./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 648a34748ee6f317001c61f0628c2e00b2100c77ff87e7d85b52ec2f91d6d096 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:05:51,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:05:51,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 23:05:51,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:05:51,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:05:51,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:05:51,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:05:51,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:05:51,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:05:51,774 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:05:51,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:05:51,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:05:51,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:05:51,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:05:51,774 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:05:51,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 23:05:51,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:05:51,776 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:51,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:05:51,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:51,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:05:51,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:05:51,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:05:51,778 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 648a34748ee6f317001c61f0628c2e00b2100c77ff87e7d85b52ec2f91d6d096 [2024-12-01 23:05:52,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:05:52,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:05:52,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:05:52,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:05:52,035 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:05:52,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2024-12-01 23:05:54,837 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/data/45acba307/1062c1834c664dba8460e37b199a5fd7/FLAG3db23ce76 [2024-12-01 23:05:55,065 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:05:55,065 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2024-12-01 23:05:55,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/data/45acba307/1062c1834c664dba8460e37b199a5fd7/FLAG3db23ce76 [2024-12-01 23:05:55,091 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/data/45acba307/1062c1834c664dba8460e37b199a5fd7 [2024-12-01 23:05:55,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:05:55,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:05:55,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:05:55,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:05:55,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:05:55,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487bc4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55, skipping insertion in model container [2024-12-01 23:05:55,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:05:55,330 WARN L250 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_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c[16824,16837] [2024-12-01 23:05:55,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:05:55,345 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:05:55,401 WARN L250 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_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c[16824,16837] [2024-12-01 23:05:55,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:05:55,416 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:05:55,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55 WrapperNode [2024-12-01 23:05:55,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:05:55,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:05:55,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:05:55,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:05:55,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,466 INFO L138 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 452 [2024-12-01 23:05:55,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:05:55,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:05:55,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:05:55,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:05:55,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,496 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 23:05:55,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,506 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:05:55,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:05:55,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:05:55,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:05:55,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:55,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:05:55,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:05:55,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:05:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:05:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:05:55,677 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:05:55,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:05:56,238 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-12-01 23:05:56,238 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:05:56,249 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:05:56,249 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-01 23:05:56,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:56 BoogieIcfgContainer [2024-12-01 23:05:56,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:05:56,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:05:56,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:05:56,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:05:56,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:05:55" (1/3) ... [2024-12-01 23:05:56,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c7946b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:05:56, skipping insertion in model container [2024-12-01 23:05:56,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55" (2/3) ... [2024-12-01 23:05:56,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c7946b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:05:56, skipping insertion in model container [2024-12-01 23:05:56,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:56" (3/3) ... [2024-12-01 23:05:56,258 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2024-12-01 23:05:56,271 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:05:56,274 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c that has 1 procedures, 121 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 23:05:56,323 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:05:56,334 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7058f962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:05:56,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 23:05:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 120 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-01 23:05:56,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:56,344 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:56,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:56,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash -640658878, now seen corresponding path program 1 times [2024-12-01 23:05:56,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:56,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932365326] [2024-12-01 23:05:56,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:56,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:56,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:56,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932365326] [2024-12-01 23:05:56,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932365326] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:56,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:56,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:05:56,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017182739] [2024-12-01 23:05:56,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:56,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:05:56,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:56,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:05:56,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:05:56,791 INFO L87 Difference]: Start difference. First operand has 121 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 120 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:56,929 INFO L93 Difference]: Finished difference Result 199 states and 334 transitions. [2024-12-01 23:05:56,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:05:56,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-12-01 23:05:56,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:56,940 INFO L225 Difference]: With dead ends: 199 [2024-12-01 23:05:56,940 INFO L226 Difference]: Without dead ends: 117 [2024-12-01 23:05:56,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:05:56,946 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:56,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 770 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:05:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-12-01 23:05:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-12-01 23:05:56,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.3879310344827587) internal successors, (161), 116 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:56,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 161 transitions. [2024-12-01 23:05:56,980 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 161 transitions. Word has length 38 [2024-12-01 23:05:56,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:56,980 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 161 transitions. [2024-12-01 23:05:56,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:56,981 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 161 transitions. [2024-12-01 23:05:56,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-01 23:05:56,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:56,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:56,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:05:56,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:56,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:56,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1837386936, now seen corresponding path program 1 times [2024-12-01 23:05:56,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:56,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352375352] [2024-12-01 23:05:56,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:56,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:57,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:57,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352375352] [2024-12-01 23:05:57,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352375352] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:57,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:57,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:57,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693800953] [2024-12-01 23:05:57,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:57,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:57,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:57,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:57,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:57,139 INFO L87 Difference]: Start difference. First operand 117 states and 161 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:57,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:57,191 INFO L93 Difference]: Finished difference Result 249 states and 375 transitions. [2024-12-01 23:05:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:57,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-01 23:05:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:57,193 INFO L225 Difference]: With dead ends: 249 [2024-12-01 23:05:57,194 INFO L226 Difference]: Without dead ends: 179 [2024-12-01 23:05:57,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:57,195 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 93 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:57,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 343 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-01 23:05:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2024-12-01 23:05:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.4715909090909092) internal successors, (259), 176 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 259 transitions. [2024-12-01 23:05:57,207 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 259 transitions. Word has length 78 [2024-12-01 23:05:57,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:57,207 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 259 transitions. [2024-12-01 23:05:57,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:57,207 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 259 transitions. [2024-12-01 23:05:57,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-01 23:05:57,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:57,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:57,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:05:57,209 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:57,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1238069497, now seen corresponding path program 1 times [2024-12-01 23:05:57,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:57,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667691546] [2024-12-01 23:05:57,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:57,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:57,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:57,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667691546] [2024-12-01 23:05:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667691546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:57,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:57,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:05:57,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866415738] [2024-12-01 23:05:57,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:57,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:05:57,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:57,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:05:57,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:05:57,525 INFO L87 Difference]: Start difference. First operand 177 states and 259 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:57,786 INFO L93 Difference]: Finished difference Result 1087 states and 1743 transitions. [2024-12-01 23:05:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:05:57,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-01 23:05:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:57,793 INFO L225 Difference]: With dead ends: 1087 [2024-12-01 23:05:57,793 INFO L226 Difference]: Without dead ends: 957 [2024-12-01 23:05:57,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:05:57,795 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 2095 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:57,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 1163 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:05:57,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-12-01 23:05:57,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 305. [2024-12-01 23:05:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.5328947368421053) internal successors, (466), 304 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 466 transitions. [2024-12-01 23:05:57,827 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 466 transitions. Word has length 78 [2024-12-01 23:05:57,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:57,827 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 466 transitions. [2024-12-01 23:05:57,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:57,828 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 466 transitions. [2024-12-01 23:05:57,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-01 23:05:57,830 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:57,830 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:57,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:05:57,830 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:57,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:57,831 INFO L85 PathProgramCache]: Analyzing trace with hash -657874447, now seen corresponding path program 1 times [2024-12-01 23:05:57,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:57,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879793526] [2024-12-01 23:05:57,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:57,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:58,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:58,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:58,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879793526] [2024-12-01 23:05:58,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879793526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:58,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:58,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:05:58,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581880760] [2024-12-01 23:05:58,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:58,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:05:58,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:58,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:05:58,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:05:58,220 INFO L87 Difference]: Start difference. First operand 305 states and 466 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:58,246 INFO L93 Difference]: Finished difference Result 319 states and 483 transitions. [2024-12-01 23:05:58,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:05:58,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-01 23:05:58,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:58,248 INFO L225 Difference]: With dead ends: 319 [2024-12-01 23:05:58,248 INFO L226 Difference]: Without dead ends: 317 [2024-12-01 23:05:58,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:05:58,249 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:58,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:58,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-12-01 23:05:58,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-12-01 23:05:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.5126582278481013) internal successors, (478), 316 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2024-12-01 23:05:58,262 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 79 [2024-12-01 23:05:58,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:58,262 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2024-12-01 23:05:58,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,263 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2024-12-01 23:05:58,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-01 23:05:58,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:58,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:58,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:05:58,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:58,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:58,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1133307345, now seen corresponding path program 1 times [2024-12-01 23:05:58,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:58,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573815820] [2024-12-01 23:05:58,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:58,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:58,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:58,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573815820] [2024-12-01 23:05:58,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573815820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:58,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:58,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:58,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836750610] [2024-12-01 23:05:58,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:58,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:58,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:58,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:58,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:58,394 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:58,443 INFO L93 Difference]: Finished difference Result 827 states and 1290 transitions. [2024-12-01 23:05:58,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:58,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-01 23:05:58,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:58,446 INFO L225 Difference]: With dead ends: 827 [2024-12-01 23:05:58,447 INFO L226 Difference]: Without dead ends: 557 [2024-12-01 23:05:58,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:58,448 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 74 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:58,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 272 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:58,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-01 23:05:58,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-12-01 23:05:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 554 states have (on average 1.5415162454873645) internal successors, (854), 554 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 854 transitions. [2024-12-01 23:05:58,472 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 854 transitions. Word has length 80 [2024-12-01 23:05:58,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:58,472 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 854 transitions. [2024-12-01 23:05:58,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 854 transitions. [2024-12-01 23:05:58,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-01 23:05:58,473 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:58,474 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:58,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:05:58,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:58,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1419717291, now seen corresponding path program 1 times [2024-12-01 23:05:58,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:58,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086458655] [2024-12-01 23:05:58,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:58,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:58,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086458655] [2024-12-01 23:05:58,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086458655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:58,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:58,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:58,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018496906] [2024-12-01 23:05:58,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:58,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:58,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:58,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:58,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:58,574 INFO L87 Difference]: Start difference. First operand 555 states and 854 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:58,613 INFO L93 Difference]: Finished difference Result 1070 states and 1672 transitions. [2024-12-01 23:05:58,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:58,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-01 23:05:58,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:58,617 INFO L225 Difference]: With dead ends: 1070 [2024-12-01 23:05:58,617 INFO L226 Difference]: Without dead ends: 800 [2024-12-01 23:05:58,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:58,619 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 101 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:58,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 368 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:58,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-12-01 23:05:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 798. [2024-12-01 23:05:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.5495608531994982) internal successors, (1235), 797 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1235 transitions. [2024-12-01 23:05:58,650 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1235 transitions. Word has length 80 [2024-12-01 23:05:58,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:58,650 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1235 transitions. [2024-12-01 23:05:58,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,651 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1235 transitions. [2024-12-01 23:05:58,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-01 23:05:58,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:58,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:58,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:05:58,652 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:58,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash -261321110, now seen corresponding path program 1 times [2024-12-01 23:05:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:58,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903686798] [2024-12-01 