2278 states and 3223 transitions. [2023-11-22 18:02:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:02:46,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2023-11-22 18:02:46,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:46,125 INFO L225 Difference]: With dead ends: 2278 [2023-11-22 18:02:46,125 INFO L226 Difference]: Without dead ends: 1333 [2023-11-22 18:02:46,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:46,127 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 227 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:46,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 992 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-22 18:02:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-11-22 18:02:46,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1012. [2023-11-22 18:02:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 736 states have (on average 1.346467391304348) internal successors, (991), 745 states have internal predecessors, (991), 207 states have call successors, (207), 69 states have call predecessors, (207), 68 states have return successors, (209), 205 states have call predecessors, (209), 205 states have call successors, (209) [2023-11-22 18:02:46,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1407 transitions. [2023-11-22 18:02:46,225 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1407 transitions. Word has length 151 [2023-11-22 18:02:46,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:46,228 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1407 transitions. [2023-11-22 18:02:46,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-22 18:02:46,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1407 transitions. [2023-11-22 18:02:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-22 18:02:46,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:46,229 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:46,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-22 18:02:46,230 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:46,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:46,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1845204848, now seen corresponding path program 1 times [2023-11-22 18:02:46,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:46,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670258303] [2023-11-22 18:02:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:46,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:02:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:46,670 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-22 18:02:46,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:46,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670258303] [2023-11-22 18:02:46,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670258303] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:02:46,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658294468] [2023-11-22 18:02:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:46,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:02:46,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:02:46,672 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) [2023-11-22 18:02:46,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 18:02:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:47,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 18:02:47,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:02:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-22 18:02:47,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:02:47,423 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-22 18:02:47,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658294468] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:02:47,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:02:47,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2023-11-22 18:02:47,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290362842] [2023-11-22 18:02:47,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:02:47,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 18:02:47,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:47,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 18:02:47,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:47,425 INFO L87 Difference]: Start difference. First operand 1012 states and 1407 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-22 18:02:49,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:49,456 INFO L93 Difference]: Finished difference Result 2538 states and 3631 transitions. [2023-11-22 18:02:49,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:02:49,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 152 [2023-11-22 18:02:49,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:49,462 INFO L225 Difference]: With dead ends: 2538 [2023-11-22 18:02:49,463 INFO L226 Difference]: Without dead ends: 1530 [2023-11-22 18:02:49,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:02:49,466 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 208 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:49,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 989 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 18:02:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2023-11-22 18:02:49,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1316. [2023-11-22 18:02:49,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 992 states have (on average 1.3538306451612903) internal successors, (1343), 1001 states have internal predecessors, (1343), 255 states have call successors, (255), 69 states have call predecessors, (255), 68 states have return successors, (257), 253 states have call predecessors, (257), 253 states have call successors, (257) [2023-11-22 18:02:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1855 transitions. [2023-11-22 18:02:49,558 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1855 transitions. Word has length 152 [2023-11-22 18:02:49,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:49,559 INFO L495 AbstractCegarLoop]: Abstraction has 1316 states and 1855 transitions. [2023-11-22 18:02:49,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 5 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-22 18:02:49,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1855 transitions. [2023-11-22 18:02:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-22 18:02:49,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:49,562 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:49,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 18:02:49,776 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,SelfDestructingSolverStorable11 [2023-11-22 18:02:49,776 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:49,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:49,777 INFO L85 PathProgramCache]: Analyzing trace with hash -831682783, now seen corresponding path program 1 times [2023-11-22 18:02:49,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:49,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127687351] [2023-11-22 18:02:49,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:49,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:49,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:49,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:02:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 18:02:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-22 18:02:50,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:50,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127687351] [2023-11-22 18:02:50,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127687351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:50,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:50,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:02:50,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774801630] [2023-11-22 