./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.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_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/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_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/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_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/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 13d5722f7df4a2c5167ed4563bf982d5909b4aa38877cadc21e13f19e9d80478 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:13:30,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:13:30,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:13:30,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:13:30,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:13:30,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:13:30,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:13:30,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:13:30,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:13:30,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:13:30,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:13:30,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:13:30,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:13:30,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:13:30,820 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:13:30,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:13:30,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:13:30,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:13:30,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:13:30,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:13:30,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:13:30,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:13:30,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:13:30,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:13:30,825 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:13:30,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:13:30,825 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:13:30,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:13:30,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:13:30,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:13:30,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:13:30,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:13:30,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:13:30,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:13:30,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:13:30,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:13:30,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:13:30,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:13:30,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:13:30,828 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:13:30,828 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:13:30,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:13:30,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:13:30,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:13:30,829 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:13:30,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:13:30,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:13:30,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:13:30,829 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_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/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 -> 13d5722f7df4a2c5167ed4563bf982d5909b4aa38877cadc21e13f19e9d80478 [2024-11-28 05:13:31,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:13:31,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:13:31,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:13:31,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:13:31,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:13:31,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c [2024-11-28 05:13:34,589 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/data/c45ed670d/0468417f796f485c80318bfc6f3be134/FLAGbdf9d4008 [2024-11-28 05:13:35,117 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:13:35,118 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c [2024-11-28 05:13:35,153 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/data/c45ed670d/0468417f796f485c80318bfc6f3be134/FLAGbdf9d4008 [2024-11-28 05:13:35,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/data/c45ed670d/0468417f796f485c80318bfc6f3be134 [2024-11-28 05:13:35,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:13:35,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:13:35,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:13:35,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:13:35,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:13:35,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:35,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657d5eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:35, skipping insertion in model container [2024-11-28 05:13:35,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:13:35" (1/1) ... [2024-11-28 05:13:35,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:13:36,114 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_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c[43733,43746] [2024-11-28 05:13:36,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:13:36,213 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:13:36,523 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_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/sv-benchmarks/c/xcsp/aim-100-6-0-sat-1.c[43733,43746] [2024-11-28 05:13:36,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:13:36,576 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:13:36,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36 WrapperNode [2024-11-28 05:13:36,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:13:36,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:13:36,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:13:36,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:13:36,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:36,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:37,736 INFO L138 Inliner]: procedures = 13, calls = 766, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11155 [2024-11-28 05:13:37,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:13:37,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:13:37,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:13:37,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:13:37,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:37,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:37,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:38,327 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]. [2024-11-28 05:13:38,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:38,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:38,793 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:38,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:39,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:39,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:39,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:39,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:13:39,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:13:39,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:13:39,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:13:39,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (1/1) ... [2024-11-28 05:13:39,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:13:39,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:39,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:39,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:13:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:13:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:13:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:13:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:13:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-28 05:13:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-28 05:13:40,009 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:13:40,012 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:13:58,573 INFO L? ?]: Removed 2333 outVars from TransFormulas that were not future-live. [2024-11-28 05:13:58,573 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:13:58,700 