23:05:58,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:58,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:58,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:58,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903686798] [2024-12-01 23:05:58,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903686798] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:58,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:58,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:58,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230333747] [2024-12-01 23:05:58,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:58,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:58,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:58,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:58,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:58,742 INFO L87 Difference]: Start difference. First operand 798 states and 1235 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:58,795 INFO L93 Difference]: Finished difference Result 2198 states and 3437 transitions. [2024-12-01 23:05:58,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:58,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-01 23:05:58,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:58,801 INFO L225 Difference]: With dead ends: 2198 [2024-12-01 23:05:58,801 INFO L226 Difference]: Without dead ends: 1450 [2024-12-01 23:05:58,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:58,803 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 81 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:58,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 324 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:58,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-12-01 23:05:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1448. [2024-12-01 23:05:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 1.5473393227366967) internal successors, (2239), 1447 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2239 transitions. [2024-12-01 23:05:58,858 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2239 transitions. Word has length 81 [2024-12-01 23:05:58,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:58,859 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2239 transitions. [2024-12-01 23:05:58,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:58,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2239 transitions. [2024-12-01 23:05:58,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-01 23:05:58,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:58,860 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:58,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:05:58,860 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:58,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2062010038, now seen corresponding path program 1 times [2024-12-01 23:05:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:58,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660235565] [2024-12-01 23:05:58,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:58,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:58,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:58,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660235565] [2024-12-01 23:05:58,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660235565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:58,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:58,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:58,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174844956] [2024-12-01 23:05:58,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:58,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:58,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:58,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:58,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:58,948 INFO L87 Difference]: Start difference. First operand 1448 states and 2239 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:59,030 INFO L93 Difference]: Finished difference Result 4052 states and 6281 transitions. [2024-12-01 23:05:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-01 23:05:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:59,041 INFO L225 Difference]: With dead ends: 4052 [2024-12-01 23:05:59,041 INFO L226 Difference]: Without dead ends: 2654 [2024-12-01 23:05:59,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:59,044 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 85 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:59,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 337 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2024-12-01 23:05:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2652. [2024-12-01 23:05:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 2651 states have (on average 1.5341380611090154) internal successors, (4067), 2651 states have internal predecessors, (4067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 4067 transitions. [2024-12-01 23:05:59,160 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 4067 transitions. Word has length 81 [2024-12-01 23:05:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:59,160 INFO L471 AbstractCegarLoop]: Abstraction has 2652 states and 4067 transitions. [2024-12-01 23:05:59,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 4067 transitions. [2024-12-01 23:05:59,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-01 23:05:59,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:59,161 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:59,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:05:59,161 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:59,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:59,162 INFO L85 PathProgramCache]: Analyzing trace with hash 875787306, now seen corresponding path program 1 times [2024-12-01 23:05:59,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:59,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388440407] [2024-12-01 23:05:59,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:59,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:59,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:59,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388440407] [2024-12-01 23:05:59,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388440407] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:59,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:59,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:59,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801680386] [2024-12-01 23:05:59,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:59,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:59,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:59,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:59,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:59,250 INFO L87 Difference]: Start difference. First operand 2652 states and 4067 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:59,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:59,375 INFO L93 Difference]: Finished difference Result 7472 states and 11429 transitions. [2024-12-01 23:05:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:59,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-01 23:05:59,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:59,396 INFO L225 Difference]: With dead ends: 7472 [2024-12-01 23:05:59,396 INFO L226 Difference]: Without dead ends: 4870 [2024-12-01 23:05:59,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:59,400 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 89 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:59,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 350 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:59,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2024-12-01 23:05:59,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4868. [2024-12-01 23:05:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4868 states, 4867 states have (on average 1.5128415861927265) internal successors, (7363), 4867 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 7363 transitions. [2024-12-01 23:05:59,610 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 7363 transitions. Word has length 81 [2024-12-01 23:05:59,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:05:59,610 INFO L471 AbstractCegarLoop]: Abstraction has 4868 states and 7363 transitions. [2024-12-01 23:05:59,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 7363 transitions. [2024-12-01 23:05:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-01 23:05:59,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:59,611 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:59,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:05:59,611 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:05:59,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:59,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1130849814, now seen corresponding path program 1 times [2024-12-01 23:05:59,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:59,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503702133] [2024-12-01 23:05:59,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:59,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:05:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:05:59,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:05:59,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503702133] [2024-12-01 23:05:59,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503702133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:05:59,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:05:59,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:05:59,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596596225] [2024-12-01 23:05:59,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:05:59,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:05:59,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:05:59,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:05:59,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:59,693 INFO L87 Difference]: Start difference. First operand 4868 states and 7363 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:05:59,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:05:59,893 INFO L93 Difference]: Finished difference Result 13736 states and 20645 transitions. [2024-12-01 23:05:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:05:59,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-01 23:05:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:05:59,926 INFO L225 Difference]: With dead ends: 13736 [2024-12-01 23:05:59,926 INFO L226 Difference]: Without dead ends: 8918 [2024-12-01 23:05:59,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:05:59,933 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 97 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:05:59,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 366 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:05:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8918 states. [2024-12-01 23:06:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8918 to 8916. [2024-12-01 23:06:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8916 states, 8915 states have (on average 1.4845765563656759) internal successors, (13235), 8915 states have internal predecessors, (13235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8916 states to 8916 states and 13235 transitions. [2024-12-01 23:06:00,176 INFO L78 Accepts]: Start accepts. Automaton has 8916 states and 13235 transitions. Word has length 81 [2024-12-01 23:06:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:00,177 INFO L471 AbstractCegarLoop]: Abstraction has 8916 states and 13235 transitions. [2024-12-01 23:06:00,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8916 states and 13235 transitions. [2024-12-01 23:06:00,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-01 23:06:00,183 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:00,184 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:00,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 23:06:00,184 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:00,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:00,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1697669339, now seen corresponding path program 1 times [2024-12-01 23:06:00,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:00,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618549497] [2024-12-01 23:06:00,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:00,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:00,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:00,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618549497] [2024-12-01 