./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-2.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_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB --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 62385e6bfd84118ba01d2d49adc14a21533d9eb0487ec52569a5af9428684a45 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:10:27,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:10:27,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:10:27,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:10:27,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:10:27,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:10:27,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:10:27,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:10:27,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:10:27,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:10:27,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:10:27,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:10:27,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:10:27,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:10:27,858 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:10:27,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:10:27,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:10:27,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:10:27,859 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:10:27,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:10:27,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:10:27,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:10:27,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:10:27,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:10:27,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:10:27,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:10:27,860 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:10:27,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:10:27,860 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:10:27,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:27,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:27,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:10:27,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:10:27,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:10:27,862 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_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 62385e6bfd84118ba01d2d49adc14a21533d9eb0487ec52569a5af9428684a45 [2024-11-27 20:10:28,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:10:28,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:10:28,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:10:28,199 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:10:28,200 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:10:28,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-2.c [2024-11-27 20:10:31,313 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/data/db2cd4192/2d7d41e449594d9698c18a0e4994fa9b/FLAG34b795ed9 [2024-11-27 20:10:31,845 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:10:31,845 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/sv-benchmarks/c/xcsp/aim-100-6-0-sat-2.c [2024-11-27 20:10:31,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/data/db2cd4192/2d7d41e449594d9698c18a0e4994fa9b/FLAG34b795ed9 [2024-11-27 20:10:31,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/data/db2cd4192/2d7d41e449594d9698c18a0e4994fa9b [2024-11-27 20:10:31,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:10:31,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:10:31,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:10:31,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:10:31,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:10:31,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:10:31" (1/1) ... [2024-11-27 20:10:31,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d72200b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:31, skipping insertion in model container [2024-11-27 20:10:31,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:10:31" (1/1) ... [2024-11-27 20:10:31,958 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:10:32,510 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_24d1101f-8647-455e-bd07-d3dfb94c35b1/sv-benchmarks/c/xcsp/aim-100-6-0-sat-2.c[43811,43824] [2024-11-27 20:10:32,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:10:32,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:10:32,852 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_24d1101f-8647-455e-bd07-d3dfb94c35b1/sv-benchmarks/c/xcsp/aim-100-6-0-sat-2.c[43811,43824] [2024-11-27 20:10:32,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:10:32,910 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:10:32,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32 WrapperNode [2024-11-27 20:10:32,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:10:32,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:10:32,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:10:32,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:10:32,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:33,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:33,797 INFO L138 Inliner]: procedures = 13, calls = 766, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11195 [2024-11-27 20:10:33,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:10:33,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:10:33,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:10:33,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:10:33,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:33,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:33,904 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,053 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:10:34,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:10:34,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:10:34,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:10:34,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:10:34,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (1/1) ... [2024-11-27 20:10:34,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:34,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:34,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:10:34,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:10:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:10:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:10:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:10:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:10:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-27 