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:13:58,703 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:13:58,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:13:58 BoogieIcfgContainer [2024-11-28 05:13:58,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:13:58,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:13:58,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:13:58,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:13:58,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:13:35" (1/3) ... [2024-11-28 05:13:58,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290edad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:13:58, skipping insertion in model container [2024-11-28 05:13:58,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:13:36" (2/3) ... [2024-11-28 05:13:58,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290edad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:13:58, skipping insertion in model container [2024-11-28 05:13:58,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:13:58" (3/3) ... [2024-11-28 05:13:58,720 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-100-6-0-sat-1.c [2024-11-28 05:13:58,740 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:13:58,744 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-100-6-0-sat-1.c that has 2 procedures, 5134 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 05:13:58,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:13:59,016 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;@15637eb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:13:59,016 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:13:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 5134 states, 4372 states have (on average 1.565416285452882) internal successors, (6844), 4373 states have internal predecessors, (6844), 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) [2024-11-28 05:13:59,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5693 [2024-11-28 05:13:59,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:59,648 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] [2024-11-28 05:13:59,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:59,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1806316416, now seen corresponding path program 1 times [2024-11-28 05:13:59,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:59,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11760184] [2024-11-28 05:13:59,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:59,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:12,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 0 proven. 1516 refuted. 0 times theorem prover too weak. 1149128 trivial. 0 not checked. [2024-11-28 05:14:12,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:12,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11760184] [2024-11-28 05:14:12,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11760184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:12,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905846741] [2024-11-28 05:14:12,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:12,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:12,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:12,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:12,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:14:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:15,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 11321 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:14:16,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1516 proven. 0 refuted. 0 times theorem prover too weak. 1149128 trivial. 0 not checked. [2024-11-28 05:14:16,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:14:16,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905846741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:16,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:14:16,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:14:16,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722803467] [2024-11-28 05:14:16,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:16,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:14:16,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:16,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:14:16,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:14:16,843 INFO L87 Difference]: Start difference. First operand has 5134 states, 4372 states have (on average 1.565416285452882) internal successors, (6844), 4373 states have internal predecessors, (6844), 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 951.0) internal successors, (1902), 2 states have internal predecessors, (1902), 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) [2024-11-28 05:14:17,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:17,387 INFO L93 Difference]: Finished difference Result 10262 states and 17477 transitions. [2024-11-28 05:14:17,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:14:17,394 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 951.0) internal successors, (1902), 2 states have internal predecessors, (1902), 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 5692 [2024-11-28 05:14:17,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:17,467 INFO L225 Difference]: With dead ends: 10262 [2024-11-28 05:14:17,467 INFO L226 Difference]: Without dead ends: 5131 [2024-11-28 05:14:17,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5693 GetRequests, 5693 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:14:17,506 INFO L435 NwaCegarLoop]: 8358 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, 8358 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:17,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:14:17,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2024-11-28 05:14:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5131. [2024-11-28 05:14:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 4370 states have (on average 1.565217391304348) internal successors, (6840), 4370 states have internal predecessors, (6840), 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) [2024-11-28 05:14:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 8358 transitions. [2024-11-28 05:14:19,288 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 8358 transitions. Word has length 5692 [2024-11-28 05:14:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:19,295 INFO L471 AbstractCegarLoop]: Abstraction has 5131 states and 8358 transitions. [2024-11-28 05:14:19,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 951.0) internal successors, (1902), 2 states have internal predecessors, (1902), 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) [2024-11-28 05:14:19,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 8358 transitions. [2024-11-28 05:14:19,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5693 [2024-11-28 05:14:19,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:19,826 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] [2024-11-28 05:14:19,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:14:20,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:20,032 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:20,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2035606162, now seen corresponding path program 1 times [2024-11-28 05:14:20,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:20,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716808863] [2024-11-28 05:14:20,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:20,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 2268 proven. 24624 refuted. 0 times theorem prover too weak. 1123752 trivial. 0 not checked. [2024-11-28 05:16:51,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:51,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716808863] [2024-11-28 05:16:51,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716808863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:51,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649905375] [2024-11-28 05:16:51,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:51,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:51,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:51,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:51,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:16:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:55,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 11321 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 05:16:55,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 71820 proven. 16188 refuted. 0 times theorem prover too weak. 1062636 trivial. 0 not checked. [2024-11-28 05:17:48,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:18:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1260 proven. 16764 refuted. 0 times theorem prover too weak. 1132620 trivial. 0 not checked. [2024-11-28 05:18:31,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649905375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:18:31,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:18:31,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 16, 16] total 45 [2024-11-28 05:18:31,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853358136] [2024-11-28 05:18:31,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:18:31,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-28 05:18:31,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:31,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-28 05:18:31,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1728, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 05:18:31,292 INFO L87 Difference]: Start difference. First operand 5131 states and 8358 transitions. Second operand has 45 states, 29 states have (on average 171.0344827586207) internal successors, (4960), 31 states have internal predecessors, (4960), 40 states have call successors, (2060), 2 states have call predecessors, (2060), 3 states have return successors, (2063), 38 states have call predecessors, (2063), 40 states have call successors, (2063) [2024-11-28 05:22:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:13,067 INFO L93 Difference]: Finished difference Result 182795 states and 297831 transitions. [2024-11-28 05:22:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-28 05:22:13,072 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 29 states have (on average 171.0344827586207) internal successors, (4960), 31 states have internal predecessors, (4960), 40 states have call successors, (2060), 2 states have call predecessors, (2060), 3 states have return successors, (2063), 38 states have call predecessors, (2063), 40 states have call successors, (2063) Word has length 5692 [2024-11-28 05:22:13,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:14,150 INFO L225 Difference]: With dead ends: 182795 [2024-11-28 05:22:14,151 INFO L226 Difference]: Without dead ends: 178428 [2024-11-28 05:22:14,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11531 GetRequests, 11391 SyntacticMatches, 10 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4417 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=5015, Invalid=12277, Unknown=0, NotChecked=0, Total=17292 [2024-11-28 05:22:14,228 INFO L435 NwaCegarLoop]: 42853 mSDtfsCounter, 672684 mSDsluCounter, 324450 mSDsCounter, 0 mSdLazyCounter, 67486 mSolverCounterSat, 53923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672702 SdHoareTripleChecker+Valid, 367303 SdHoareTripleChecker+Invalid, 121409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.9s SdHoareTripleChecker+Time, 53923 IncrementalHoareTripleChecker+Valid, 67486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:14,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672702 Valid, 367303 Invalid, 121409 Unknown, 0 Unchecked, 1.9s Time], IncrementalHoareTripleChecker [53923 Valid, 67486 Invalid, 0 Unknown, 0 Unchecked, 133.1s Time] [2024-11-28 05:22:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178428 states. [2024-11-28 05:22:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178428 to 112817. [2024-11-28 05:22:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112817 states, 98653 states have (on average 1.5728462388371363) internal successors, (155166), 98653 states have internal predecessors, (155166), 14162 states have call successors, (14162), 1 states have call predecessors, (14162), 1 states have return successors, (14162), 14162 states have call predecessors, (14162), 14162 states have call successors, (14162) [2024-11-28 05:22:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112817 states to 112817 states and 183490 transitions. [2024-11-28 05:22:38,573 INFO L78 Accepts]: Start accepts. Automaton has 112817 states and 183490 transitions. Word has length 5692 [2024-11-28 05:22:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:38,592 INFO L471 AbstractCegarLoop]: Abstraction has 112817 states and 183490 transitions. [2024-11-28 05:22:38,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 29 states have (on average 171.0344827586207) internal successors, (4960), 31 states have internal predecessors, (4960), 40 states have call successors, (2060), 2 states have call predecessors, (2060), 3 states have return successors, (2063), 38 states have call predecessors, (2063), 40 states have call successors, (2063) [2024-11-28 05:22:38,596 INFO L276 IsEmpty]: Start isEmpty. Operand 112817 states and 183490 transitions. [2024-11-28 05:22:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5695 [2024-11-28 05:22:39,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:39,435 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] [2024-11-28 05:22:39,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:22:39,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 05:22:39,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:39,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:39,644 INFO L85 PathProgramCache]: Analyzing trace with hash 629624268, now seen corresponding path program 1 times [2024-11-28 05:22:39,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:39,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685605516] [2024-11-28 05:22:39,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:39,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:08,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 420 proven. 4122 refuted. 0 times theorem prover too weak. 1146102 trivial. 0 not checked. [2024-11-28 05:23:08,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:23:08,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685605516] [2024-11-28 05:23:08,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685605516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:23:08,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100535720] [2024-11-28 05:23:08,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:08,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:23:08,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:08,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:23:08,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a896accf-0f19-4d16-9d2a-1b7bff5bcd93/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:23:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:23:10,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 11327 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 05:23:10,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:23:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 71856 proven. 11826 refuted. 0 times theorem prover too weak. 1066962 trivial. 0 not checked. [2024-11-28 05:23:50,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:24:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1150644 backedges. 1296 proven. 12258 refuted. 0 times theorem prover too weak. 1137090 trivial. 0 not checked. [2024-11-28 05:24:13,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100535720] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:24:13,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:24:13,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 15] total 28 [2024-11-28 05:24:13,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586789570] [2024-11-28 05:24:13,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:24:13,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 05:24:13,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:13,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 05:24:13,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:24:13,264 INFO L87 Difference]: Start difference. First operand 112817 states and 183490 transitions. Second operand has 28 states, 22 states have (on average 232.4090909090909) internal successors, (5113), 22 states have internal predecessors, (5113), 25 states have call successors, (2062), 2 states have call predecessors, (2062), 3 states have return successors, (2064), 25 states have call predecessors, (2064), 25 states have call successors, (2064)