./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-64.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '82402668b8e3e6bc1099650ffea2c85f37237e4249cc993fd95f6102dc824940'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-64.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 82402668b8e3e6bc1099650ffea2c85f37237e4249cc993fd95f6102dc824940 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:56:31,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:56:31,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 08:56:31,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:56:31,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:56:31,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:56:31,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:56:31,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:56:31,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:56:31,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:56:31,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:56:31,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:56:31,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:56:31,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:56:31,600 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:56:31,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:56:31,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:56:31,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:56:31,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 08:56:31,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:56:31,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:56:31,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:56:31,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:56:31,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:56:31,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:56:31,601 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:56:31,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:56:31,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:56:31,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:56:31,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:56:31,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:56:31,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:56:31,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:56:31,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:56:31,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:56:31,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:56:31,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 08:56:31,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 08:56:31,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:56:31,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:56:31,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:56:31,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:56:31,603 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 82402668b8e3e6bc1099650ffea2c85f37237e4249cc993fd95f6102dc824940 [2024-11-07 08:56:31,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:56:31,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:56:31,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:56:31,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:56:31,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:56:31,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-64.i [2024-11-07 08:56:33,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:56:33,655 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:56:33,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-64.i [2024-11-07 08:56:33,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c7853146/34c316a0f5bb47068f0d7f3a76558753/FLAGcfaf3a2b7 [2024-11-07 08:56:33,973 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2c7853146/34c316a0f5bb47068f0d7f3a76558753 [2024-11-07 08:56:33,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:56:33,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:56:33,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:56:33,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:56:33,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:56:33,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:56:33" (1/1) ... [2024-11-07 08:56:33,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c74fffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:33, skipping insertion in model container [2024-11-07 08:56:33,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:56:33" (1/1) ... [2024-11-07 08:56:34,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:56:34,159 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-64.i[915,928] [2024-11-07 08:56:34,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:56:34,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:56:34,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-64.i[915,928] [2024-11-07 08:56:34,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:56:34,296 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:56:34,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34 WrapperNode [2024-11-07 08:56:34,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:56:34,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:56:34,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:56:34,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:56:34,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,338 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 174 [2024-11-07 08:56:34,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:56:34,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:56:34,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:56:34,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:56:34,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,355 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,377 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 08:56:34,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:56:34,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:56:34,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:56:34,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:56:34,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (1/1) ... [2024-11-07 08:56:34,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:56:34,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:56:34,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 08:56:34,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 08:56:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:56:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:56:34,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:56:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 08:56:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:56:34,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:56:34,517 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:56:34,518 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:56:34,819 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-07 08:56:34,819 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:56:34,828 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:56:34,829 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:56:34,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:56:34 BoogieIcfgContainer [2024-11-07 08:56:34,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:56:34,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:56:34,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:56:34,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:56:34,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:56:33" (1/3) ... [2024-11-07 08:56:34,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4791a178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:56:34, skipping insertion in model container [2024-11-07 08:56:34,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:56:34" (2/3) ... [2024-11-07 08:56:34,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4791a178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:56:34, skipping insertion in model container [2024-11-07 08:56:34,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:56:34" (3/3) ... [2024-11-07 08:56:34,841 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-64.i [2024-11-07 08:56:34,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:56:34,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:56:34,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:56:34,920 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;@7a324ff9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:56:34,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:56:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 47 states have internal predecessors, (63), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 08:56:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:56:34,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:56:34,949 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 08:56:34,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:56:34,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:56:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1472419692, now seen corresponding path program 1 times [2024-11-07 08:56:34,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:56:34,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426127403] [2024-11-07 08:56:34,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:56:34,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:56:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:56:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:56:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:56:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:56:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:56:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:56:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:56:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:56:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:56:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:56:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:56:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:56:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:56:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:56:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:56:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:56:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:56:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:56:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:56:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:56:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:56:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:56:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:56:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:56:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:56:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:56:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:56:35,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:56:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426127403] [2024-11-07 08:56:35,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426127403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:56:35,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:56:35,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:56:35,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277786004] [2024-11-07 08:56:35,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:56:35,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:56:35,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:56:35,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:56:35,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:56:35,410 INFO L87 Difference]: Start difference. First operand has 75 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 47 states have internal predecessors, (63), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:56:35,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:56:35,432 INFO L93 Difference]: Finished difference Result 143 states and 250 transitions. [2024-11-07 08:56:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:56:35,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 163 [2024-11-07 08:56:35,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:56:35,439 INFO L225 Difference]: With dead ends: 143 [2024-11-07 08:56:35,439 INFO L226 Difference]: Without dead ends: 71 [2024-11-07 08:56:35,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:56:35,444 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 08:56:35,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:56:35,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-07 08:56:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-07 08:56:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 08:56:35,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 108 transitions. [2024-11-07 08:56:35,487 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 108 transitions. Word has length 163 [2024-11-07 08:56:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:56:35,487 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 108 transitions. [2024-11-07 08:56:35,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-07 08:56:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 108 transitions. [2024-11-07 08:56:35,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:56:35,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:56:35,491 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 08:56:35,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 08:56:35,491 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:56:35,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:56:35,492 INFO L85 PathProgramCache]: Analyzing trace with hash -688375340, now seen corresponding path program 1 times [2024-11-07 08:56:35,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:56:35,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107446943] [2024-11-07 