23:06:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618549497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:00,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:00,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:06:00,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475981569] [2024-12-01 23:06:00,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:00,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:06:00,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:00,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:06:00,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:00,361 INFO L87 Difference]: Start difference. First operand 8916 states and 13235 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:00,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:00,521 INFO L93 Difference]: Finished difference Result 17784 states and 26421 transitions. [2024-12-01 23:06:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:06:00,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-01 23:06:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:00,546 INFO L225 Difference]: With dead ends: 17784 [2024-12-01 23:06:00,547 INFO L226 Difference]: Without dead ends: 8918 [2024-12-01 23:06:00,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:00,554 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 78 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:00,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:06:00,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8918 states. [2024-12-01 23:06:00,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8918 to 8916. [2024-12-01 23:06:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8916 states, 8915 states have (on average 1.4738081884464387) internal successors, (13139), 8915 states have internal predecessors, (13139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8916 states to 8916 states and 13139 transitions. [2024-12-01 23:06:00,805 INFO L78 Accepts]: Start accepts. Automaton has 8916 states and 13139 transitions. Word has length 112 [2024-12-01 23:06:00,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:00,805 INFO L471 AbstractCegarLoop]: Abstraction has 8916 states and 13139 transitions. [2024-12-01 23:06:00,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8916 states and 13139 transitions. [2024-12-01 23:06:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-01 23:06:00,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:00,808 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:00,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 23:06:00,808 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:00,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:00,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2130808924, now seen corresponding path program 1 times [2024-12-01 23:06:00,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:00,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839521386] [2024-12-01 23:06:00,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:00,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:00,920 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:00,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:00,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839521386] [2024-12-01 23:06:00,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839521386] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:00,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:00,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:06:00,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098690524] [2024-12-01 23:06:00,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:00,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:06:00,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:00,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:06:00,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:00,922 INFO L87 Difference]: Start difference. First operand 8916 states and 13139 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:01,011 INFO L93 Difference]: Finished difference Result 13352 states and 19685 transitions. [2024-12-01 23:06:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:06:01,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-01 23:06:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:01,021 INFO L225 Difference]: With dead ends: 13352 [2024-12-01 23:06:01,021 INFO L226 Difference]: Without dead ends: 4486 [2024-12-01 23:06:01,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:01,026 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 72 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:01,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 337 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:06:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2024-12-01 23:06:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 4484. [2024-12-01 23:06:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4484 states, 4483 states have (on average 1.4604059781396386) internal successors, (6547), 4483 states have internal predecessors, (6547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 6547 transitions. [2024-12-01 23:06:01,125 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 6547 transitions. Word has length 112 [2024-12-01 23:06:01,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:01,125 INFO L471 AbstractCegarLoop]: Abstraction has 4484 states and 6547 transitions. [2024-12-01 23:06:01,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 6547 transitions. [2024-12-01 23:06:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-01 23:06:01,129 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:01,129 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:01,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 23:06:01,129 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:01,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:01,130 INFO L85 PathProgramCache]: Analyzing trace with hash -731304157, now seen corresponding path program 1 times [2024-12-01 23:06:01,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:01,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781632241] [2024-12-01 23:06:01,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:01,237 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:01,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:01,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781632241] [2024-12-01 23:06:01,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781632241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:01,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:01,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:06:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119529732] [2024-12-01 23:06:01,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:01,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:06:01,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:01,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:06:01,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:01,240 INFO L87 Difference]: Start difference. First operand 4484 states and 6547 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:01,295 INFO L93 Difference]: Finished difference Result 6704 states and 9797 transitions. [2024-12-01 23:06:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:06:01,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-01 23:06:01,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:01,299 INFO L225 Difference]: With dead ends: 6704 [2024-12-01 23:06:01,299 INFO L226 Difference]: Without dead ends: 2270 [2024-12-01 23:06:01,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:01,302 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 66 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:01,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 318 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:06:01,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2024-12-01 23:06:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2268. [2024-12-01 23:06:01,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 2267 states have (on average 1.4446404940449933) internal successors, (3275), 2267 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3275 transitions. [2024-12-01 23:06:01,347 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3275 transitions. Word has length 112 [2024-12-01 23:06:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:01,348 INFO L471 AbstractCegarLoop]: Abstraction has 2268 states and 3275 transitions. [2024-12-01 23:06:01,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3275 transitions. [2024-12-01 23:06:01,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-01 23:06:01,349 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:01,349 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:01,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 23:06:01,350 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:01,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:01,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2078639650, now seen corresponding path program 1 times [2024-12-01 23:06:01,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:01,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183767981] [2024-12-01 23:06:01,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:01,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:01,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:01,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183767981] [2024-12-01 23:06:01,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183767981] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:01,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:01,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:06:01,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104034012] [2024-12-01 23:06:01,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:01,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:06:01,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:01,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:06:01,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:01,462 INFO L87 Difference]: Start difference. First operand 2268 states and 3275 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:01,493 INFO L93 Difference]: Finished difference Result 3380 states and 4889 transitions. [2024-12-01 23:06:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:06:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-01 23:06:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:01,497 INFO L225 Difference]: With dead ends: 3380 [2024-12-01 23:06:01,497 INFO L226 Difference]: Without dead ends: 1162 [2024-12-01 23:06:01,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:01,499 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 60 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:01,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 299 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:06:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-12-01 23:06:01,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1160. [2024-12-01 23:06:01,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1159 states have (on average 1.4245038826574634) internal successors, (1651), 1159 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1651 transitions. [2024-12-01 23:06:01,523 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1651 transitions. Word has length 112 [2024-12-01 23:06:01,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:01,523 INFO L471 AbstractCegarLoop]: Abstraction has 1160 states and 1651 transitions. [2024-12-01 23:06:01,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1651 transitions. [2024-12-01 23:06:01,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-01 23:06:01,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:01,525 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:01,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 23:06:01,525 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:01,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1830079327, now seen corresponding path program 1 times [2024-12-01 23:06:01,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:01,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628382950] [2024-12-01 23:06:01,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-01 23:06:01,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:01,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628382950] [2024-12-01 23:06:01,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628382950] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:06:01,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142577898] [2024-12-01 