./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 a36341ca3b6735c9c3bbbcd02a53abde3dd875a5cb707d1c87b09a60c1d040c7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:12:28,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:12:28,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:12:28,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:12:28,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:12:28,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:12:28,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:12:28,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:12:28,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:12:28,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:12:28,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:12:28,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:12:28,802 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:12:28,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:12:28,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:12:28,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:12:28,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:12:28,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:12:28,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:12:28,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:12:28,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:12:28,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:12:28,809 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:12:28,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:12:28,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:12:28,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:12:28,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:12:28,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:12:28,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:12:28,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:12:28,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:12:28,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:12:28,816 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:12:28,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:12:28,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:12:28,817 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:12:28,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:12:28,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:12:28,819 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:12:28,819 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a36341ca3b6735c9c3bbbcd02a53abde3dd875a5cb707d1c87b09a60c1d040c7 [2023-11-06 23:12:29,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:12:29,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:12:29,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:12:29,179 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:12:29,180 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:12:29,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i [2023-11-06 23:12:32,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:12:33,175 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:12:33,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i [2023-11-06 23:12:33,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/data/0d85d8f28/aae1d6f3ffd44f7c846b7d29b9546d70/FLAGd5413aacf [2023-11-06 23:12:33,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/data/0d85d8f28/aae1d6f3ffd44f7c846b7d29b9546d70 [2023-11-06 23:12:33,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:12:33,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:12:33,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:12:33,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:12:33,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:12:33,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58990720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33, skipping insertion in model container [2023-11-06 23:12:33,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:12:33,539 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i[917,930] [2023-11-06 23:12:33,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:12:33,665 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:12:33,681 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-38.i[917,930] [2023-11-06 23:12:33,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:12:33,775 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:12:33,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33 WrapperNode [2023-11-06 23:12:33,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:12:33,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:12:33,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:12:33,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:12:33,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,892 INFO L138 Inliner]: procedures = 29, calls = 180, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 471 [2023-11-06 23:12:33,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:12:33,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:12:33,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:12:33,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:12:33,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:33,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:34,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:34,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:12:34,024 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:12:34,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:12:34,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:12:34,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (1/1) ... [2023-11-06 23:12:34,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:12:34,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:34,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:12:34,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37704ee2-a1bd-4f21-8e32-334ff9fe2c71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:12:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:12:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 23:12:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:12:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 23:12:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:12:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-06 23:12:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:12:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:12:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:12:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:12:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:12:34,355 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:12:34,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:12:35,143 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:12:35,159 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:12:35,160 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:12:35,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:35 BoogieIcfgContainer [2023-11-06 23:12:35,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:12:35,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:12:35,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:12:35,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:12:35,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:12:33" (1/3) ... [2023-11-06 23:12:35,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72436e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:12:35, skipping insertion in model container [2023-11-06 23:12:35,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:33" (2/3) ... [2023-11-06 23:12:35,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72436e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:12:35, skipping insertion in model container [2023-11-06 23:12:35,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:35" (3/3) ... [2023-11-06 23:12:35,184 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-38.i [2023-11-06 23:12:35,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:12:35,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:12:35,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:12:35,319 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@328a8feb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:12:35,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:12:35,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 96 states have internal predecessors, (131), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:12:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:12:35,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:35,362 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:35,362 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:12:35,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:35,381 INFO L85 PathProgramCache]: Analyzing trace with hash -105780081, now seen corresponding path program 1 times [2023-11-06 23:12:35,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:35,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733722964] [2023-11-06 23:12:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:35,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:12:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:12:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:12:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:12:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:12:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:12:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:12:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:12:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:12:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:12:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:12:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:12:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:12:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:12:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:12:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:12:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:12:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:12:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:12:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:12:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:12:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:12:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:12:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:12:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:12:36,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:36,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733722964] [2023-11-06 23:12:36,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733722964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:36,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:36,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:12:36,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484361939] [2023-11-06 23:12:36,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:36,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:12:36,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:36,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:12:36,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:12:36,373 INFO L87 Difference]: Start difference. First operand has 122 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 96 states have internal predecessors, (131), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-06 23:12:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:36,425 INFO L93 Difference]: Finished difference Result 237 states and 376 transitions. [2023-11-06 23:12:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:12:36,428 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2023-11-06 