18:02:50,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:50,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:02:50,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:50,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:02:50,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:02:50,313 INFO L87 Difference]: Start difference. First operand 1316 states and 1855 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:02:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:53,398 INFO L93 Difference]: Finished difference Result 2063 states and 2947 transitions. [2023-11-22 18:02:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:02:53,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2023-11-22 18:02:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:53,403 INFO L225 Difference]: With dead ends: 2063 [2023-11-22 18:02:53,403 INFO L226 Difference]: Without dead ends: 1057 [2023-11-22 18:02:53,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:02:53,406 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 396 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:53,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 1012 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-22 18:02:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-11-22 18:02:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 983. [2023-11-22 18:02:53,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 739 states have (on average 1.3355886332882274) internal successors, (987), 746 states have internal predecessors, (987), 192 states have call successors, (192), 52 states have call predecessors, (192), 51 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2023-11-22 18:02:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1371 transitions. [2023-11-22 18:02:53,503 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1371 transitions. Word has length 160 [2023-11-22 18:02:53,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:53,503 INFO L495 AbstractCegarLoop]: Abstraction has 983 states and 1371 transitions. [2023-11-22 18:02:53,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:02:53,503 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1371 transitions. [2023-11-22 18:02:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-22 18:02:53,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:53,506 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:53,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-22 18:02:53,506 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:53,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash -611749994, now seen corresponding path program 1 times [2023-11-22 18:02:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:53,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135918293] [2023-11-22 18:02:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:53,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:02:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 18:02:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-22 18:02:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-22 18:02:53,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135918293] [2023-11-22 18:02:53,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135918293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:53,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:53,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493641433] [2023-11-22 18:02:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:53,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:53,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:53,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:53,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:53,961 INFO L87 Difference]: Start difference. First operand 983 states and 1371 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:02:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:55,861 INFO L93 Difference]: Finished difference Result 2634 states and 3786 transitions. [2023-11-22 18:02:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:02:55,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 180 [2023-11-22 18:02:55,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:55,871 INFO L225 Difference]: With dead ends: 2634 [2023-11-22 18:02:55,871 INFO L226 Difference]: Without dead ends: 1655 [2023-11-22 18:02:55,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:02:55,873 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 304 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:55,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1294 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-22 18:02:55,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2023-11-22 18:02:55,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 989. [2023-11-22 18:02:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 745 states have (on average 1.3328859060402685) internal successors, (993), 752 states have internal predecessors, (993), 192 states have call successors, (192), 52 states have call predecessors, (192), 51 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2023-11-22 18:02:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1377 transitions. [2023-11-22 18:02:55,944 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1377 transitions. Word has length 180 [2023-11-22 18:02:55,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:55,944 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1377 transitions. [2023-11-22 18:02:55,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-22 18:02:55,944 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1377 transitions. [2023-11-22 18:02:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-22 18:02:55,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:55,947 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:55,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-22 18:02:55,947 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:55,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1212147252, now seen corresponding path program 1 times [2023-11-22 18:02:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:55,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903849287] [2023-11-22 18:02:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:02:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 18:02:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 18:02:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-22 18:02:56,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:56,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903849287] [2023-11-22 18:02:56,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903849287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:56,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:56,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:02:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259702720] [2023-11-22 18:02:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:56,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:02:56,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:56,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:02:56,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:02:56,377 INFO L87 Difference]: Start difference. First operand 989 states and 1377 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-22 18:02:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:58,705 INFO L93 Difference]: Finished difference Result 1899 states and 2651 transitions. [2023-11-22 18:02:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:02:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 190 [2023-11-22 18:02:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:58,709 INFO L225 Difference]: With dead ends: 1899 [2023-11-22 18:02:58,709 INFO L226 Difference]: Without dead ends: 914 [2023-11-22 18:02:58,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:02:58,711 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 