./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.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_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/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_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/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_592b336f-2879-4c47-a5ce-1466948c5144/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 7ba538f834e25276dcefc4c11b4f92efc495687e367eb839510e9e1800541555 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:02:51,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:02:51,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:02:51,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:02:51,782 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:02:51,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:02:51,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:02:51,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:02:51,827 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:02:51,827 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:02:51,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:02:51,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:02:51,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:02:51,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:02:51,830 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:02:51,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:02:51,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:02:51,831 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:02:51,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:02:51,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:02:51,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:02:51,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:02:51,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:02:51,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:02:51,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:02:51,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:02:51,833 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:02:51,833 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:02:51,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:02:51,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:02:51,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:02:51,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:02:51,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:51,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:02:51,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:02:51,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:02:51,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:02:51,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:51,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:02:51,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:02:51,836 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:02:51,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:02:51,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:02:51,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:02:51,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:02:51,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:02:51,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:02:51,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:02:51,837 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_592b336f-2879-4c47-a5ce-1466948c5144/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 -> 7ba538f834e25276dcefc4c11b4f92efc495687e367eb839510e9e1800541555 [2024-11-28 03:02:52,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:02:52,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:02:52,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:02:52,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:02:52,287 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:02:52,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c [2024-11-28 03:02:55,408 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/data/2f809b81c/59afaa33b2d64890840b6338453188cb/FLAG1a26a57b2 [2024-11-28 03:02:55,885 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:02:55,886 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c [2024-11-28 03:02:55,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/data/2f809b81c/59afaa33b2d64890840b6338453188cb/FLAG1a26a57b2 [2024-11-28 03:02:55,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/data/2f809b81c/59afaa33b2d64890840b6338453188cb [2024-11-28 03:02:55,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:02:55,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:02:55,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:02:55,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:02:55,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:02:55,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:55" (1/1) ... [2024-11-28 03:02:55,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81dc7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:55, skipping insertion in model container [2024-11-28 03:02:55,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:55" (1/1) ... [2024-11-28 03:02:56,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:02:56,707 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_592b336f-2879-4c47-a5ce-1466948c5144/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c[42811,42824] [2024-11-28 03:02:56,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:02:56,773 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:02:56,990 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_592b336f-2879-4c47-a5ce-1466948c5144/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-3.c[42811,42824] [2024-11-28 03:02:57,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:02:57,031 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:02:57,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57 WrapperNode [2024-11-28 03:02:57,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:02:57,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:02:57,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:02:57,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:02:57,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:57,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:57,700 INFO L138 Inliner]: procedures = 13, calls = 795, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8260 [2024-11-28 03:02:57,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:02:57,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:02:57,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:02:57,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:02:57,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:57,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:57,812 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,008 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 03:02:58,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,250 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:02:58,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:02:58,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:02:58,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:02:58,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (1/1) ... [2024-11-28 03:02:58,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:58,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:58,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:02:58,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:02:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:02:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:02:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:02:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:02:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-28 03:02:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-28 03:02:59,050 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:02:59,052 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:03:17,235 INFO L? ?]: Removed 1862 outVars from TransFormulas that were not future-live. [2024-11-28 03:03:17,236 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:03:17,340 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:03:17,340 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:03:17,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:17 BoogieIcfgContainer [2024-11-28 03:03:17,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:03:17,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:03:17,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:03:17,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:03:17,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:02:55" (1/3) ... [2024-11-28 03:03:17,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feb7af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:17, skipping insertion in model container [2024-11-28 03:03:17,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:57" (2/3) ... [2024-11-28 03:03:17,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feb7af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:17, skipping insertion in model container [2024-11-28 03:03:17,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:17" (3/3) ... [2024-11-28 03:03:17,355 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-2-0-unsat-3.c [2024-11-28 03:03:17,373 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:03:17,375 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-2-0-unsat-3.c that has 2 procedures, 3808 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 03:03:17,570 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:03:17,587 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;@4ee295bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:03:17,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:03:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 3808 states, 3017 states have (on average 1.5356314219423268) internal successors, (4633), 3018 states have internal predecessors, (4633), 788 states have call successors, (788), 1 states have call predecessors, (788), 1 states have return successors, (788), 788 states have call predecessors, (788), 788 states have call successors, (788) [2024-11-28 03:03:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5339 [2024-11-28 03:03:17,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:17,914 INFO L218 NwaCegarLoop]: trace histogram [788, 788, 788, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-28 03:03:17,914 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:03:17,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:17,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1259469085, now seen corresponding path program 1 times [2024-11-28 03:03:17,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:17,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144354725] [2024-11-28 03:03:17,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 2844 proven. 