./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 --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 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 18:38:49,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 18:38:49,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 18:38:49,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 18:38:49,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 18:38:49,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 18:38:49,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 18:38:49,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 18:38:49,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 18:38:49,662 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 18:38:49,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 18:38:49,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 18:38:49,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 18:38:49,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 18:38:49,664 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 18:38:49,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 18:38:49,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 18:38:49,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 18:38:49,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 18:38:49,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 18:38:49,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 18:38:49,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 18:38:49,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 18:38:49,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 18:38:49,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 18:38:49,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 18:38:49,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 18:38:49,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 18:38:49,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:38:49,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 18:38:49,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 18:38:49,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 18:38:49,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 18:38:49,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 18:38:49,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 18:38:49,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 18:38:49,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 18:38:49,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 18:38:49,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 18:38:49,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4e522f7269f01a0f0108ec2341cf17a6d715eaf63b892b25236d9e51e23a874 [2023-11-22 18:38:49,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 18:38:49,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 18:38:49,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 18:38:49,898 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 18:38:49,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 18:38:49,899 INFO L431 ainManager$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 18:38:50,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 18:38:51,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 18:38:51,264 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 18:38:51,280 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684063b91/a68bde873be2470fa35de27732b5acf0/FLAG7b189fb08 [2023-11-22 18:38:51,530 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684063b91/a68bde873be2470fa35de27732b5acf0 [2023-11-22 18:38:51,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 18:38:51,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 18:38:51,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 18:38:51,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 18:38:51,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 18:38:51,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:38:51" (1/1) ... [2023-11-22 18:38:51,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f21a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:51, skipping insertion in model container [2023-11-22 18:38:51,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:38:51" (1/1) ... [2023-11-22 18:38:51,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 18:38:52,079 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 18:38:52,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:38:52,121 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 18:38:52,274 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 18:38:52,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:38:52,306 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 18:38:52,306 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 18:38:52,312 INFO L206 MainTranslator]: Completed translation [2023-11-22 18:38:52,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52 WrapperNode [2023-11-22 18:38:52,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 18:38:52,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 18:38:52,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 18:38:52,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 18:38:52,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,383 INFO L138 Inliner]: procedures = 102, calls = 434, calls flagged for inlining = 49, calls inlined = 44, statements flattened = 1146 [2023-11-22 18:38:52,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 18:38:52,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 18:38:52,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 18:38:52,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 18:38:52,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,400 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,482 INFO L189 HeapSplitter]: Split 235 memory accesses to 15 slices as follows [2, 10, 8, 4, 7, 4, 5, 6, 3, 3, 18, 2, 4, 4, 155] [2023-11-22 18:38:52,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 18:38:52,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 18:38:52,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 18:38:52,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 18:38:52,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (1/1) ... [2023-11-22 18:38:52,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:38:52,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:38:52,613 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 18:38:52,620 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 18:38:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-22 18:38:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-22 18:38:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-22 18:38:52,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-22 18:38:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-22 18:38:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-22 18:38:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-22 18:38:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-22 18:38:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-22 18:38:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-22 18:38:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-22 18:38:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-22 18:38:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-22 18:38:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-22 18:38:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-22 18:38:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-22 18:38:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-22 18:38:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-22 18:38:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-22 18:38:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-22 18:38:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 18:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-22 18:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-22 18:38:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 18:38:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 18:38:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 18:38:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 18:38:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 18:38:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 18:38:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 18:38:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-22 18:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-22 18:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-22 18:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-22 18:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-22 18:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 18:38:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 18:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2023-11-22 18:38:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2023-11-22 18:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 18:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2023-11-22 18:38:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-22 18:38:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-22 18:38:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-22 18:38:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-22 18:38:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-22 18:38:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 18:38:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-22 18:38:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-22 18:38:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2023-11-22 18:38:52,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2023-11-22 18:38:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 18:38:52,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-22 18:38:52,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-22 18:38:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-22 18:38:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-22 18:38:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-22 18:38:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-22 18:38:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-22 18:38:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-22 18:38:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-22 18:38:52,667 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2023-11-22 