23:06:01,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:01,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:06:01,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:06:01,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:06:01,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 23:06:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:01,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-01 23:06:01,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:06:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:02,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:06:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:03,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142577898] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:06:03,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:06:03,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 8] total 14 [2024-12-01 23:06:03,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804389140] [2024-12-01 23:06:03,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:06:03,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-01 23:06:03,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:03,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-01 23:06:03,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-12-01 23:06:03,812 INFO L87 Difference]: Start difference. First operand 1160 states and 1651 transitions. Second operand has 14 states, 14 states have (on average 23.214285714285715) internal successors, (325), 14 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:04,638 INFO L93 Difference]: Finished difference Result 5316 states and 7627 transitions. [2024-12-01 23:06:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-01 23:06:04,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 23.214285714285715) internal successors, (325), 14 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-01 23:06:04,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:04,646 INFO L225 Difference]: With dead ends: 5316 [2024-12-01 23:06:04,646 INFO L226 Difference]: Without dead ends: 4554 [2024-12-01 23:06:04,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=396, Invalid=1496, Unknown=0, NotChecked=0, Total=1892 [2024-12-01 23:06:04,648 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 1216 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:04,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 2136 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:06:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2024-12-01 23:06:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4540. [2024-12-01 23:06:04,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4540 states, 4539 states have (on average 1.421238158184622) internal successors, (6451), 4539 states have internal predecessors, (6451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 6451 transitions. [2024-12-01 23:06:04,725 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 6451 transitions. Word has length 112 [2024-12-01 23:06:04,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:04,725 INFO L471 AbstractCegarLoop]: Abstraction has 4540 states and 6451 transitions. [2024-12-01 23:06:04,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.214285714285715) internal successors, (325), 14 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 6451 transitions. [2024-12-01 23:06:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-01 23:06:04,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:04,727 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:04,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 23:06:04,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:06:04,927 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:04,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash 888385077, now seen corresponding path program 1 times [2024-12-01 23:06:04,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:04,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495983973] [2024-12-01 23:06:04,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-01 23:06:05,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:05,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495983973] [2024-12-01 23:06:05,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495983973] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:05,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:05,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:06:05,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252257712] [2024-12-01 23:06:05,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:05,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:06:05,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:05,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:06:05,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:06:05,175 INFO L87 Difference]: Start difference. First operand 4540 states and 6451 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:05,582 INFO L93 Difference]: Finished difference Result 18218 states and 26064 transitions. [2024-12-01 23:06:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:06:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-01 23:06:05,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:05,619 INFO L225 Difference]: With dead ends: 18218 [2024-12-01 23:06:05,619 INFO L226 Difference]: Without dead ends: 15888 [2024-12-01 23:06:05,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:06:05,624 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 1249 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:05,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1627 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:06:05,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15888 states. [2024-12-01 23:06:05,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15888 to 6760. [2024-12-01 23:06:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6760 states, 6759 states have (on average 1.4189968930315136) internal successors, (9591), 6759 states have internal predecessors, (9591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:05,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 9591 transitions. [2024-12-01 23:06:05,851 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 9591 transitions. Word has length 113 [2024-12-01 23:06:05,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:05,851 INFO L471 AbstractCegarLoop]: Abstraction has 6760 states and 9591 transitions. [2024-12-01 23:06:05,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:05,851 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 9591 transitions. [2024-12-01 23:06:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-01 23:06:05,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:05,853 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:05,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 23:06:05,853 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:05,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:05,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1338226423, now seen corresponding path program 1 times [2024-12-01 23:06:05,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:05,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628369438] [2024-12-01 23:06:05,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:05,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-01 23:06:06,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:06,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628369438] [2024-12-01 23:06:06,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628369438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:06,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:06,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:06:06,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341012646] [2024-12-01 23:06:06,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:06,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:06:06,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:06,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:06:06,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:06:06,085 INFO L87 Difference]: Start difference. First operand 6760 states and 9591 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:06,571 INFO L93 Difference]: Finished difference Result 20438 states and 29204 transitions. [2024-12-01 23:06:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:06:06,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-01 23:06:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:06,595 INFO L225 Difference]: With dead ends: 20438 [2024-12-01 23:06:06,595 INFO L226 Difference]: Without dead ends: 18108 [2024-12-01 23:06:06,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:06:06,600 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 1303 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:06,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 1472 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:06:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18108 states. [2024-12-01 23:06:06,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18108 to 8980. [2024-12-01 23:06:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 1.4178639046664439) internal successors, (12731), 8979 states have internal predecessors, (12731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 12731 transitions. [2024-12-01 23:06:06,847 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 12731 transitions. Word has length 113 [2024-12-01 23:06:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:06,847 INFO L471 AbstractCegarLoop]: Abstraction has 8980 states and 12731 transitions. [2024-12-01 23:06:06,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 12731 transitions. [2024-12-01 23:06:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-01 23:06:06,848 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:06,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:06,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 23:06:06,849 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:06,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1276481351, now seen corresponding path program 1 times [2024-12-01 23:06:06,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:06,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928425572] [2024-12-01 23:06:06,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:06,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:06,999 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-01 23:06:06,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:07,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928425572] [2024-12-01 23:06:07,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928425572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:07,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:07,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:06:07,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776045933] [2024-12-01 23:06:07,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:07,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:06:07,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:07,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:06:07,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:06:07,001 INFO L87 Difference]: Start difference. First operand 8980 states and 12731 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:07,452 INFO L93 Difference]: Finished difference Result 22658 states and 32344 transitions. [2024-12-01 23:06:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:06:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-01 23:06:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:07,473 INFO L225 Difference]: With dead ends: 22658 [2024-12-01 23:06:07,474 INFO L226 Difference]: Without dead ends: 20328 [2024-12-01 23:06:07,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:06:07,479 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 1517 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:07,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1411 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:06:07,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20328 states. [2024-12-01 23:06:07,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20328 to 11200. [2024-12-01 23:06:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11200 states, 11199 states have (on average 1.4171801053665505) internal successors, (15871), 11199 states have internal predecessors, (15871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11200 states to 11200 states and 15871 transitions. [2024-12-01 23:06:07,819 INFO L78 Accepts]: Start accepts. Automaton has 11200 states and 15871 transitions. Word has length 113 [2024-12-01 23:06:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:07,819 INFO L471 AbstractCegarLoop]: Abstraction has 11200 