15876 refuted. 0 times theorem prover too weak. 1221592 trivial. 0 not checked. [2024-11-28 03:04:37,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:37,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144354725] [2024-11-28 03:04:37,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144354725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:04:37,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131403476] [2024-11-28 03:04:37,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:37,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:04:37,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:04:37,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:04:37,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:04:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:40,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 10327 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-28 03:04:40,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:05:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 286020 proven. 22092 refuted. 0 times theorem prover too weak. 932200 trivial. 0 not checked. [2024-11-28 03:05:34,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 6132 proven. 26376 refuted. 0 times theorem prover too weak. 1207804 trivial. 0 not checked. [2024-11-28 03:06:38,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131403476] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:06:38,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:06:38,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25, 25] total 59 [2024-11-28 03:06:38,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386362527] [2024-11-28 03:06:38,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:06:38,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-28 03:06:38,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:06:38,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-28 03:06:38,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=2933, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 03:06:38,197 INFO L87 Difference]: Start difference. First operand has 3808 states, 3017 states have (on average 1.5356314219423268) internal successors, (4633), 3018 states have internal predecessors, (4633), 788 states have call successors, (788), 1 states have call predecessors, (788), 1 states have return successors, (788), 788 states have call predecessors, (788), 788 states have call successors, (788) Second operand has 59 states, 40 states have (on average 86.95) internal successors, (3478), 42 states have internal predecessors, (3478), 53 states have call successors, (2112), 2 states have call predecessors, (2112), 3 states have return successors, (2114), 51 states have call predecessors, (2114), 53 states have call successors, (2114) [2024-11-28 03:09:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:09:35,664 INFO L93 Difference]: Finished difference Result 111154 states and 194098 transitions. [2024-11-28 03:09:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2024-11-28 03:09:35,669 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 40 states have (on average 86.95) internal successors, (3478), 42 states have internal predecessors, (3478), 53 states have call successors, (2112), 2 states have call predecessors, (2112), 3 states have return successors, (2114), 51 states have call predecessors, (2114), 53 states have call successors, (2114) Word has length 5338 [2024-11-28 03:09:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:09:36,126 INFO L225 Difference]: With dead ends: 111154 [2024-11-28 03:09:36,126 INFO L226 Difference]: Without dead ends: 107349 [2024-11-28 03:09:36,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10904 GetRequests, 10650 SyntacticMatches, 4 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18194 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=17716, Invalid=45536, Unknown=0, NotChecked=0, Total=63252 [2024-11-28 03:09:36,240 INFO L435 NwaCegarLoop]: 24442 mSDtfsCounter, 387261 mSDsluCounter, 263969 mSDsCounter, 0 mSdLazyCounter, 39802 mSolverCounterSat, 30983 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387310 SdHoareTripleChecker+Valid, 288411 SdHoareTripleChecker+Invalid, 70785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.1s SdHoareTripleChecker+Time, 30983 IncrementalHoareTripleChecker+Valid, 39802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:09:36,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387310 Valid, 288411 Invalid, 70785 Unknown, 0 Unchecked, 1.1s Time], IncrementalHoareTripleChecker [30983 Valid, 39802 Invalid, 0 Unknown, 0 Unchecked, 70.0s Time] [2024-11-28 03:09:36,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107349 states. [2024-11-28 03:09:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107349 to 19395. [2024-11-28 03:09:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19395 states, 16737 states have (on average 1.5685009260918923) internal successors, (26252), 16737 states have internal predecessors, (26252), 2656 states have call successors, (2656), 1 states have call predecessors, (2656), 1 states have return successors, (2656), 2656 states have call predecessors, (2656), 2656 states have call successors, (2656) [2024-11-28 03:09:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19395 states to 19395 states and 31564 transitions. [2024-11-28 03:09:45,914 INFO L78 Accepts]: Start accepts. Automaton has 19395 states and 31564 transitions. Word has length 5338 [2024-11-28 03:09:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:09:45,927 INFO L471 AbstractCegarLoop]: Abstraction has 19395 states and 31564 transitions. [2024-11-28 03:09:45,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 40 states have (on average 86.95) internal successors, (3478), 42 states have internal predecessors, (3478), 53 states have call successors, (2112), 2 states have call predecessors, (2112), 3 states have return successors, (2114), 51 states have call predecessors, (2114), 53 states have call successors, (2114) [2024-11-28 03:09:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 19395 states and 31564 transitions. [2024-11-28 03:09:46,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5341 [2024-11-28 03:09:46,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:09:46,557 INFO L218 NwaCegarLoop]: trace histogram [788, 788, 788, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-28 03:09:46,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:09:46,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:09:46,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:09:46,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:09:46,763 INFO L85 PathProgramCache]: Analyzing trace with hash 382829519, now seen corresponding path program 1 times [2024-11-28 03:09:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:09:46,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438600929] [2024-11-28 03:09:46,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:09:46,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:09:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 9528 proven. 36552 refuted. 0 times theorem prover too weak. 1194232 trivial. 0 not checked. [2024-11-28 03:12:25,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:25,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438600929] [2024-11-28 03:12:25,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438600929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:12:25,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478268757] [2024-11-28 03:12:25,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:25,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:12:25,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:12:25,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:12:25,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_592b336f-2879-4c47-a5ce-1466948c5144/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:12:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:27,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 10333 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 03:12:27,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:11,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 61300 proven. 15408 refuted. 0 times theorem prover too weak. 1163604 trivial. 0 not checked. [2024-11-28 03:13:11,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:49,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1240312 backedges. 2856 proven. 15864 refuted. 0 times theorem prover too weak. 1221592 trivial. 0 not checked. [2024-11-28 03:13:49,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478268757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:49,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:13:49,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 17, 17] total 66 [2024-11-28 03:13:49,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101149743] [2024-11-28 03:13:49,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:49,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-28 03:13:49,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:49,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-28 03:13:49,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=3910, Unknown=0, NotChecked=0, Total=4290 [2024-11-28 03:13:49,098 INFO L87 Difference]: Start difference. First operand 19395 states and 31564 transitions. Second operand has 66 states, 44 states have (on average 88.20454545454545) internal successors, (3881), 49 states have internal predecessors, (3881), 61 states have call successors, (2176), 2 states have call predecessors, (2176), 3 states have return successors, (2178), 56 states have call predecessors, (2178), 61 states have call successors, (2178)