08:56:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:56:35,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:56:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:56:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:56:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:56:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:56:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:56:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:56:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:56:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:56:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:56:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:56:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:56:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:56:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:56:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:56:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:56:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:56:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:56:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:56:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:56:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:56:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:56:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:56:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:56:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:56:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:56:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:56:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:56:38,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:56:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107446943] [2024-11-07 08:56:38,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107446943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:56:38,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:56:38,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 08:56:38,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199176641] [2024-11-07 08:56:38,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:56:38,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 08:56:38,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:56:38,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 08:56:38,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 08:56:38,435 INFO L87 Difference]: Start difference. First operand 71 states and 108 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:56:38,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:56:38,916 INFO L93 Difference]: Finished difference Result 247 states and 378 transitions. [2024-11-07 08:56:38,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 08:56:38,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:56:38,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:56:38,924 INFO L225 Difference]: With dead ends: 247 [2024-11-07 08:56:38,924 INFO L226 Difference]: Without dead ends: 179 [2024-11-07 08:56:38,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 08:56:38,929 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 128 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 08:56:38,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 464 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 08:56:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-07 08:56:38,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 75. [2024-11-07 08:56:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 08:56:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 114 transitions. [2024-11-07 08:56:38,946 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 114 transitions. Word has length 163 [2024-11-07 08:56:38,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:56:38,947 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 114 transitions. [2024-11-07 08:56:38,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:56:38,948 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 114 transitions. [2024-11-07 08:56:38,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 08:56:38,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:56:38,950 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 08:56:38,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 08:56:38,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:56:38,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:56:38,951 INFO L85 PathProgramCache]: Analyzing trace with hash -171222316, now seen corresponding path program 1 times [2024-11-07 08:56:38,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:56:38,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076994667] [2024-11-07 08:56:38,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:56:38,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:56:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:56:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:56:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:56:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:56:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:56:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:56:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:56:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:56:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:56:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:56:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:56:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:56:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:56:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:56:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:56:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:56:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:56:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:56:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:56:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:56:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:56:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:56:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:56:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:56:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:56:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:56:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:56:40,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:56:40,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076994667] [2024-11-07 08:56:40,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076994667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:56:40,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:56:40,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 08:56:40,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897977253] [2024-11-07 08:56:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:56:40,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 08:56:40,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:56:40,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 08:56:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 08:56:40,610 INFO L87 Difference]: Start difference. First operand 75 states and 114 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:56:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:56:40,839 INFO L93 Difference]: Finished difference Result 206 states and 313 transitions. [2024-11-07 08:56:40,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 08:56:40,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-07 08:56:40,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:56:40,841 INFO L225 Difference]: With dead ends: 206 [2024-11-07 08:56:40,841 INFO L226 Difference]: Without dead ends: 134 [2024-11-07 08:56:40,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 08:56:40,842 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 109 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 08:56:40,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 567 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 08:56:40,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-07 08:56:40,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 71. [2024-11-07 08:56:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 08:56:40,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 107 transitions. [2024-11-07 08:56:40,850 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 107 transitions. Word has length 163 [2024-11-07 08:56:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:56:40,851 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 107 transitions. [2024-11-07 08:56:40,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:56:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 107 transitions. [2024-11-07 08:56:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-07 08:56:40,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:56:40,853 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 08:56:40,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 08:56:40,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:56:40,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:56:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash -652193233, now seen corresponding path program 1 times [2024-11-07 08:56:40,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:56:40,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217802188] [2024-11-07 08:56:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:56:40,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:56:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:56:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 08:56:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 08:56:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 08:56:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 08:56:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 08:56:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 08:56:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 08:56:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 08:56:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 08:56:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 08:56:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 08:56:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 08:56:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 08:56:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 08:56:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 08:56:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 08:56:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 08:56:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 08:56:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 08:56:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 08:56:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 08:56:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 08:56:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 08:56:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 08:56:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 08:56:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:56:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-07 08:56:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:56:44,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217802188] [2024-11-07 08:56:44,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217802188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:56:44,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:56:44,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 08:56:44,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957268993] [2024-11-07 08:56:44,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:56:44,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 08:56:44,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:56:44,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 08:56:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-07 08:56:44,380 INFO L87 Difference]: Start difference. First operand 71 states and 107 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:56:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:56:45,259 INFO L93 Difference]: Finished difference Result 315 states and 450 transitions. [2024-11-07 08:56:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 08:56:45,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2024-11-07 08:56:45,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:56:45,261 INFO L225 Difference]: With dead ends: 315 [2024-11-07 08:56:45,261 INFO L226 Difference]: Without dead ends: 247 [2024-11-07 08:56:45,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-07 08:56:45,262 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 311 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 08:56:45,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 335 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 08:56:45,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-07 08:56:45,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 171. [2024-11-07 08:56:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 120 states have (on average 1.3416666666666666) internal successors, (161), 123 states have internal predecessors, (161), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-07 08:56:45,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 253 transitions. [2024-11-07 08:56:45,300 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 253 transitions. Word has length 165 [2024-11-07 08:56:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:56:45,303 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 253 transitions. [2024-11-07 08:56:45,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-07 08:56:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 253 transitions. [2024-11-07 08:56:45,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-07 08:56:45,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:56:45,305 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 08:56:45,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 08:56:45,305 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:56:45,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:56:45,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1045220243, now seen corresponding path program 1 times [2024-11-07 08:56:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:56:45,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694170809] [2024-11-07 08:56:45,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:56:45,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:56:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat