./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/seq-pthread/cs_peterson.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:51:55,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:51:55,900 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:51:55,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:51:55,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:51:55,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:51:55,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:51:55,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:51:55,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:51:55,939 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:51:55,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:51:55,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:51:55,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:51:55,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:51:55,941 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:51:55,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:51:55,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:51:55,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:51:55,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:51:55,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:51:55,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:51:55,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:51:55,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:51:55,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:51:55,946 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:51:55,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:51:55,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:51:55,946 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:51:55,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:51:55,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:51:55,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:51:55,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:51:55,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:51:55,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:51:55,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:51:55,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:51:55,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:51:55,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:51:55,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:51:55,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:51:55,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:51:55,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:51:55,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 [2024-11-11 21:51:56,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:51:56,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:51:56,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:51:56,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:51:56,169 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:51:56,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-11-11 21:51:57,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:51:57,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:51:57,582 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-11-11 21:51:57,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7664a15/ecbb9ba90d434791872facab46d19123/FLAG509d196b9 [2024-11-11 21:51:57,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7664a15/ecbb9ba90d434791872facab46d19123 [2024-11-11 21:51:57,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:51:57,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:51:57,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:51:57,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:51:57,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:51:57,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:51:57" (1/1) ... [2024-11-11 21:51:57,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5cbb48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:57, skipping insertion in model container [2024-11-11 21:51:57,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:51:57" (1/1) ... [2024-11-11 21:51:57,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:51:57,909 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i[23605,23618] [2024-11-11 21:51:58,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:51:58,042 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:51:58,064 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i[23605,23618] [2024-11-11 21:51:58,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:51:58,129 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:51:58,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58 WrapperNode [2024-11-11 21:51:58,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:51:58,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:51:58,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:51:58,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:51:58,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,186 INFO L138 Inliner]: procedures = 145, calls = 285, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 443 [2024-11-11 21:51:58,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:51:58,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:51:58,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:51:58,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:51:58,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,230 INFO L175 MemorySlicer]: Split 156 memory accesses to 18 slices as follows [2, 5, 8, 8, 8, 29, 21, 7, 7, 7, 13, 7, 13, 5, 5, 6, 0, 5]. 19 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 3, 3, 3, 9, 9, 3, 3, 3, 0, 3, 0, 0, 0, 2, 0, 0]. The 39 writes are split as follows [0, 1, 2, 2, 2, 11, 6, 2, 2, 2, 1, 2, 1, 1, 1, 2, 0, 1]. [2024-11-11 21:51:58,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:51:58,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:51:58,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:51:58,299 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:51:58,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (1/1) ... [2024-11-11 21:51:58,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:51:58,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:51:58,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 21:51:58,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 21:51:58,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 21:51:58,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 21:51:58,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 21:51:58,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 21:51:58,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-11 21:51:58,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-11 21:51:58,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-11 21:51:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-11 21:51:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-11 21:51:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-11 21:51:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-11 21:51:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-11 21:51:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-11 21:51:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-11 21:51:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-11 21:51:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-11 21:51:58,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-11 21:51:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-11 21:51:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-11 21:51:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-11 21:51:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-11 21:51:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-11 21:51:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-11 21:51:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-11 21:51:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-11 21:51:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-11 21:51:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-11 21:51:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-11 21:51:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-11 21:51:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-11 21:51:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-11 21:51:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-11 21:51:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-11 21:51:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-11 21:51:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-11 21:51:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-11 21:51:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-11 21:51:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-11 21:51:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-11 21:51:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 21:51:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-11 21:51:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-11 21:51:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-11 21:51:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-11 21:51:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-11 21:51:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-11 21:51:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:51:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 21:51:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 21:51:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 21:51:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 21:51:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 21:51:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-11 21:51:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-11 21:51:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-11 21:51:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:51:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:51:58,571 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:51:58,572 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:52:03,010 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-11 21:52:03,010 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:52:03,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:52:03,021 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-11 21:52:03,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:52:03 BoogieIcfgContainer [2024-11-11 21:52:03,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:52:03,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:52:03,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:52:03,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:52:03,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:51:57" (1/3) ... [2024-11-11 21:52:03,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7322aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:52:03, skipping insertion in model container [2024-11-11 21:52:03,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:51:58" (2/3) ... [2024-11-11 21:52:03,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7322aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:52:03, skipping insertion in model container [2024-11-11 21:52:03,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:52:03" (3/3) ... [2024-11-11 21:52:03,030 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2024-11-11 21:52:03,043 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:52:03,043 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:52:03,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:52:03,104 INFO L333 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, 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;@3d9bf357, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:52:03,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:52:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 73 states have internal predecessors, (95), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 21:52:03,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:52:03,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:52:03,119 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:52:03,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:52:03,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:52:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1546977805, now seen corresponding path program 1 times [2024-11-11 21:52:03,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:52:03,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164404989] [2024-11-11 21:52:03,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:03,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:52:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 21:52:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:52:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 21:52:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-11 21:52:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:52:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 21:52:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:52:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:52:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 21:52:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 21:52:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 21:52:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 21:52:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 21:52:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 21:52:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 21:52:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 21:52:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:52:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:52:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:52:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:52:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-11 21:52:03,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:52:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164404989] [2024-11-11 21:52:03,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164404989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:52:03,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:52:03,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:52:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120710121] [2024-11-11 21:52:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:52:03,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:52:03,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:52:03,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:52:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:52:03,818 INFO L87 Difference]: Start difference. First operand has 113 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 73 states have internal predecessors, (95), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-11 21:52:03,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:52:03,875 INFO L93 Difference]: Finished difference Result 228 states and 364 transitions. [2024-11-11 21:52:03,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:52:03,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2024-11-11 21:52:03,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:52:03,883 INFO L225 Difference]: With dead ends: 228 [2024-11-11 21:52:03,883 INFO L226 Difference]: Without dead ends: 113 [2024-11-11 21:52:03,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:52:03,889 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 4 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:52:03,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 309 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:52:03,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-11 21:52:03,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2024-11-11 21:52:03,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 70 states have internal predecessors, (88), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 21:52:03,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-11-11 21:52:03,936 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 132 [2024-11-11 21:52:03,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:52:03,937 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-11-11 21:52:03,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-11 21:52:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-11-11 21:52:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 21:52:03,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:52:03,940 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:52:03,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:52:03,940 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:52:03,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:52:03,941 INFO L85 PathProgramCache]: Analyzing trace with hash 363959049, now seen corresponding path program 1 times [2024-11-11 21:52:03,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:52:03,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830040744] [2024-11-11 21:52:03,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:03,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:52:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 21:52:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 21:52:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 21:52:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 21:52:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 21:52:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 21:52:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 21:52:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 21:52:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 21:52:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 21:52:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 21:52:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 21:52:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:52:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 21:52:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 21:52:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:52:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 21:52:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 21:52:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 21:52:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 21:52:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,249 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-11 21:52:04,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:52:04,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830040744] [2024-11-11 21:52:04,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830040744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:52:04,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:52:04,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:52:04,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568817809] [2024-11-11 21:52:04,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:52:04,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:52:04,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:52:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:52:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:52:04,252 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-11 21:52:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:52:04,281 INFO L93 Difference]: Finished difference Result 219 states and 312 transitions. [2024-11-11 21:52:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:52:04,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 135 [2024-11-11 21:52:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:52:04,285 INFO L225 Difference]: With dead ends: 219 [2024-11-11 21:52:04,285 INFO L226 Difference]: Without dead ends: 112 [2024-11-11 21:52:04,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:52:04,287 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 1 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:52:04,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 303 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:52:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-11 21:52:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-11 21:52:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 21:52:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 157 transitions. [2024-11-11 21:52:04,303 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 157 transitions. Word has length 135 [2024-11-11 21:52:04,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:52:04,303 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 157 transitions. [2024-11-11 21:52:04,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-11 21:52:04,303 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2024-11-11 21:52:04,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-11 21:52:04,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:52:04,308 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:52:04,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:52:04,310 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:52:04,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:52:04,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1813330869, now seen corresponding path program 1 times [2024-11-11 21:52:04,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:52:04,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264027847] [2024-11-11 21:52:04,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:04,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:52:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 21:52:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 21:52:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 21:52:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 21:52:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 21:52:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 21:52:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 21:52:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 21:52:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 21:52:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 21:52:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 21:52:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 21:52:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 21:52:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 21:52:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 21:52:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 21:52:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 21:52:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 21:52:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 21:52:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 21:52:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-11 21:52:04,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:52:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264027847] [2024-11-11 21:52:04,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264027847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:52:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586848527] [2024-11-11 21:52:04,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:04,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:52:04,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:52:04,561 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) [2024-11-11 21:52:04,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 21:52:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:04,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 21:52:04,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:52:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-11 21:52:04,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 21:52:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-11 21:52:05,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586848527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 21:52:05,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 21:52:05,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-11 21:52:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715207877] [2024-11-11 21:52:05,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 21:52:05,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:52:05,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:52:05,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:52:05,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:52:05,079 INFO L87 Difference]: Start difference. First operand 111 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-11 21:52:05,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:52:05,127 INFO L93 Difference]: Finished difference Result 223 states and 317 transitions. [2024-11-11 21:52:05,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:52:05,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 137 [2024-11-11 21:52:05,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:52:05,129 INFO L225 Difference]: With dead ends: 223 [2024-11-11 21:52:05,129 INFO L226 Difference]: Without dead ends: 115 [2024-11-11 21:52:05,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:52:05,131 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 1 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:52:05,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 603 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:52:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-11 21:52:05,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-11 21:52:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 21:52:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2024-11-11 21:52:05,139 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 137 [2024-11-11 21:52:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:52:05,139 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2024-11-11 21:52:05,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-11 21:52:05,140 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2024-11-11 21:52:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 21:52:05,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:52:05,141 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:52:05,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 21:52:05,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:52:05,343 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:52:05,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:52:05,344 INFO L85 PathProgramCache]: Analyzing trace with hash -663261873, now seen corresponding path program 2 times [2024-11-11 21:52:05,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:52:05,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502232832] [2024-11-11 21:52:05,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:05,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:52:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 21:52:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 21:52:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 21:52:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 21:52:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 21:52:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 21:52:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 21:52:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 21:52:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 21:52:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 21:52:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 21:52:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 21:52:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 21:52:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 21:52:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 21:52:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 21:52:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 21:52:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 21:52:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 21:52:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-11 21:52:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2024-11-11 21:52:05,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:52:05,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502232832] [2024-11-11 21:52:05,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502232832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:52:05,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235785456] [2024-11-11 21:52:05,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 21:52:05,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:52:05,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:52:05,662 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) [2024-11-11 21:52:05,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 21:52:05,942 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-11 21:52:05,942 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 21:52:05,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 21:52:05,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:52:06,115 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-11 21:52:06,115 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 21:52:06,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235785456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:52:06,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 21:52:06,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 21:52:06,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157842415] [2024-11-11 21:52:06,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:52:06,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:52:06,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:52:06,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:52:06,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:52:06,117 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-11 21:52:06,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:52:06,144 INFO L93 Difference]: Finished difference Result 215 states and 308 transitions. [2024-11-11 21:52:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:52:06,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2024-11-11 21:52:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:52:06,155 INFO L225 Difference]: With dead ends: 215 [2024-11-11 21:52:06,157 INFO L226 Difference]: Without dead ends: 169 [2024-11-11 21:52:06,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:52:06,159 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 74 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:52:06,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 478 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:52:06,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-11 21:52:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-11 21:52:06,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 111 states have internal predecessors, (142), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (51), 47 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-11 21:52:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2024-11-11 21:52:06,174 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 141 [2024-11-11 21:52:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:52:06,176 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2024-11-11 21:52:06,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-11 21:52:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2024-11-11 21:52:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-11 21:52:06,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:52:06,178 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:52:06,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 21:52:06,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-11 21:52:06,379 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:52:06,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:52:06,380 INFO L85 PathProgramCache]: Analyzing trace with hash -421881519, now seen corresponding path program 1 times [2024-11-11 21:52:06,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:52:06,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535015693] [2024-11-11 21:52:06,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:06,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:52:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:52:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:52:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:52:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:52:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:52:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:52:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:52:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 21:52:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 21:52:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 21:52:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:52:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:52:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:52:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:52:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:52:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:52:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:52:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:52:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:52:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:52:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:52:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:52:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:52:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:52:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:52:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:52:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:52:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2024-11-11 21:52:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:52:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535015693] [2024-11-11 21:52:06,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535015693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:52:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30931283] [2024-11-11 21:52:06,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:06,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:52:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:52:06,828 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 21:52:06,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 21:52:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:07,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 21:52:07,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:52:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2024-11-11 21:52:07,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 21:52:07,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2024-11-11 21:52:07,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30931283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 21:52:07,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 21:52:07,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2024-11-11 21:52:07,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265600532] [2024-11-11 21:52:07,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 21:52:07,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:52:07,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:52:07,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:52:07,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:52:07,428 INFO L87 Difference]: Start difference. First operand 169 states and 240 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2024-11-11 21:52:11,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:15,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:16,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:52:16,228 INFO L93 Difference]: Finished difference Result 354 states and 502 transitions. [2024-11-11 21:52:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:52:16,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 210 [2024-11-11 21:52:16,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:52:16,230 INFO L225 Difference]: With dead ends: 354 [2024-11-11 21:52:16,231 INFO L226 Difference]: Without dead ends: 197 [2024-11-11 21:52:16,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:52:16,232 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 48 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:52:16,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 558 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 406 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2024-11-11 21:52:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-11 21:52:16,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2024-11-11 21:52:16,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 132 states have (on average 1.25) internal successors, (165), 134 states have internal predecessors, (165), 47 states have call successors, (47), 10 states have call predecessors, (47), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2024-11-11 21:52:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 267 transitions. [2024-11-11 21:52:16,249 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 267 transitions. Word has length 210 [2024-11-11 21:52:16,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:52:16,250 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 267 transitions. [2024-11-11 21:52:16,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2024-11-11 21:52:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 267 transitions. [2024-11-11 21:52:16,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-11 21:52:16,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:52:16,253 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:52:16,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-11 21:52:16,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:52:16,454 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:52:16,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:52:16,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1049809455, now seen corresponding path program 2 times [2024-11-11 21:52:16,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:52:16,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142579617] [2024-11-11 21:52:16,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:16,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:52:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 21:52:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:52:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:52:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:52:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:52:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:52:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:52:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:52:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:52:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:52:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:52:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:52:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:52:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:52:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:52:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:52:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:52:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:52:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:52:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:52:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:52:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:52:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:52:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:52:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:52:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-11-11 21:52:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-11 21:52:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2024-11-11 21:52:17,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:52:17,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142579617] [2024-11-11 21:52:17,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142579617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:52:17,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:52:17,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:52:17,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743968543] [2024-11-11 21:52:17,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:52:17,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:52:17,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:52:17,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:52:17,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:52:17,289 INFO L87 Difference]: Start difference. First operand 192 states and 267 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-11 21:52:21,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:25,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:29,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:33,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:37,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:38,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:52:38,784 INFO L93 Difference]: Finished difference Result 498 states and 706 transitions. [2024-11-11 21:52:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 21:52:38,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 228 [2024-11-11 21:52:38,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:52:38,787 INFO L225 Difference]: With dead ends: 498 [2024-11-11 21:52:38,787 INFO L226 Difference]: Without dead ends: 353 [2024-11-11 21:52:38,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-11 21:52:38,788 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 155 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 52 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:52:38,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 690 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 679 Invalid, 5 Unknown, 0 Unchecked, 21.2s Time] [2024-11-11 21:52:38,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-11 21:52:38,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 342. [2024-11-11 21:52:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 225 states have (on average 1.2533333333333334) internal successors, (282), 230 states have internal predecessors, (282), 91 states have call successors, (91), 20 states have call predecessors, (91), 25 states have return successors, (114), 91 states have call predecessors, (114), 91 states have call successors, (114) [2024-11-11 21:52:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 487 transitions. [2024-11-11 21:52:38,841 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 487 transitions. Word has length 228 [2024-11-11 21:52:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:52:38,841 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 487 transitions. [2024-11-11 21:52:38,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-11 21:52:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 487 transitions. [2024-11-11 21:52:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-11 21:52:38,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:52:38,844 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:52:38,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:52:38,844 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:52:38,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:52:38,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1266458875, now seen corresponding path program 1 times [2024-11-11 21:52:38,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:52:38,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643625326] [2024-11-11 21:52:38,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:52:38,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:52:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 21:52:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:52:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:52:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:52:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:52:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:52:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:52:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:52:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:52:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:52:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:52:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:52:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:52:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:52:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:52:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:52:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:52:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:52:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:52:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:52:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:52:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:52:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:52:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:52:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:52:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:52:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-11-11 21:52:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-11 21:52:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:52:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2024-11-11 21:52:39,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:52:39,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643625326] [2024-11-11 21:52:39,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643625326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:52:39,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:52:39,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:52:39,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574122951] [2024-11-11 21:52:39,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:52:39,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:52:39,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:52:39,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:52:39,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:52:39,525 INFO L87 Difference]: Start difference. First operand 342 states and 487 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-11 21:52:43,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:47,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:51,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:55,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:52:59,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:03,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:04,638 INFO L93 Difference]: Finished difference Result 621 states and 873 transitions. [2024-11-11 21:53:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 21:53:04,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 228 [2024-11-11 21:53:04,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:04,640 INFO L225 Difference]: With dead ends: 621 [2024-11-11 21:53:04,640 INFO L226 Difference]: Without