states and 15871 transitions. [2024-12-01 23:06:07,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:07,819 INFO L276 IsEmpty]: Start isEmpty. Operand 11200 states and 15871 transitions. [2024-12-01 23:06:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-01 23:06:07,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:07,821 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:07,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 23:06:07,822 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:07,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:07,822 INFO L85 PathProgramCache]: Analyzing trace with hash 813561661, now seen corresponding path program 1 times [2024-12-01 23:06:07,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:07,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102326230] [2024-12-01 23:06:07,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:07,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-01 23:06:08,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:08,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102326230] [2024-12-01 23:06:08,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102326230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:08,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:08,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:06:08,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532932148] [2024-12-01 23:06:08,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:08,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:06:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:08,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:06:08,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:06:08,021 INFO L87 Difference]: Start difference. First operand 11200 states and 15871 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:08,627 INFO L93 Difference]: Finished difference Result 24878 states and 35484 transitions. [2024-12-01 23:06:08,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:06:08,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-01 23:06:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:08,643 INFO L225 Difference]: With dead ends: 24878 [2024-12-01 23:06:08,644 INFO L226 Difference]: Without dead ends: 22548 [2024-12-01 23:06:08,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:06:08,649 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 1387 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:08,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 1571 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:06:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22548 states. [2024-12-01 23:06:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22548 to 13420. [2024-12-01 23:06:09,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13420 states, 13419 states have (on average 1.4167225575676279) internal successors, (19011), 13419 states have internal predecessors, (19011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13420 states to 13420 states and 19011 transitions. [2024-12-01 23:06:09,028 INFO L78 Accepts]: Start accepts. Automaton has 13420 states and 19011 transitions. Word has length 113 [2024-12-01 23:06:09,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:09,029 INFO L471 AbstractCegarLoop]: Abstraction has 13420 states and 19011 transitions. [2024-12-01 23:06:09,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:09,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13420 states and 19011 transitions. [2024-12-01 23:06:09,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-01 23:06:09,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:09,031 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:09,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-01 23:06:09,031 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:09,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:09,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1301783685, now seen corresponding path program 1 times [2024-12-01 23:06:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:09,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172721686] [2024-12-01 23:06:09,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-01 23:06:09,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172721686] [2024-12-01 23:06:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172721686] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:09,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:09,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:06:09,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105045151] [2024-12-01 23:06:09,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:09,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:06:09,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:09,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:06:09,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:06:09,236 INFO L87 Difference]: Start difference. First operand 13420 states and 19011 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:09,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:09,768 INFO L93 Difference]: Finished difference Result 27098 states and 38624 transitions. [2024-12-01 23:06:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:06:09,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-01 23:06:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:09,793 INFO L225 Difference]: With dead ends: 27098 [2024-12-01 23:06:09,793 INFO L226 Difference]: Without dead ends: 24768 [2024-12-01 23:06:09,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:06:09,801 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 1165 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:09,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1831 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:06:09,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24768 states. [2024-12-01 23:06:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24768 to 15640. [2024-12-01 23:06:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15640 states, 15639 states have (on average 1.4163949101604962) internal successors, (22151), 15639 states have internal predecessors, (22151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15640 states to 15640 states and 22151 transitions. [2024-12-01 23:06:10,273 INFO L78 Accepts]: Start accepts. Automaton has 15640 states and 22151 transitions. Word has length 113 [2024-12-01 23:06:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:10,273 INFO L471 AbstractCegarLoop]: Abstraction has 15640 states and 22151 transitions. [2024-12-01 23:06:10,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 15640 states and 22151 transitions. [2024-12-01 23:06:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-01 23:06:10,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:10,275 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:10,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 23:06:10,275 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:10,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:10,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1164065132, now seen corresponding path program 1 times [2024-12-01 23:06:10,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:10,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083642246] [2024-12-01 23:06:10,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:10,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-01 23:06:10,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:10,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083642246] [2024-12-01 23:06:10,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083642246] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:06:10,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601083411] [2024-12-01 23:06:10,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:10,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:06:10,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:10,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:06:10,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:06:10,535 INFO L87 Difference]: Start difference. First operand 15640 states and 22151 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:11,283 INFO L93 Difference]: Finished difference Result 28790 states and 40986 transitions. [2024-12-01 23:06:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:06:11,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-01 23:06:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:11,306 INFO L225 Difference]: With dead ends: 28790 [2024-12-01 23:06:11,306 INFO L226 Difference]: Without dead ends: 26804 [2024-12-01 23:06:11,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:06:11,313 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 1241 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:11,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 1984 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:06:11,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26804 states. [2024-12-01 23:06:11,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26804 to 17676. [2024-12-01 23:06:11,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17676 states, 17675 states have (on average 1.4156152758132956) internal successors, (25021), 17675 states have internal predecessors, (25021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17676 states to 17676 states and 25021 transitions. [2024-12-01 23:06:11,730 INFO L78 Accepts]: Start accepts. Automaton has 17676 states and 25021 transitions. Word has length 113 [2024-12-01 23:06:11,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:11,731 INFO L471 AbstractCegarLoop]: Abstraction has 17676 states and 25021 transitions. [2024-12-01 23:06:11,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 17676 states and 25021 transitions. [2024-12-01 23:06:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-01 23:06:11,732 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:11,732 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:11,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 23:06:11,732 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:11,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash -978315769, now seen corresponding path program 1 times [2024-12-01 23:06:11,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:11,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800509795] [2024-12-01 23:06:11,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:11,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:11,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:11,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:11,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800509795] [2024-12-01 23:06:11,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800509795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:06:11,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:06:11,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:06:11,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950744033] [2024-12-01 23:06:11,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:06:11,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:06:11,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:11,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:06:11,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:11,815 INFO L87 Difference]: Start difference. First operand 17676 states and 25021 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:11,973 INFO L93 Difference]: Finished difference Result 24988 states and 35187 transitions. [2024-12-01 23:06:11,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:06:11,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-12-01 23:06:11,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:11,980 INFO L225 Difference]: With dead ends: 24988 [2024-12-01 23:06:11,980 INFO L226 Difference]: Without dead ends: 7362 [2024-12-01 23:06:11,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:06:11,990 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 40 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:11,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 300 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:06:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7362 states. [2024-12-01 23:06:12,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7362 to 6720. [2024-12-01 23:06:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6720 states, 6719 states have (on average 1.3999107009971723) internal successors, (9406), 6719 states have internal predecessors, (9406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:12,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6720 states to 6720 states and 9406 transitions. [2024-12-01 23:06:12,171 INFO L78 Accepts]: Start accepts. Automaton has 6720 states and 9406 transitions. Word has length 116 [2024-12-01 23:06:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:12,172 INFO L471 AbstractCegarLoop]: Abstraction has 6720 states and 9406 transitions. [2024-12-01 23:06:12,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:12,172 INFO L276 IsEmpty]: Start isEmpty. Operand 6720 states and 9406 transitions. [2024-12-01 23:06:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-01 23:06:12,173 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:12,173 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:12,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-01 23:06:12,173 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:12,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:12,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1477059718, now seen corresponding path program 1 times [2024-12-01 23:06:12,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:12,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372973648] [2024-12-01 23:06:12,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:12,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:12,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:12,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372973648] [2024-12-01 23:06:12,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372973648] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:06:12,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721685642] [2024-12-01 23:06:12,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:12,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:06:12,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:06:12,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:06:12,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 23:06:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:12,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 23:06:12,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:06:13,506 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:13,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:06:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:14,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721685642] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:06:14,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:06:14,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-01 23:06:14,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346868449] [2024-12-01 23:06:14,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:06:14,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-01 23:06:14,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:14,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-01 23:06:14,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-12-01 23:06:14,952 INFO L87 Difference]: Start difference. First operand 6720 states and 9406 transitions. Second operand has 22 states, 22 states have (on average 13.227272727272727) internal successors, (291), 21 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:15,763 INFO L93 Difference]: Finished difference Result 23531 states and 33088 transitions. [2024-12-01 23:06:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 23:06:15,763 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.227272727272727) internal successors, (291), 21 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-12-01 23:06:15,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:15,775 INFO L225 Difference]: With dead ends: 23531 [2024-12-01 23:06:15,775 INFO L226 Difference]: Without dead ends: 17357 [2024-12-01 23:06:15,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2024-12-01 23:06:15,781 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 1287 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:15,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1143 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 23:06:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17357 states. [2024-12-01 23:06:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17357 to 16399. [2024-12-01 23:06:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16399 states, 16398 states have (on average 1.3959629223075984) internal successors, (22891), 16398 states have internal predecessors, (22891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16399 states to 16399 states and 22891 transitions. [2024-12-01 23:06:16,145 INFO L78 Accepts]: Start accepts. Automaton has 16399 states and 22891 transitions. Word has length 116 [2024-12-01 23:06:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:16,145 INFO L471 AbstractCegarLoop]: Abstraction has 16399 states and 22891 transitions. [2024-12-01 23:06:16,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.227272727272727) internal successors, (291), 21 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 16399 states and 22891 transitions. [2024-12-01 23:06:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-01 23:06:16,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:16,147 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:16,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 23:06:16,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-01 23:06:16,347 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:16,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:16,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1402236302, now seen corresponding path program 1 times [2024-12-01 23:06:16,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:16,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997747859] [2024-12-01 23:06:16,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:16,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:17,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:17,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997747859] [2024-12-01 23:06:17,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997747859] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:06:17,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299272516] [2024-12-01 23:06:17,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:17,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:06:17,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:06:17,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:06:17,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 23:06:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:17,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 23:06:17,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:06:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:18,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:06:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:19,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299272516] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:06:19,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:06:19,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-12-01 23:06:19,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277969216] [2024-12-01 23:06:19,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:06:19,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-01 23:06:19,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:19,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-01 23:06:19,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2024-12-01 23:06:19,500 INFO L87 Difference]: Start difference. First operand 16399 states and 22891 transitions. Second operand has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:21,049 INFO L93 Difference]: Finished difference Result 68837 states and 96351 transitions. [2024-12-01 23:06:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 23:06:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-12-01 23:06:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:21,086 INFO L225 Difference]: With dead ends: 68837 [2024-12-01 23:06:21,086 INFO L226 Difference]: Without dead ends: 53219 [2024-12-01 23:06:21,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2024-12-01 23:06:21,101 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 3104 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:21,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3104 Valid, 1109 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:06:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53219 states. [2024-12-01 23:06:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53219 to 36893. [2024-12-01 23:06:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36893 states, 36892 states have (on average 1.3907893310202755) internal successors, (51309), 36892 states have internal predecessors, (51309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36893 states to 36893 states and 51309 transitions. [2024-12-01 23:06:22,017 INFO L78 Accepts]: Start accepts. Automaton has 36893 states and 51309 transitions. Word has length 116 [2024-12-01 23:06:22,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:22,017 INFO L471 AbstractCegarLoop]: Abstraction has 36893 states and 51309 transitions. [2024-12-01 23:06:22,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.653846153846153) internal successors, (303), 25 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 36893 states and 51309 transitions. [2024-12-01 23:06:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-01 23:06:22,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:22,019 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:22,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 23:06:22,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-01 23:06:22,220 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:22,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash 162063053, now seen corresponding path program 1 times [2024-12-01 23:06:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:22,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132165302] [2024-12-01 23:06:22,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:22,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:23,113 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:23,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:23,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132165302] [2024-12-01 23:06:23,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132165302] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:06:23,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479104234] [2024-12-01 23:06:23,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:23,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:06:23,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:06:23,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:06:23,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 23:06:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:23,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 23:06:23,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:06:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:23,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:06:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:25,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479104234] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:06:25,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:06:25,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-01 23:06:25,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664472849] [2024-12-01 23:06:25,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:06:25,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-01 23:06:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:25,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-01 23:06:25,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-12-01 23:06:25,107 INFO L87 Difference]: Start difference. First operand 36893 states and 51309 transitions. Second operand has 28 states, 28 states have (on average 10.178571428571429) internal successors, (285), 27 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:32,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:06:32,308 INFO L93 Difference]: Finished difference Result 271731 states and 373523 transitions. [2024-12-01 23:06:32,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-12-01 23:06:32,309 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.178571428571429) internal successors, (285), 27 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-12-01 23:06:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:06:32,493 INFO L225 Difference]: With dead ends: 271731 [2024-12-01 23:06:32,493 INFO L226 Difference]: Without dead ends: 235853 [2024-12-01 23:06:32,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1156, Invalid=4544, Unknown=0, NotChecked=0, Total=5700 [2024-12-01 23:06:32,527 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 3550 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3550 