18:38:52,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-22 18:38:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-22 18:38:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-22 18:38:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-22 18:38:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-22 18:38:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-11-22 18:38:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-11-22 18:38:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-11-22 18:38:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-11-22 18:38:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-22 18:38:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-22 18:38:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-22 18:38:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-22 18:38:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-22 18:38:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-22 18:38:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 18:38:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 18:38:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 18:38:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 18:38:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 18:38:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-22 18:38:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-22 18:38:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2023-11-22 18:38:52,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-22 18:38:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-22 18:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-22 18:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-22 18:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-22 18:38:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-22 18:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 18:38:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 18:38:52,920 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 18:38:52,922 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 18:38:53,681 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 18:38:53,775 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 18:38:53,776 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 18:38:53,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:38:53 BoogieIcfgContainer [2023-11-22 18:38:53,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 18:38:53,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 18:38:53,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 18:38:53,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 18:38:53,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:38:51" (1/3) ... [2023-11-22 18:38:53,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297cebb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:38:53, skipping insertion in model container [2023-11-22 18:38:53,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:38:52" (2/3) ... [2023-11-22 18:38:53,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297cebb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:38:53, skipping insertion in model container [2023-11-22 18:38:53,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:38:53" (3/3) ... [2023-11-22 18:38:53,786 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2023-11-22 18:38:53,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 18:38:53,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 18:38:53,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 18:38:53,855 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;@422d64e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 18:38:53,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 18:38:53,860 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 18:38:53,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-22 18:38:53,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:38:53,881 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 18:38:53,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:38:53,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:38:53,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1376610380, now seen corresponding path program 1 times [2023-11-22 18:38:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:38:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50382447] [2023-11-22 18:38:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:38:53,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:38:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:38:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:38:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:38:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:38:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:38:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 18:38:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:38:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 18:38:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 18:38:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-22 18:38:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 18:38:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:38:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:54,875 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 18:38:54,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:38:54,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50382447] [2023-11-22 18:38:54,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50382447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:38:54,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:38:54,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:38:54,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417266736] [2023-11-22 18:38:54,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:38:54,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:38:54,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:38:54,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:38:54,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:38:54,918 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 18:38:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:38:57,397 INFO L93 Difference]: Finished difference Result 552 states and 806 transitions. [2023-11-22 18:38:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:38:57,408 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 18:38:57,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:38:57,422 INFO L225 Difference]: With dead ends: 552 [2023-11-22 18:38:57,422 INFO L226 Difference]: Without dead ends: 303 [2023-11-22 18:38:57,426 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 18:38:57,428 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 197 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:38:57,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 971 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-22 18:38:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-22 18:38:57,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 233. [2023-11-22 18:38:57,481 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 18:38:57,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 325 transitions. [2023-11-22 18:38:57,483 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 325 transitions. Word has length 99 [2023-11-22 18:38:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:38:57,484 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 325 transitions. [2023-11-22 18:38:57,484 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 18:38:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 325 transitions. [2023-11-22 18:38:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:38:57,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:38:57,491 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 18:38:57,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 18:38:57,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:38:57,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:38:57,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1901770316, now seen corresponding path program 1 times [2023-11-22 18:38:57,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:38:57,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92552863] [2023-11-22 18:38:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:38:57,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:38:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:38:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:38:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:38:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:38:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:38:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:38:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:38:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:38:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:38:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:38:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:38:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:38:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:38:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:57,918 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 18:38:57,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:38:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92552863] [2023-11-22 18:38:57,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92552863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:38:57,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:38:57,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:38:57,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483336750] [2023-11-22 18:38:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:38:57,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:38:57,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:38:57,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:38:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:38:57,921 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 18:38:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:38:59,474 INFO L93 Difference]: Finished difference Result 486 states and 684 transitions. [2023-11-22 