470 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:58,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 600 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 18:02:58,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-11-22 18:02:58,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 843. [2023-11-22 18:02:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 619 states have (on average 1.310177705977383) internal successors, (811), 626 states have internal predecessors, (811), 172 states have call successors, (172), 52 states have call predecessors, (172), 51 states have return successors, (172), 170 states have call predecessors, (172), 170 states have call successors, (172) [2023-11-22 18:02:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1155 transitions. [2023-11-22 18:02:58,781 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1155 transitions. Word has length 190 [2023-11-22 18:02:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:58,782 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1155 transitions. [2023-11-22 18:02:58,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-22 18:02:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1155 transitions. [2023-11-22 18:02:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-22 18:02:58,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:58,785 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:58,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-22 18:02:58,785 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:58,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash 836152208, now seen corresponding path program 2 times [2023-11-22 18:02:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:58,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552018871] [2023-11-22 18:02:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:02:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:02:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:02:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:02:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:02:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:02:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:02:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:02:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:02:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:02:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:02:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:02:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:02:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:02:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:02:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 18:02:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 18:02:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:02:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-22 18:02:59,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:59,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552018871] [2023-11-22 18:02:59,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552018871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:59,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:59,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 18:02:59,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920596476] [2023-11-22 18:02:59,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:59,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 18:02:59,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:59,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 18:02:59,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:02:59,424 INFO L87 Difference]: Start difference. First operand 843 states and 1155 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 5 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 18:03:01,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:03:01,981 INFO L93 Difference]: Finished difference Result 1214 states and 1697 transitions. [2023-11-22 18:03:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 18:03:01,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 5 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 190 [2023-11-22 18:03:01,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:03:01,982 INFO L225 Difference]: With dead ends: 1214 [2023-11-22 18:03:01,982 INFO L226 Difference]: Without dead ends: 0 [2023-11-22 18:03:01,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-22 18:03:01,984 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 968 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:03:01,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 610 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 18:03:01,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-22 18:03:01,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-22 18:03:01,986 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) [2023-11-22 18:03:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-22 18:03:01,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2023-11-22 18:03:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:03:01,987 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-22 18:03:01,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 5 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 18:03:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-22 18:03:01,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-22 18:03:01,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-22 18:03:01,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 18:03:01,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-22 18:03:19,088 WARN L293 SmtUtils]: Spent 16.50s on a formula simplification. DAG size of input: 197 DAG size of output: 162 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:03:34,816 WARN L293 SmtUtils]: Spent 15.73s on a formula simplification. DAG size of input: 199 DAG size of output: 163 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:03:50,280 WARN L293 SmtUtils]: Spent 15.46s on a formula simplification. DAG size of input: 182 DAG size of output: 149 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:04:06,801 WARN L293 SmtUtils]: Spent 16.08s on a formula simplification. DAG size of input: 197 DAG size of output: 162 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:04:22,616 WARN L293 SmtUtils]: Spent 15.81s on a formula simplification. DAG size of input: 199 DAG size of output: 163 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:04:37,908 WARN L293 SmtUtils]: Spent 15.29s on a formula simplification. DAG size of input: 182 DAG size of output: 149 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:04:54,635 WARN L293 SmtUtils]: Spent 16.23s on a formula simplification. DAG size of input: 197 DAG size of output: 162 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:05:10,353 WARN L293 SmtUtils]: Spent 15.72s on a formula simplification. DAG size of input: 199 DAG size of output: 163 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:05:25,763 WARN L293 SmtUtils]: Spent 15.41s on a formula simplification. DAG size of input: 182 DAG size of output: 149 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:05:43,724 WARN L293 SmtUtils]: Spent 16.22s on a formula simplification. DAG size of input: 197 DAG size of output: 162 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:05:59,468 WARN L293 SmtUtils]: Spent 15.74s on a formula simplification. DAG size of input: 199 DAG size of output: 163 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:06:14,877 WARN L293 SmtUtils]: Spent 15.41s on a formula simplification. DAG size of input: 182 DAG size of output: 149 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-22 18:06:31,746 WARN L293 SmtUtils]: Spent 16.21s on a formula simplification. DAG size of input: 197 DAG size of output: 162 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Killed by 15