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-01 23:06:32,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3550 Valid, 1676 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-01 23:06:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235853 states. [2024-12-01 23:06:37,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235853 to 158824. [2024-12-01 23:06:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158824 states, 158823 states have (on average 1.3710923480856048) internal successors, (217761), 158823 states have internal predecessors, (217761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158824 states to 158824 states and 217761 transitions. [2024-12-01 23:06:38,132 INFO L78 Accepts]: Start accepts. Automaton has 158824 states and 217761 transitions. Word has length 116 [2024-12-01 23:06:38,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:06:38,133 INFO L471 AbstractCegarLoop]: Abstraction has 158824 states and 217761 transitions. [2024-12-01 23:06:38,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.178571428571429) internal successors, (285), 27 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:06:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand 158824 states and 217761 transitions. [2024-12-01 23:06:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-01 23:06:38,136 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:06:38,136 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:06:38,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-01 23:06:38,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:06:38,337 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:06:38,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:06:38,337 INFO L85 PathProgramCache]: Analyzing trace with hash -252110124, now seen corresponding path program 1 times [2024-12-01 23:06:38,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:06:38,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000900910] [2024-12-01 23:06:38,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:38,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:06:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:39,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:06:39,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000900910] [2024-12-01 23:06:39,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000900910] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:06:39,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341849513] [2024-12-01 23:06:39,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:06:39,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:06:39,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:06:39,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:06:39,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 23:06:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:06:40,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-01 23:06:40,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:06:40,672 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:40,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:06:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:06:41,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341849513] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:06:41,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:06:41,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-12-01 23:06:41,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097425594] [2024-12-01 23:06:41,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:06:41,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-01 23:06:41,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:06:41,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-01 23:06:41,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=968, Unknown=0, NotChecked=0, Total=1122 [2024-12-01 23:06:41,936 INFO L87 Difference]: Start difference. First operand 158824 states and 217761 transitions. Second operand has 34 states, 34 states have (on average 9.117647058823529) internal successors, (310), 34 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:07:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:07:04,271 INFO L93 Difference]: Finished difference Result 979991 states and 1347678 transitions. [2024-12-01 23:07:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-12-01 23:07:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.117647058823529) internal successors, (310), 34 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-12-01 23:07:04,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:07:05,195 INFO L225 Difference]: With dead ends: 979991 [2024-12-01 23:07:05,196 INFO L226 Difference]: Without dead ends: 823431 [2024-12-01 23:07:05,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2424 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1402, Invalid=7340, Unknown=0, NotChecked=0, Total=8742 [2024-12-01 23:07:05,632 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 4462 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 2769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-01 23:07:05,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 3121 Invalid, 2769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-01 23:07:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823431 states. [2024-12-01 23:07:27,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823431 to 694476. [2024-12-01 23:07:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694476 states, 694475 states have (on average 1.3544965621512652) internal successors, (940664), 694475 states have internal predecessors, (940664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:07:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694476 states to 694476 states and 940664 transitions. [2024-12-01 23:07:30,516 INFO L78 Accepts]: Start accepts. Automaton has 694476 states and 940664 transitions. Word has length 117 [2024-12-01 23:07:30,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:07:30,516 INFO L471 AbstractCegarLoop]: Abstraction has 694476 states and 940664 transitions. [2024-12-01 23:07:30,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.117647058823529) internal successors, (310), 34 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:07:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 694476 states and 940664 transitions. [2024-12-01 23:07:30,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 23:07:30,525 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:07:30,526 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:07:30,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 23:07:30,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a127fa4-e6e9-46f8-bea9-3b48fd7efad2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:07:30,726 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:07:30,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:07:30,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1725225204, now seen corresponding path program 1 times [2024-12-01 23:07:30,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:07:30,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865490763] [2024-12-01 23:07:30,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:07:30,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:07:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:07:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:07:30,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:07:30,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865490763] [2024-12-01 23:07:30,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865490763] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:07:30,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:07:30,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:07:30,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122860026] [2024-12-01 23:07:30,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:07:30,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:07:30,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:07:30,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:07:30,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:07:30,792 INFO L87 Difference]: Start difference. First operand 694476 states and 940664 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:07:55,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:07:55,644 INFO L93 Difference]: Finished difference Result 1696254 states and 2302944 transitions. [2024-12-01 23:07:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:07:55,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-12-01 23:07:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:07:57,139 INFO L225 Difference]: With dead ends: 1696254 [2024-12-01 23:07:57,139 INFO L226 Difference]: Without dead ends: 1023389 [2024-12-01 23:07:57,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:07:57,978 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 78 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:07:57,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 346 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:07:58,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023389 states. [2024-12-01 23:08:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023389 to 1023387. [2024-12-01 23:08:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023387 states, 1023386 states have (on average 1.3472003720981136) internal successors, (1378706), 1023386 states have internal predecessors, (1378706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:08:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023387 states to 1023387 states and 1378706 transitions. [2024-12-01 23:08:32,995 INFO L78 Accepts]: Start accepts. Automaton has 1023387 states and 1378706 transitions. Word has length 118 [2024-12-01 23:08:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:08:32,996 INFO L471 AbstractCegarLoop]: Abstraction has 1023387 states and 1378706 transitions. [2024-12-01 23:08:32,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:08:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1023387 states and 1378706 transitions. [2024-12-01 23:08:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 23:08:33,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:08:33,031 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:08:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 23:08:33,032 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:08:33,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:08:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -923655040, now seen corresponding path program 1 times [2024-12-01 23:08:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:08:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941125345] [2024-12-01 23:08:33,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:08:33,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:08:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:08:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:08:33,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:08:33,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941125345] [2024-12-01 23:08:33,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941125345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:08:33,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:08:33,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:08:33,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376273119] [2024-12-01 23:08:33,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:08:33,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:08:33,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:08:33,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:08:33,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:08:33,133 INFO L87 Difference]: Start difference. First operand 1023387 states and 1378706 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:09:19,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:09:19,902 INFO L93 Difference]: Finished difference Result 2886749 states and 3873691 transitions. [2024-12-01 23:09:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:09:19,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-12-01 23:09:19,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:09:21,908 INFO L225 Difference]: With dead ends: 2886749 [2024-12-01 23:09:21,908 INFO L226 Difference]: Without dead ends: 1871213 [2024-12-01 23:09:22,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:09:22,775 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 73 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:09:22,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 318 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:09:23,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871213 states.