18:38:59,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:38:59,474 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 18:38:59,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:38:59,481 INFO L225 Difference]: With dead ends: 486 [2023-11-22 18:38:59,481 INFO L226 Difference]: Without dead ends: 257 [2023-11-22 18:38:59,487 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 18:38:59,488 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 138 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:38:59,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 599 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-22 18:38:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-22 18:38:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 234. [2023-11-22 18:38:59,526 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 18:38:59,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 326 transitions. [2023-11-22 18:38:59,528 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 326 transitions. Word has length 105 [2023-11-22 18:38:59,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:38:59,528 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 326 transitions. [2023-11-22 18:38:59,528 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 18:38:59,529 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 326 transitions. [2023-11-22 18:38:59,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:38:59,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:38:59,530 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 18:38:59,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 18:38:59,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:38:59,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:38:59,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1956163214, now seen corresponding path program 1 times [2023-11-22 18:38:59,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:38:59,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662942918] [2023-11-22 18:38:59,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:38:59,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:38:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:38:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:38:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:38:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:38:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:38:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:38:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:38:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:38:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:38:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:38:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:38:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:38:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:38:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:38:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:38:59,994 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 18:38:59,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:38:59,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662942918] [2023-11-22 18:38:59,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662942918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:38:59,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:38:59,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:38:59,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943088400] [2023-11-22 18:38:59,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:38:59,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:38:59,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:38:59,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:38:59,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:38:59,999 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 18:39:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:02,315 INFO L93 Difference]: Finished difference Result 561 states and 802 transitions. [2023-11-22 18:39:02,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:39:02,315 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 18:39:02,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:02,320 INFO L225 Difference]: With dead ends: 561 [2023-11-22 18:39:02,321 INFO L226 Difference]: Without dead ends: 331 [2023-11-22 18:39:02,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 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 18:39:02,322 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 207 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:02,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 1014 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-22 18:39:02,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-22 18:39:02,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 236. [2023-11-22 18:39:02,342 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 18:39:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 328 transitions. [2023-11-22 18:39:02,344 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 328 transitions. Word has length 105 [2023-11-22 18:39:02,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:02,344 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 328 transitions. [2023-11-22 18:39:02,344 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 18:39:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 328 transitions. [2023-11-22 18:39:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:39:02,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:02,346 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 18:39:02,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 18:39:02,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:02,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -32935180, now seen corresponding path program 1 times [2023-11-22 18:39:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:02,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401613716] [2023-11-22 18:39:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:02,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:02,741 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 18:39:02,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:02,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401613716] [2023-11-22 18:39:02,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401613716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:02,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:02,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:39:02,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553706647] [2023-11-22 18:39:02,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:02,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:39:02,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:02,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:39:02,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:39:02,745 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 18:39:04,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:04,306 INFO L93 Difference]: Finished difference Result 492 states and 690 transitions. [2023-11-22 18:39:04,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:39:04,306 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 18:39:04,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:04,308 INFO L225 Difference]: With dead ends: 492 [2023-11-22 18:39:04,308 INFO L226 Difference]: Without dead ends: 260 [2023-11-22 18:39:04,309 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 18:39:04,309 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 138 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:04,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 599 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-22 18:39:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-22 18:39:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 237. [2023-11-22 18:39:04,363 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 18:39:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 329 transitions. [2023-11-22 18:39:04,380 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 329 transitions. Word has length 105 [2023-11-22 18:39:04,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:04,383 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 329 transitions. [2023-11-22 18:39:04,383 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 18:39:04,383 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 329 transitions. [2023-11-22 18:39:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-22 18:39:04,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:04,385 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 18:39:04,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 18:39:04,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:04,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash -542408270, now seen corresponding path program 1 times [2023-11-22 18:39:04,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:04,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224126896] [2023-11-22 18:39:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:04,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:04,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:04,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:05,146 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 18:39:05,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:05,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224126896] [2023-11-22 18:39:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224126896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:05,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:05,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:39:05,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974385339] [2023-11-22 18:39:05,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:05,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:39:05,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:05,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:39:05,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:39:05,150 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 18:39:08,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:08,580 INFO L93 Difference]: Finished difference