20:10:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-27 20:10:35,313 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:10:35,316 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:10:50,896 INFO L? ?]: Removed 2348 outVars from TransFormulas that were not future-live. [2024-11-27 20:10:50,897 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:10:51,031 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:10:51,033 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:10:51,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:10:51 BoogieIcfgContainer [2024-11-27 20:10:51,033 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:10:51,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:10:51,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:10:51,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:10:51,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:10:31" (1/3) ... [2024-11-27 20:10:51,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f69b162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:10:51, skipping insertion in model container [2024-11-27 20:10:51,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:32" (2/3) ... [2024-11-27 20:10:51,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f69b162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:10:51, skipping insertion in model container [2024-11-27 20:10:51,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:10:51" (3/3) ... [2024-11-27 20:10:51,048 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-100-6-0-sat-2.c [2024-11-27 20:10:51,066 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:10:51,068 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-100-6-0-sat-2.c that has 2 procedures, 5149 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-27 20:10:51,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:10:51,322 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;@531bc713, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:10:51,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:10:51,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 5149 states, 4387 states have (on average 1.5657624800547072) internal successors, (6869), 4388 states have internal predecessors, (6869), 759 states have call successors, (759), 1 states have call predecessors, (759), 1 states have return successors, (759), 759 states have call predecessors, (759), 759 states have call successors, (759) [2024-11-27 20:10:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5698 [2024-11-27 20:10:51,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:51,765 INFO L218 NwaCegarLoop]: trace histogram [759, 759, 759, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:51,765 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:51,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 322400047, now seen corresponding path program 1 times [2024-11-27 20:10:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:51,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28655819] [2024-11-27 20:10:51,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:51,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 0 proven. 1516 refuted. 0 times theorem prover too weak. 1149128 trivial. 0 not checked. [2024-11-27 20:11:00,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:00,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28655819] [2024-11-27 20:11:00,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28655819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:00,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425328076] [2024-11-27 20:11:00,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:00,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:00,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:00,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:00,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:11:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:02,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 11336 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:11:02,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1516 proven. 0 refuted. 0 times theorem prover too weak. 1149128 trivial. 0 not checked. [2024-11-27 20:11:03,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:11:03,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425328076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:11:03,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:11:03,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:11:03,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427070561] [2024-11-27 20:11:03,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:11:03,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:11:03,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:03,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:11:03,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:11:03,553 INFO L87 Difference]: Start difference. First operand has 5149 states, 4387 states have (on average 1.5657624800547072) internal successors, (6869), 4388 states have internal predecessors, (6869), 759 states have call successors, (759), 1 states have call predecessors, (759), 1 states have return successors, (759), 759 states have call predecessors, (759), 759 states have call successors, (759) Second operand has 2 states, 2 states have (on average 953.5) internal successors, (1907), 2 states have internal predecessors, (1907), 2 states have call successors, (759), 2 states have call predecessors, (759), 1 states have return successors, (759), 1 states have call predecessors, (759), 2 states have call successors, (759) [2024-11-27 20:11:03,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:03,944 INFO L93 Difference]: Finished difference Result 10292 states and 17527 transitions. [2024-11-27 20:11:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:11:03,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 953.5) internal successors, (1907), 2 states have internal predecessors, (1907), 2 states have call successors, (759), 2 states have call predecessors, (759), 1 states have return successors, (759), 1 states have call predecessors, (759), 2 states have call successors, (759) Word has length 5697 [2024-11-27 20:11:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:03,991 INFO L225 Difference]: With dead ends: 10292 [2024-11-27 20:11:03,991 INFO L226 Difference]: Without dead ends: 5146 [2024-11-27 20:11:04,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5698 GetRequests, 5698 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:11:04,012 INFO L435 NwaCegarLoop]: 8383 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8383 