23:12:36,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:36,440 INFO L225 Difference]: With dead ends: 237 [2023-11-06 23:12:36,440 INFO L226 Difference]: Without dead ends: 118 [2023-11-06 23:12:36,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:12:36,450 INFO L413 NwaCegarLoop]: 172 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, 172 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 [2023-11-06 23:12:36,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:36,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-06 23:12:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-06 23:12:36,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 92 states have (on average 1.3478260869565217) internal successors, (124), 92 states have internal predecessors, (124), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:12:36,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2023-11-06 23:12:36,529 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 172 transitions. Word has length 184 [2023-11-06 23:12:36,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:36,530 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 172 transitions. [2023-11-06 23:12:36,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-06 23:12:36,532 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 172 transitions. [2023-11-06 23:12:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:12:36,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:36,539 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:36,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:12:36,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:12:36,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:36,542 INFO L85 PathProgramCache]: Analyzing trace with hash -539706313, now seen corresponding path program 1 times [2023-11-06 23:12:36,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:36,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65310582] [2023-11-06 23:12:36,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:36,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:12:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:12:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:12:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:12:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:12:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:36,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:12:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:12:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:12:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:12:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:12:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:12:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:12:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:12:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:12:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:12:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:12:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:12:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:12:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:12:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:12:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:12:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:12:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:12:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:12:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:12:37,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:37,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65310582] [2023-11-06 23:12:37,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65310582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:37,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:37,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:37,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21512312] [2023-11-06 23:12:37,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:37,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:37,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:37,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:37,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:37,116 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-06 23:12:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:37,210 INFO L93 Difference]: Finished difference Result 239 states and 350 transitions. [2023-11-06 23:12:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:12:37,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2023-11-06 23:12:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:37,215 INFO L225 Difference]: With dead ends: 239 [2023-11-06 23:12:37,219 INFO L226 Difference]: Without dead ends: 124 [2023-11-06 23:12:37,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:37,227 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 10 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:37,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 501 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:37,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-06 23:12:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2023-11-06 23:12:37,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 94 states have (on average 1.3404255319148937) internal successors, (126), 94 states have internal predecessors, (126), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:12:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 174 transitions. [2023-11-06 23:12:37,255 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 174 transitions. Word has length 184 [2023-11-06 23:12:37,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:37,256 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 174 transitions. [2023-11-06 23:12:37,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-06 23:12:37,256 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 174 transitions. [2023-11-06 23:12:37,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:12:37,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:37,261 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:37,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:12:37,262 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:12:37,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash -966260811, now seen corresponding path program 1 times [2023-11-06 23:12:37,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:37,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473360448] [2023-11-06 23:12:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:37,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:12:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:12:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:12:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:12:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:12:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:12:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:12:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:12:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:12:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:12:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:12:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:12:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:12:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:12:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:12:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:12:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:12:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:12:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:12:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:12:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:12:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:12:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:12:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:12:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:12:37,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:37,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473360448] [2023-11-06 23:12:37,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473360448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:37,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:37,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:37,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561389603] [2023-11-06 23:12:37,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:37,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:37,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:37,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:37,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:37,756 INFO L87 Difference]: Start difference. First operand 120 states and 174 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-06 23:12:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:37,868 INFO L93 Difference]: Finished difference Result 271 states and 396 transitions. [2023-11-06 23:12:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:12:37,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 184 [2023-11-06 23:12:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:37,874 INFO L225 Difference]: With dead ends: 271 [2023-11-06 23:12:37,874 INFO L226 Difference]: Without dead ends: 154 [2023-11-06 23:12:37,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:37,877 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 72 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:37,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 520 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:37,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-06 23:12:37,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 122. [2023-11-06 23:12:37,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 96 states have internal predecessors, (128), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:12:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 176 transitions. [2023-11-06 23:12:37,905 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 176 transitions. Word has length 184 [2023-11-06 23:12:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:37,907 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 176 transitions. [2023-11-06 23:12:37,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-06 23:12:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 176 transitions. [2023-11-06 23:12:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:12:37,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:37,912 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:37,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:12:37,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:12:37,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:37,913 INFO L85 PathProgramCache]: Analyzing trace with hash -286202441, now seen corresponding path program 1 times [2023-11-06 23:12:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:37,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721271594] [2023-11-06 