Result 766 states and 1085 transitions. [2023-11-22 18:39:08,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 18:39:08,580 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 18:39:08,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:08,584 INFO L225 Difference]: With dead ends: 766 [2023-11-22 18:39:08,584 INFO L226 Difference]: Without dead ends: 762 [2023-11-22 18:39:08,585 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 18:39:08,585 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 945 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:08,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 781 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-22 18:39:08,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-11-22 18:39:08,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 693. [2023-11-22 18:39:08,650 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 18:39:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 969 transitions. [2023-11-22 18:39:08,654 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 969 transitions. Word has length 105 [2023-11-22 18:39:08,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:08,654 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 969 transitions. [2023-11-22 18:39:08,654 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 18:39:08,654 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 969 transitions. [2023-11-22 18:39:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-22 18:39:08,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:08,656 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 18:39:08,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 18:39:08,656 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:08,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:08,657 INFO L85 PathProgramCache]: Analyzing trace with hash -594832168, now seen corresponding path program 1 times [2023-11-22 18:39:08,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:08,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520749479] [2023-11-22 18:39:08,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:08,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:08,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:08,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:08,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,127 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 18:39:09,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:09,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520749479] [2023-11-22 18:39:09,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520749479] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:39:09,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336328184] [2023-11-22 18:39:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:09,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:39:09,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:39:09,129 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 18:39:09,135 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 18:39:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:09,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 18:39:09,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:39:09,745 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 18:39:09,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:39:09,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336328184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:09,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 18:39:09,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-22 18:39:09,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048042664] [2023-11-22 18:39:09,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:09,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:39:09,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:39:09,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:39:09,747 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 18:39:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:10,230 INFO L93 Difference]: Finished difference Result 1384 states and 1937 transitions. [2023-11-22 18:39:10,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:39:10,231 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 18:39:10,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:10,235 INFO L225 Difference]: With dead ends: 1384 [2023-11-22 18:39:10,236 INFO L226 Difference]: Without dead ends: 1151 [2023-11-22 18:39:10,237 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 18:39:10,237 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 311 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:10,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 804 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-22 18:39:10,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2023-11-22 18:39:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 921. [2023-11-22 18:39:10,299 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 18:39:10,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1286 transitions. [2023-11-22 18:39:10,303 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1286 transitions. Word has length 113 [2023-11-22 18:39:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:10,305 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1286 transitions. [2023-11-22 18:39:10,305 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 18:39:10,305 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1286 transitions. [2023-11-22 18:39:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:39:10,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:10,308 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 18:39:10,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 18:39:10,525 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 18:39:10,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:10,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:10,526 INFO L85 PathProgramCache]: Analyzing trace with hash -584614501, now seen corresponding path program 1 times [2023-11-22 18:39:10,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:10,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556758672] [2023-11-22 18:39:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:10,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:39:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:11,070 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 18:39:11,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556758672] [2023-11-22 18:39:11,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556758672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:11,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:11,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:39:11,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264213570] [2023-11-22 18:39:11,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:11,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:39:11,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:11,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:39:11,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:39:11,074 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 18:39:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:13,649 INFO L93 Difference]: Finished difference Result 2430 states and 3513 transitions. [2023-11-22 18:39:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:39:13,650 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 18:39:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:13,656 INFO L225 Difference]: With dead ends: 2430 [2023-11-22 18:39:13,656 INFO L226 Difference]: Without dead ends: 1513 [2023-11-22 18:39:13,659 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 18:39:13,659 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, 2.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:13,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1203 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-22 18:39:13,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2023-11-22 18:39:13,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 929. [2023-11-22 18:39:13,731 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 18:39:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1294 transitions. [2023-11-22 18:39:13,735 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1294 transitions. Word has length 150 [2023-11-22 18:39:13,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:13,735 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1294 transitions. [2023-11-22 18:39:13,735 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 18:39:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1294 transitions. [2023-11-22 18:39:13,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:39:13,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:13,737 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 18:39:13,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 18:39:13,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:13,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:13,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1864985629, now seen corresponding path program 1 times [2023-11-22 18:39:13,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:13,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110379092] [2023-11-22 18:39:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:13,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:13,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:13,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:39:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:14,207 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 18:39:14,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:14,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110379092] [2023-11-22 18:39:14,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110379092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:14,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:14,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:39:14,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050210963] [2023-11-22 18:39:14,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:14,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:39:14,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:14,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:39:14,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:39:14,209 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 18:39:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:15,856 INFO L93 Difference]: Finished difference Result 1950 states and 2739 transitions. [2023-11-22 18:39:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:39:15,857 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 18:39:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:15,861 INFO L225 Difference]: With dead ends: 1950 [2023-11-22 18:39:15,861 INFO L226 Difference]: Without dead ends: 1025 [2023-11-22 18:39:15,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 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 18:39:15,864 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 138 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:15,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 597 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-22 18:39:15,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-22 18:39:15,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 933. [2023-11-22 18:39:15,930 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 18:39:15,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1298 transitions. [2023-11-22 18:39:15,998 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1298 transitions. Word has length 150 [2023-11-22 18:39:15,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:15,999 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1298 transitions. [2023-11-22 18:39:15,999 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 18:39:15,999 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1298 transitions. [2023-11-22 18:39:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 18:39:16,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:16,005 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 18:39:16,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 18:39:16,008 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:16,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash 493178331, now seen corresponding path program 1 times [2023-11-22 18:39:16,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:16,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465413058] [2023-11-22 18:39:16,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:16,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 18:39:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:16,492 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 18:39:16,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:16,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465413058] [2023-11-22 18:39:16,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465413058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:16,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:16,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:39:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690990000] [2023-11-22 18:39:16,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:16,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:39:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:39:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:39:16,495 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 18:39:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:19,258 INFO L93 Difference]: Finished difference Result 2906 states and 4247 transitions. [2023-11-22 18:39:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:39:19,259 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 18:39:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:19,267 INFO L225 Difference]: With dead ends: 2906 [2023-11-22 18:39:19,267 INFO L226 Difference]: Without dead ends: 1977 [2023-11-22 18:39:19,270 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 18:39:19,271 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 405 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:19,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1403 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-22 18:39:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2023-11-22 18:39:19,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 941. [2023-11-22 18:39:19,355 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 18:39:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1306 transitions. [2023-11-22 18:39:19,359 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1306 transitions. Word has length 150 [2023-11-22 18:39:19,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:19,360 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1306 transitions. [2023-11-22 18:39:19,360 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 18:39:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1306 transitions. [2023-11-22 18:39:19,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-22 18:39:19,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:19,365 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 18:39:19,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 18:39:19,366 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:19,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash 79029050, now seen corresponding path program 1 times [2023-11-22 18:39:19,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:19,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492638989] [2023-11-22 18:39:19,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:19,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-22 18:39:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:19,876 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 18:39:19,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:19,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492638989] [2023-11-22 18:39:19,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492638989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:19,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:19,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:39:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944855136] [2023-11-22 18:39:19,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:19,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:39:19,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:19,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:39:19,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:39:19,878 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 18:39:22,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:22,609 INFO L93 Difference]: Finished difference Result 3090 states and 4533 transitions. [2023-11-22 18:39:22,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:39:22,609 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 18:39:22,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:22,640 INFO L225 Difference]: With dead ends: 3090 [2023-11-22 18:39:22,640 INFO L226 Difference]: Without dead ends: 2153 [2023-11-22 18:39:22,643 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 18:39:22,643 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 477 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:22,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1511 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-22 18:39:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2023-11-22 18:39:22,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 949. [2023-11-22 18:39:22,803 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 18:39:22,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1314 transitions. [2023-11-22 18:39:22,822 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1314 transitions. Word has length 151 [2023-11-22 18:39:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:22,825 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1314 transitions. [2023-11-22 18:39:22,826 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 18:39:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1314 transitions. [2023-11-22 18:39:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-22 18:39:22,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:22,827 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 18:39:22,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-22 18:39:22,828 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:22,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 258983410, now seen corresponding path program 1 times [2023-11-22 18:39:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112314443] [2023-11-22 18:39:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:22,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-22 18:39:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:23,320 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 18:39:23,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:23,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112314443] [2023-11-22 18:39:23,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112314443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:23,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:23,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:39:23,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438112323] [2023-11-22 18:39:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:23,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:39:23,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:23,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:39:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:39:23,322 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 18:39:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:25,167 INFO L93 Difference]: Finished difference Result 2278 states and 3223 transitions. [2023-11-22 18:39:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:39:25,168 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 18:39:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:25,173 INFO L225 Difference]: With dead ends: 2278 [2023-11-22 18:39:25,173 INFO L226 Difference]: Without dead ends: 1333 [2023-11-22 18:39:25,175 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 18:39:25,175 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 18:39:25,176 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 18:39:25,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-11-22 18:39:25,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1012. [2023-11-22 18:39:25,273 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 18:39:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1407 transitions. [2023-11-22 18:39:25,280 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1407 transitions. Word has length 151 [2023-11-22 18:39:25,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:25,281 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1407 transitions. [2023-11-22 18:39:25,281 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 18:39:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1407 transitions. [2023-11-22 18:39:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-22 18:39:25,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:25,283 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 18:39:25,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-22 18:39:25,283 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:25,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:25,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1845204848, now seen corresponding path program 1 times [2023-11-22 18:39:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:25,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285084867] [2023-11-22 18:39:25,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:39:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:25,737 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 18:39:25,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:25,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285084867] [2023-11-22 18:39:25,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285084867] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:39:25,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628717796] [2023-11-22 18:39:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:25,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:39:25,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:39:25,739 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 18:39:25,740 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 18:39:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:26,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 18:39:26,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:39:26,379 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 18:39:26,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 18:39:26,455 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 18:39:26,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628717796] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 18:39:26,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 18:39:26,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2023-11-22 18:39:26,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184884999] [2023-11-22 18:39:26,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 18:39:26,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 18:39:26,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 18:39:26,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-22 18:39:26,458 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 18:39:28,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:28,307 INFO L93 Difference]: Finished difference Result 2538 states and 3631 transitions. [2023-11-22 18:39:28,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 18:39:28,308 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 18:39:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:28,313 INFO L225 Difference]: With dead ends: 2538 [2023-11-22 18:39:28,313 INFO L226 Difference]: Without dead ends: 1530 [2023-11-22 18:39:28,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:39:28,316 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 208 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:28,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 987 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-22 18:39:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2023-11-22 18:39:28,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1316. [2023-11-22 18:39:28,407 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 18:39:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1855 transitions. [2023-11-22 18:39:28,410 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1855 transitions. Word has length 152 [2023-11-22 18:39:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:28,411 INFO L495 AbstractCegarLoop]: Abstraction has 1316 states and 1855 transitions. [2023-11-22 18:39:28,411 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 18:39:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1855 transitions. [2023-11-22 18:39:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-22 18:39:28,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:28,413 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 18:39:28,429 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 18:39:28,629 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 18:39:28,629 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:28,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:28,629 INFO L85 PathProgramCache]: Analyzing trace with hash -831682783, now seen corresponding path program 1 times [2023-11-22 18:39:28,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:28,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911587030] [2023-11-22 18:39:28,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:28,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:28,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:28,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:28,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:39:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 18:39:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:29,063 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 18:39:29,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:29,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911587030] [2023-11-22 18:39:29,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911587030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:29,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:29,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:39:29,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915122042] [2023-11-22 18:39:29,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:29,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:39:29,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:29,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:39:29,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:39:29,066 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 18:39:31,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:31,942 INFO L93 Difference]: Finished difference Result 2063 states and 2947 transitions. [2023-11-22 18:39:31,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:39:31,943 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 18:39:31,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:31,962 INFO L225 Difference]: With dead ends: 2063 [2023-11-22 18:39:31,962 INFO L226 Difference]: Without dead ends: 1057 [2023-11-22 18:39:31,964 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 18:39:31,965 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 396 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:31,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1010 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-22 18:39:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-11-22 18:39:32,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 983. [2023-11-22 18:39:32,076 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 18:39:32,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1371 transitions. [2023-11-22 18:39:32,078 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1371 transitions. Word has length 160 [2023-11-22 18:39:32,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:32,079 INFO L495 AbstractCegarLoop]: Abstraction has 983 states and 1371 transitions. [2023-11-22 18:39:32,079 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 18:39:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1371 transitions. [2023-11-22 18:39:32,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-22 18:39:32,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:32,083 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 18:39:32,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-22 18:39:32,083 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:32,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:32,084 INFO L85 PathProgramCache]: Analyzing trace with hash -611749994, now seen corresponding path program 1 times [2023-11-22 18:39:32,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:32,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878119509] [2023-11-22 18:39:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:32,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:39:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 18:39:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-22 18:39:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:32,548 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 18:39:32,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:32,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878119509] [2023-11-22 18:39:32,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878119509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:32,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:32,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:39:32,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631201238] [2023-11-22 18:39:32,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:32,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:39:32,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:39:32,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:39:32,553 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 18:39:34,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:34,820 INFO L93 Difference]: Finished difference Result 2634 states and 3786 transitions. [2023-11-22 18:39:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 