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:04,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8383 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:11:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2024-11-27 20:11:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 5146. [2024-11-27 20:11:04,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 4385 states have (on average 1.5655644241733182) internal successors, (6865), 4385 states have internal predecessors, (6865), 759 states have call successors, (759), 1 states have call predecessors, (759), 1 states have return successors, (759), 759 states have call predecessors, (759), 759 states have call successors, (759) [2024-11-27 20:11:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 8383 transitions. [2024-11-27 20:11:04,800 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 8383 transitions. Word has length 5697 [2024-11-27 20:11:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:04,802 INFO L471 AbstractCegarLoop]: Abstraction has 5146 states and 8383 transitions. [2024-11-27 20:11:04,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 953.5) internal successors, (1907), 2 states have internal predecessors, (1907), 2 states have call successors, (759), 2 states have call predecessors, (759), 1 states have return successors, (759), 1 states have call predecessors, (759), 2 states have call successors, (759) [2024-11-27 20:11:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 8383 transitions. [2024-11-27 20:11:05,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5698 [2024-11-27 20:11:05,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:05,137 INFO L218 NwaCegarLoop]: trace histogram [759, 759, 759, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:05,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:11:05,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:11:05,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:11:05,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:05,346 INFO L85 PathProgramCache]: Analyzing trace with hash 123318045, now seen corresponding path program 1 times [2024-11-27 20:11:05,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:05,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25669193] [2024-11-27 20:11:05,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:05,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:04,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1188 proven. 16836 refuted. 0 times theorem prover too weak. 1132620 trivial. 0 not checked. [2024-11-27 20:13:04,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:04,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25669193] [2024-11-27 20:13:04,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25669193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:13:04,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440529177] [2024-11-27 20:13:04,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:04,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:04,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:04,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:13:04,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:13:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:06,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 11336 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-27 20:13:06,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 503184 proven. 10560 refuted. 0 times theorem prover too weak. 636900 trivial. 0 not checked. [2024-11-27 20:13:34,962 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:12,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1632 proven. 16392 refuted. 0 times theorem prover too weak. 1132620 trivial. 0 not checked. [2024-11-27 20:14:12,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440529177] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:14:12,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:14:12,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 38 [2024-11-27 20:14:12,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726731108] [2024-11-27 20:14:12,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:14:12,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-27 20:14:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:12,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-27 20:14:12,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1182, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 20:14:12,354 INFO L87 Difference]: Start difference. First operand 5146 states and 8383 transitions. Second operand has 38 states, 26 states have (on average 165.96153846153845) internal successors, (4315), 27 states have internal predecessors, (4315), 32 states have call successors, (2016), 2 states have call predecessors, (2016), 3 states have return successors, (2019), 31 states have call predecessors, (2019), 32 states have call successors, (2019) [2024-11-27 20:16:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:16:34,460 INFO L93 Difference]: Finished difference Result 129045 states and 210562 transitions. [2024-11-27 20:16:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-27 20:16:34,469 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 26 states have (on average 165.96153846153845) internal successors, (4315), 27 states have internal predecessors, (4315), 32 states have call successors, (2016), 2 states have call predecessors, (2016), 3 states have return successors, (2019), 31 states have call predecessors, (2019), 32 states have call successors, (2019) Word has length 5697 [2024-11-27 20:16:34,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:16:35,131 INFO L225 Difference]: With dead ends: 129045 [2024-11-27 20:16:35,132 INFO L226 Difference]: Without dead ends: 125095 [2024-11-27 20:16:35,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11503 GetRequests, 11391 SyntacticMatches, 7 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2690 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=3598, Invalid=7744, Unknown=0, NotChecked=0, Total=11342 [2024-11-27 20:16:35,188 INFO L435 NwaCegarLoop]: 32113 mSDtfsCounter, 286376 mSDsluCounter, 321269 mSDsCounter, 0 mSdLazyCounter, 67676 mSolverCounterSat, 22349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286414 SdHoareTripleChecker+Valid, 353382 SdHoareTripleChecker+Invalid, 90025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.5s SdHoareTripleChecker+Time, 22349 IncrementalHoareTripleChecker+Valid, 67676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:16:35,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286414 Valid, 353382 Invalid, 90025 Unknown, 0 Unchecked, 1.5s Time], IncrementalHoareTripleChecker [22349 