23:12:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:37,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:12:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:12:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:12:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:12:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:12:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:12:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:12:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:12:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:12:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:12:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:12:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:12:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:12:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:12:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:12:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:12:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:12:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:12:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:12:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:12:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:12:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:12:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:12:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:12:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:12:39,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:39,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721271594] [2023-11-06 23:12:39,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721271594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:39,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:39,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:12:39,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894979503] [2023-11-06 23:12:39,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:39,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:12:39,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:39,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:12:39,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:12:39,240 INFO L87 Difference]: Start difference. First operand 122 states and 176 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-06 23:12:39,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:39,766 INFO L93 Difference]: Finished difference Result 278 states and 401 transitions. [2023-11-06 23:12:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:12:39,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 184 [2023-11-06 23:12:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:39,770 INFO L225 Difference]: With dead ends: 278 [2023-11-06 23:12:39,771 INFO L226 Difference]: Without dead ends: 159 [2023-11-06 23:12:39,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:12:39,774 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 194 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:39,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 423 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:12:39,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-06 23:12:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 125. [2023-11-06 23:12:39,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 99 states have (on average 1.3232323232323233) internal successors, (131), 99 states have internal predecessors, (131), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:12:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 179 transitions. [2023-11-06 23:12:39,795 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 179 transitions. Word has length 184 [2023-11-06 23:12:39,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:39,797 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 179 transitions. [2023-11-06 23:12:39,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-06 23:12:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 179 transitions. [2023-11-06 23:12:39,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:12:39,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:39,802 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:39,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:12:39,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:12:39,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:39,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1707832823, now seen corresponding path program 1 times [2023-11-06 23:12:39,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:39,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105199319] [2023-11-06 23:12:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:39,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:12:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:12:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:12:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:12:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:12:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:12:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:12:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:12:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:12:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:12:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:12:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:12:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:12:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:12:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:12:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:12:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:12:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:12:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:12:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:12:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:12:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:12:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:12:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:12:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:53,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:12:53,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:53,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105199319] [2023-11-06 23:12:53,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105199319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:53,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:53,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-06 23:12:53,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126446269] [2023-11-06 23:12:53,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:53,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-06 23:12:53,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:53,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-06 23:12:53,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-06 23:12:53,397 INFO L87 Difference]: Start difference. First operand 125 states and 179 transitions. Second operand has 17 states, 14 states have (on average 4.785714285714286) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:13:04,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:13:04,984 INFO L93 Difference]: Finished difference Result 317 states and 454 transitions. [2023-11-06 23:13:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 23:13:04,986 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.785714285714286) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 184 [2023-11-06 23:13:04,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:13:04,989 INFO L225 Difference]: With dead ends: 317 [2023-11-06 23:13:04,989 INFO L226 Difference]: Without dead ends: 195 [2023-11-06 23:13:04,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2023-11-06 23:13:04,992 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 367 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:13:04,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1028 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-11-06 23:13:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-06 23:13:05,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 142. [2023-11-06 23:13:05,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 116 states have internal predecessors, (155), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:13:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2023-11-06 23:13:05,038 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 184 [2023-11-06 23:13:05,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:13:05,040 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2023-11-06 23:13:05,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.785714285714286) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:13:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2023-11-06 23:13:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:13:05,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:13:05,044 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:05,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:13:05,045 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:13:05,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:13:05,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1121026809, now seen corresponding path program 1 times [2023-11-06 23:13:05,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:13:05,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640906802] [2023-11-06 23:13:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:13:05,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:13:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:13:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:13:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:13:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:13:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:13:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:13:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:13:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:13:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:13:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:13:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:13:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:13:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:13:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:13:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:13:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:13:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:13:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:13:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:13:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:13:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:13:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:13:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:13:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:13:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:13:08,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:13:08,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640906802] [2023-11-06 23:13:08,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640906802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:13:08,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:13:08,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 23:13:08,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377481386] [2023-11-06 23:13:08,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:13:08,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:13:08,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:13:08,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:13:08,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:13:08,418 INFO L87 Difference]: Start difference. First operand 142 states and 203 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-06 23:13:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:13:10,203 INFO L93 Difference]: Finished difference Result 349 states and 499 transitions. [2023-11-06 23:13:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 23:13:10,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 184 [2023-11-06 23:13:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:13:10,211 INFO L225 Difference]: With dead ends: 349 [2023-11-06 23:13:10,213 INFO L226 Difference]: Without dead ends: 210 [2023-11-06 23:13:10,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-06 23:13:10,216 