18:39:34,821 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 18:39:34,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:34,827 INFO L225 Difference]: With dead ends: 2634 [2023-11-22 18:39:34,827 INFO L226 Difference]: Without dead ends: 1655 [2023-11-22 18:39:34,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 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 18:39:34,829 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 304 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:34,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1295 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-22 18:39:34,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2023-11-22 18:39:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 989. [2023-11-22 18:39:34,901 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 18:39:34,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1377 transitions. [2023-11-22 18:39:34,903 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1377 transitions. Word has length 180 [2023-11-22 18:39:34,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:34,903 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1377 transitions. [2023-11-22 18:39:34,903 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 18:39:34,903 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1377 transitions. [2023-11-22 18:39:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-22 18:39:34,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:34,906 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 18:39:34,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-22 18:39:34,906 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:34,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:34,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1212147252, now seen corresponding path program 1 times [2023-11-22 18:39:34,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:34,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706672760] [2023-11-22 18:39:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:34,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:39:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 18:39:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 18:39:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:35,332 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 18:39:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706672760] [2023-11-22 18:39:35,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706672760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:35,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 18:39:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850002691] [2023-11-22 18:39:35,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:35,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 18:39:35,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:35,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 18:39:35,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-22 18:39:35,335 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 18:39:37,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:37,597 INFO L93 Difference]: Finished difference Result 1899 states and 2651 transitions. [2023-11-22 18:39:37,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 18:39:37,598 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 18:39:37,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:37,601 INFO L225 Difference]: With dead ends: 1899 [2023-11-22 18:39:37,601 INFO L226 Difference]: Without dead ends: 914 [2023-11-22 18:39:37,604 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 18:39:37,604 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 470 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:37,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 602 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-22 18:39:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-11-22 18:39:37,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 843. [2023-11-22 18:39:37,670 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 18:39:37,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1155 transitions. [2023-11-22 18:39:37,672 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1155 transitions. Word has length 190 [2023-11-22 18:39:37,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:37,672 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1155 transitions. [2023-11-22 18:39:37,672 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 18:39:37,673 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1155 transitions. [2023-11-22 18:39:37,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-22 18:39:37,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:39:37,675 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 18:39:37,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-22 18:39:37,675 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:39:37,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:39:37,675 INFO L85 PathProgramCache]: Analyzing trace with hash 836152208, now seen corresponding path program 2 times [2023-11-22 18:39:37,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:39:37,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65493365] [2023-11-22 18:39:37,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:39:37,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:39:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 18:39:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 18:39:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 18:39:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 18:39:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 18:39:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 18:39:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 18:39:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-22 18:39:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 18:39:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 18:39:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 18:39:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 18:39:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 18:39:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-22 18:39:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 18:39:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 18:39:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 18:39:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 18:39:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:39:38,277 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 18:39:38,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:39:38,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65493365] [2023-11-22 18:39:38,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65493365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:39:38,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:39:38,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 18:39:38,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472510227] [2023-11-22 18:39:38,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:39:38,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 18:39:38,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:39:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 18:39:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 18:39:38,280 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 18:39:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:39:40,954 INFO L93 Difference]: Finished difference Result 1214 states and 1697 transitions. [2023-11-22 18:39:40,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 18:39:40,955 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 18:39:40,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:39:40,955 INFO L225 Difference]: With dead ends: 1214 [2023-11-22 18:39:40,955 INFO L226 Difference]: Without dead ends: 0 [2023-11-22 18:39:40,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-22 18:39:40,957 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 968 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:39:40,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 613 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 18:39:40,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-22 18:39:40,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-22 18:39:40,958 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 18:39:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-22 18:39:40,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2023-11-22 18:39:40,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:39:40,959 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-22 18:39:40,959 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 18:39:40,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-22 18:39:40,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-22 18:39:40,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-22 18:39:40,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 18:39:40,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-22 18:39:58,162 WARN L293 SmtUtils]: Spent 16.65s 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 18:40:14,206 WARN L293 SmtUtils]: Spent 16.04s 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 18:40:30,095 WARN L293 SmtUtils]: Spent 15.89s 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 18:40:48,286 WARN L293 SmtUtils]: Spent 17.69s 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 18:41:05,352 WARN L293 SmtUtils]: Spent 17.06s 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 18:41:22,234 WARN L293 SmtUtils]: Spent 16.88s 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 18:41:40,454 WARN L293 SmtUtils]: Spent 17.68s 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 18:41:57,588 WARN L293 SmtUtils]: Spent 17.13s 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 18:42:14,446 WARN L293 SmtUtils]: Spent 16.86s 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 18:42:34,058 WARN L293 SmtUtils]: Spent 17.71s 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 18:42:51,192 WARN L293 SmtUtils]: Spent 17.13s 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 18:43:08,036 WARN L293 SmtUtils]: Spent 16.84s 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) Killed by 15