dead ends: 317 [2024-11-11 21:53:04,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-11 21:53:04,642 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 151 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 51 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:04,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 696 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 671 Invalid, 6 Unknown, 0 Unchecked, 24.9s Time] [2024-11-11 21:53:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-11 21:53:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 309. [2024-11-11 21:53:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 204 states have (on average 1.2156862745098038) internal successors, (248), 208 states have internal predecessors, (248), 82 states have call successors, (82), 18 states have call predecessors, (82), 22 states have return successors, (96), 82 states have call predecessors, (96), 82 states have call successors, (96) [2024-11-11 21:53:04,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 426 transitions. [2024-11-11 21:53:04,661 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 426 transitions. Word has length 228 [2024-11-11 21:53:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:04,662 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 426 transitions. [2024-11-11 21:53:04,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-11 21:53:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 426 transitions. [2024-11-11 21:53:04,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-11 21:53:04,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:04,664 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:53:04,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:53:04,664 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:04,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash -328087451, now seen corresponding path program 1 times [2024-11-11 21:53:04,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:04,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667069755] [2024-11-11 21:53:04,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:04,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 21:53:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:53:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:53:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:53:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:53:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:53:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:53:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:53:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:53:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:53:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:53:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:53:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:53:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:53:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:53:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:53:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:53:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:53:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:53:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:53:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:53:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:53:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:53:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:53:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:53:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-11-11 21:53:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-11 21:53:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1246 trivial. 0 not checked. [2024-11-11 21:53:05,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667069755] [2024-11-11 21:53:05,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667069755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:53:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879886773] [2024-11-11 21:53:05,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:05,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:53:05,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 21:53:05,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 21:53:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:06,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 21:53:06,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:53:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 320 proven. 4 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2024-11-11 21:53:06,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 21:53:06,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked. [2024-11-11 21:53:06,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879886773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 21:53:06,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 21:53:06,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-11-11 21:53:06,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459449496] [2024-11-11 21:53:06,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 21:53:06,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-11 21:53:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:53:06,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-11 21:53:06,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:53:06,413 INFO L87 Difference]: Start difference. First operand 309 states and 426 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-11-11 21:53:10,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:14,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:18,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:22,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-11 21:53:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:53:24,000 INFO L93 Difference]: Finished difference Result 605 states and 855 transitions. [2024-11-11 21:53:24,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-11 21:53:24,001 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) Word has length 228 [2024-11-11 21:53:24,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:53:24,003 INFO L225 Difference]: With dead ends: 605 [2024-11-11 21:53:24,003 INFO L226 Difference]: Without dead ends: 333 [2024-11-11 21:53:24,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-11-11 21:53:24,005 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 223 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 117 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:53:24,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 755 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 819 Invalid, 4 Unknown, 0 Unchecked, 17.1s Time] [2024-11-11 21:53:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-11 21:53:24,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 326. [2024-11-11 21:53:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 220 states have (on average 1.240909090909091) internal successors, (273), 224 states have internal predecessors, (273), 75 states have call successors, (75), 26 states have call predecessors, (75), 30 states have return successors, (99), 75 states have call predecessors, (99), 75 states have call successors, (99) [2024-11-11 21:53:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 447 transitions. [2024-11-11 21:53:24,033 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 447 transitions. Word has length 228 [2024-11-11 21:53:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:53:24,033 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 447 transitions. [2024-11-11 21:53:24,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (60), 8 states have call predecessors, (60), 7 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-11-11 21:53:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 447 transitions. [2024-11-11 21:53:24,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-11 21:53:24,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:53:24,036 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:53:24,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 21:53:24,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:24,237 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:53:24,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:53:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1835905605, now seen corresponding path program 1 times [2024-11-11 21:53:24,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:53:24,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960036977] [2024-11-11 21:53:24,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:24,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:53:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:25,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 21:53:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:25,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:25,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:25,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 21:53:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 21:53:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:53:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:53:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 21:53:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 21:53:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 21:53:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 21:53:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 21:53:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 21:53:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 21:53:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 21:53:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 21:53:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 21:53:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 21:53:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 21:53:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 21:53:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-11 21:53:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-11 21:53:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-11 21:53:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-11 21:53:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-11 21:53:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-11 21:53:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-11 21:53:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-11 21:53:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-11-11 21:53:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-11 21:53:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1246 trivial. 0 not checked. [2024-11-11 21:53:26,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:53:26,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960036977] [2024-11-11 21:53:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960036977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 21:53:26,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504040581] [2024-11-11 21:53:26,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:53:26,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 21:53:26,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:53:26,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 21:53:26,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 21:53:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:53:26,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-11 21:53:26,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 21:53:27,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-11 21:53:33,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-11 21:53:33,752 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-11 21:53:33,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48