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 598 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:13:10,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 587 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 23:13:10,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-06 23:13:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 155. [2023-11-06 23:13:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 129 states have (on average 1.3333333333333333) internal successors, (172), 129 states have internal predecessors, (172), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:13:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 220 transitions. [2023-11-06 23:13:10,281 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 220 transitions. Word has length 184 [2023-11-06 23:13:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:13:10,283 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 220 transitions. [2023-11-06 23:13:10,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-06 23:13:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 220 transitions. [2023-11-06 23:13:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:13:10,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:13:10,289 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:10,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:13:10,290 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:13:10,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:13:10,290 INFO L85 PathProgramCache]: Analyzing trace with hash 890184373, now seen corresponding path program 1 times [2023-11-06 23:13:10,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:13:10,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276769269] [2023-11-06 23:13:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:13:10,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:13:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:13:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:13:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:13:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:13:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:13:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:13:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:13:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:13:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:13:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:13:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:13:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:13:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:13:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:13:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:13:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:13:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:13:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:13:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:13:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:13:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:13:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:13:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:13:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:13:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:13:14,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:13:14,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276769269] [2023-11-06 23:13:14,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276769269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:13:14,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:13:14,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-06 23:13:14,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378837760] [2023-11-06 23:13:14,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:13:14,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 23:13:14,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:13:14,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 23:13:14,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:13:14,882 INFO L87 Difference]: Start difference. First operand 155 states and 220 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:13:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:13:17,773 INFO L93 Difference]: Finished difference Result 336 states and 477 transitions. [2023-11-06 23:13:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:13:17,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 184 [2023-11-06 23:13:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:13:17,780 INFO L225 Difference]: With dead ends: 336 [2023-11-06 23:13:17,780 INFO L226 Difference]: Without dead ends: 184 [2023-11-06 23:13:17,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-11-06 23:13:17,786 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 402 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:13:17,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 944 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 23:13:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-06 23:13:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 142. [2023-11-06 23:13:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 116 states have (on average 1.3275862068965518) internal successors, (154), 116 states have internal predecessors, (154), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:13:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 202 transitions. [2023-11-06 23:13:17,832 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 202 transitions. Word has length 184 [2023-11-06 23:13:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:13:17,833 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 202 transitions. [2023-11-06 23:13:17,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:13:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 202 transitions. [2023-11-06 23:13:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:13:17,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:13:17,837 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:17,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:13:17,838 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:13:17,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:13:17,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1926687541, now seen corresponding path program 1 times [2023-11-06 23:13:17,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:13:17,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883097926] [2023-11-06 23:13:17,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:13:17,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:13:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:13:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:13:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 23:13:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 23:13:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:13:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 23:13:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:13:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-06 23:13:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 23:13:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:13:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:13:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:13:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:13:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:13:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 23:13:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:13:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:13:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:13:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-06 23:13:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-06 23:13:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 23:13:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-06 23:13:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:13:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:13:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:13:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-06 23:13:21,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:13:21,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883097926] [2023-11-06 23:13:21,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883097926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:13:21,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:13:21,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-06 23:13:21,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920566704] [2023-11-06 23:13:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:13:21,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 23:13:21,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:13:21,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 23:13:21,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-06 23:13:21,152 INFO L87 Difference]: Start difference. First operand 142 states and 202 transitions. Second operand has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-06 23:13:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:13:23,410 INFO L93 Difference]: Finished difference Result 338 states and 481 transitions. [2023-11-06 23:13:23,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:13:23,411 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 184 [2023-11-06 23:13:23,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:13:23,414 INFO L225 Difference]: With dead ends: 338 [2023-11-06 23:13:23,414 INFO L226 Difference]: Without dead ends: 199 [2023-11-06 23:13:23,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-06 23:13:23,416 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 476 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:13:23,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 777 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 23:13:23,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-06 23:13:23,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 144. [2023-11-06 23:13:23,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 118 states have (on average 1.3220338983050848) internal successors, (156), 118 states have internal predecessors, (156), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 23:13:23,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 204 transitions. [2023-11-06 23:13:23,458 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 204 transitions. Word has length 184 [2023-11-06 23:13:23,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:13:23,459 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 204 transitions. [2023-11-06 23:13:23,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-06 23:13:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 204 transitions. [2023-11-06 23:13:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 23:13:23,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:13:23,463 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:23,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 23:13:23,464 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:13:23,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:13:23,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1339881527, now seen corresponding path program 1 times [2023-11-06 23:13:23,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:13:23,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975889617] [2023-11-06 23:13:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:13:23,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:13:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:16:02,313 WARN L293 SmtUtils]: Spent 49.61s on a formula simplification. DAG size of input: 145 DAG size of output: 133 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)