Valid, 67676 Invalid, 0 Unknown, 0 Unchecked, 91.8s Time] [2024-11-27 20:16:35,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125095 states. [2024-11-27 20:16:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125095 to 87566. [2024-11-27 20:16:52,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87566 states, 77050 states have (on average 1.5773783257624918) internal successors, (121537), 77050 states have internal predecessors, (121537), 10514 states have call successors, (10514), 1 states have call predecessors, (10514), 1 states have return successors, (10514), 10514 states have call predecessors, (10514), 10514 states have call successors, (10514) [2024-11-27 20:16:53,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87566 states to 87566 states and 142565 transitions. [2024-11-27 20:16:53,435 INFO L78 Accepts]: Start accepts. Automaton has 87566 states and 142565 transitions. Word has length 5697 [2024-11-27 20:16:53,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:16:53,452 INFO L471 AbstractCegarLoop]: Abstraction has 87566 states and 142565 transitions. [2024-11-27 20:16:53,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 26 states have (on average 165.96153846153845) internal successors, (4315), 27 states have internal predecessors, (4315), 32 states have call successors, (2016), 2 states have call predecessors, (2016), 3 states have return successors, (2019), 31 states have call predecessors, (2019), 32 states have call successors, (2019) [2024-11-27 20:16:53,456 INFO L276 IsEmpty]: Start isEmpty. Operand 87566 states and 142565 transitions. [2024-11-27 20:16:54,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5700 [2024-11-27 20:16:54,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:16:54,524 INFO L218 NwaCegarLoop]: trace histogram [759, 759, 759, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:16:54,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:16:54,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-27 20:16:54,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:16:54,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1406550253, now seen corresponding path program 1 times [2024-11-27 20:16:54,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:16:54,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144213700] [2024-11-27 20:16:54,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 312 proven. 4230 refuted. 0 times theorem prover too weak. 1146102 trivial. 0 not checked. [2024-11-27 20:17:47,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:47,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144213700] [2024-11-27 20:17:47,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144213700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:47,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127190676] [2024-11-27 20:17:47,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:47,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:47,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:47,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:47,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d1101f-8647-455e-bd07-d3dfb94c35b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:17:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:49,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 11342 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:17:50,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:18:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 537360 proven. 4032 refuted. 0 times theorem prover too weak. 609252 trivial. 0 not checked. [2024-11-27 20:18:02,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:18:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1680 proven. 7380 refuted. 0 times theorem prover too weak. 1141584 trivial. 0 not checked. [2024-11-27 20:18:17,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127190676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:18:17,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:18:17,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 20 [2024-11-27 20:18:17,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668999869] [2024-11-27 20:18:17,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:18:17,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 20:18:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:17,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:18:17,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:18:17,439 INFO L87 Difference]: Start difference. First operand 87566 states and 142565 transitions. Second operand has 20 states, 16 states have (on average 202.8125) internal successors, (3245), 16 states have internal predecessors, (3245), 16 states have call successors, (1623), 2 states have call predecessors, (1623), 3 states have return successors, (1625), 16 states have call predecessors, (1625), 16 states have call successors, (1625) [2024-11-27 20:20:11,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:20:11,431 INFO L93 Difference]: Finished difference Result 1484294 states and 2418964 transitions. [2024-11-27 20:20:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-27 20:20:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 202.8125) internal successors, (3245), 16 states have internal predecessors, (3245), 16 states have call successors, (1623), 2 states have call predecessors, (1623), 3 states have return successors, (1625), 16 states have call predecessors, (1625), 16 states have call successors, (1625) Word has length 5699 [2024-11-27 20:20:11,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:20:15,200 INFO L225 Difference]: With dead ends: 1484294 [2024-11-27 20:20:15,200 INFO L226 Difference]: Without dead ends: 1003766 [2024-11-27 20:20:16,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11438 GetRequests, 11388 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=701, Invalid=1651, Unknown=0, NotChecked=0, Total=2352 [2024-11-27 20:20:16,021 INFO L435 NwaCegarLoop]: 29367 mSDtfsCounter, 245163 mSDsluCounter, 199656 mSDsCounter, 0 mSdLazyCounter, 37899 mSolverCounterSat, 18502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245235 SdHoareTripleChecker+Valid, 229023 SdHoareTripleChecker+Invalid, 56401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 18502 IncrementalHoareTripleChecker+Valid, 37899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:20:16,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245235 Valid, 229023 Invalid, 56401 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [18502 Valid, 37899 Invalid, 0 Unknown, 0 Unchecked, 40.6s Time] [2024-11-27 20:20:16,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003766 states.