./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-1-6-sat-4.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_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/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_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-1-6-sat-4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/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_416badf0-4fe1-4a52-8f80-4e9396d288fc/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 a92fc7c9d73c5f2c5561352c5eb7a038c933de15daf773501801a48cab1b916b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:23:26,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:23:26,946 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:23:26,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:23:26,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:23:26,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:23:26,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:23:26,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:23:26,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:23:26,983 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:23:26,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:23:26,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:23:26,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:23:26,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:23:26,984 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:23:26,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:23:26,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:23:26,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:23:26,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:23:26,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:23:26,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:23:26,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:23:26,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:23:26,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:23:26,987 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:23:26,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:23:26,988 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:23:26,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:23:26,988 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:23:26,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:23:26,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:23:26,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:23:26,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:23:26,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:23:26,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:23:26,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:23:26,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:23:26,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:23:26,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:23:26,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:23:26,991 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:23:26,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:23:26,991 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:23:26,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:23:26,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:23:26,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:23:26,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:23:26,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:23:26,992 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_416badf0-4fe1-4a52-8f80-4e9396d288fc/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 -> a92fc7c9d73c5f2c5561352c5eb7a038c933de15daf773501801a48cab1b916b [2024-11-27 23:23:27,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:23:27,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:23:27,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:23:27,382 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:23:27,382 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:23:27,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-1-6-sat-4.c [2024-11-27 23:23:30,688 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/data/814361b25/bde4a006cb2341f5a0f10157fabda5cd/FLAG020af0db1 [2024-11-27 23:23:31,160 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:23:31,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/sv-benchmarks/c/xcsp/aim-200-1-6-sat-4.c [2024-11-27 23:23:31,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/data/814361b25/bde4a006cb2341f5a0f10157fabda5cd/FLAG020af0db1 [2024-11-27 23:23:31,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/data/814361b25/bde4a006cb2341f5a0f10157fabda5cd [2024-11-27 23:23:31,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:23:31,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:23:31,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:23:31,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:23:31,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:23:31,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:31" (1/1) ... [2024-11-27 23:23:31,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81677d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:31, skipping insertion in model container [2024-11-27 23:23:31,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:31" (1/1) ... [2024-11-27 23:23:31,317 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:23:31,971 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_416badf0-4fe1-4a52-8f80-4e9396d288fc/sv-benchmarks/c/xcsp/aim-200-1-6-sat-4.c[38218,38231] [2024-11-27 23:23:32,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:23:32,020 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:23:32,242 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_416badf0-4fe1-4a52-8f80-4e9396d288fc/sv-benchmarks/c/xcsp/aim-200-1-6-sat-4.c[38218,38231] [2024-11-27 23:23:32,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:23:32,287 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:23:32,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32 WrapperNode [2024-11-27 23:23:32,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:23:32,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:23:32,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:23:32,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:23:32,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:32,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:32,923 INFO L138 Inliner]: procedures = 13, calls = 725, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6838 [2024-11-27 23:23:32,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:23:32,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:23:32,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:23:32,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:23:32,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:32,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,235 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:23:33,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,514 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:23:33,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:23:33,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:23:33,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:23:33,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (1/1) ... [2024-11-27 23:23:33,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:23:33,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:33,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:23:33,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:23:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:23:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:23:33,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:23:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:23:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-27 23:23:33,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-27 23:23:34,284 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:23:34,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:23:49,819 INFO L? ?]: Removed 1565 outVars from TransFormulas that were not future-live. [2024-11-27 23:23:49,819 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:23:49,907 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:23:49,907 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:23:49,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:23:49 BoogieIcfgContainer [2024-11-27 23:23:49,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:23:49,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:23:49,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:23:49,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:23:49,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:23:31" (1/3) ... [2024-11-27 23:23:49,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3820c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:23:49, skipping insertion in model container [2024-11-27 23:23:49,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:32" (2/3) ... [2024-11-27 23:23:49,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3820c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:23:49, skipping insertion in model container [2024-11-27 23:23:49,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:23:49" (3/3) ... [2024-11-27 23:23:49,924 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-1-6-sat-4.c [2024-11-27 23:23:49,943 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:23:49,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-1-6-sat-4.c that has 2 procedures, 3161 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-27 23:23:50,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:23:50,160 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;@51bff526, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:23:50,161 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:23:50,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 3161 states, 2440 states have (on average 1.5237704918032786) internal successors, (3718), 2441 states have internal predecessors, (3718), 718 states have call successors, (718), 1 states have call predecessors, (718), 1 states have return successors, (718), 718 states have call predecessors, (718), 718 states have call successors, (718) [2024-11-27 23:23:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4750 [2024-11-27 23:23:50,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:50,515 INFO L218 NwaCegarLoop]: trace histogram [718, 718, 718, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-27 23:23:50,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:50,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1388988164, now seen corresponding path program 1 times [2024-11-27 23:23:50,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:50,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207838541] [2024-11-27 23:23:50,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:50,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1029612 backedges. 0 proven. 1434 refuted. 0 times theorem prover too weak. 1028178 trivial. 0 not checked. [2024-11-27 23:23:58,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:58,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207838541] [2024-11-27 23:23:58,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207838541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:58,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329439671] [2024-11-27 23:23:58,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:58,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:58,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:58,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:23:58,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:24:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:01,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 9120 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:24:01,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1029612 backedges. 1434 proven. 0 refuted. 0 times theorem prover too weak. 1028178 trivial. 0 not checked. [2024-11-27 23:24:01,812 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:24:01,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329439671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:01,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:24:01,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:24:01,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767303959] [2024-11-27 23:24:01,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:01,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:24:01,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:01,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:24:01,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:24:01,873 INFO L87 Difference]: Start difference. First operand has 3161 states, 2440 states have (on average 1.5237704918032786) internal successors, (3718), 2441 states have internal predecessors, (3718), 718 states have call successors, (718), 1 states have call predecessors, (718), 1 states have return successors, (718), 718 states have call predecessors, (718), 718 states have call successors, (718) Second operand has 2 states, 2 states have (on average 582.0) internal successors, (1164), 2 states have internal predecessors, (1164), 2 states have call successors, (718), 2 states have call predecessors, (718), 1 states have return successors, (718), 1 states have call predecessors, (718), 2 states have call successors, (718) [2024-11-27 23:24:02,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:02,249 INFO L93 Difference]: Finished difference Result 6316 states and 11020 transitions. [2024-11-27 23:24:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:24:02,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 582.0) internal successors, (1164), 2 states have internal predecessors, (1164), 2 states have call successors, (718), 2 states have call predecessors, (718), 1 states have return successors, (718), 1 states have call predecessors, (718), 2 states have call successors, (718) Word has length 4749 [2024-11-27 23:24:02,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:02,290 INFO L225 Difference]: With dead ends: 6316 [2024-11-27 23:24:02,290 INFO L226 Difference]: Without dead ends: 3158 [2024-11-27 23:24:02,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4750 GetRequests, 4750 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:24:02,310 INFO L435 NwaCegarLoop]: 5150 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, 5150 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:02,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:24:02,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2024-11-27 23:24:02,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3158. [2024-11-27 23:24:03,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 2438 states have (on average 1.5233798195242) internal successors, (3714), 2438 states have internal predecessors, (3714), 718 states have call successors, (718), 1 states have call predecessors, (718), 1 states have return successors, (718), 718 states have call predecessors, (718), 718 states have call successors, (718) [2024-11-27 23:24:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 5150 transitions. [2024-11-27 23:24:03,045 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 5150 transitions. Word has length 4749 [2024-11-27 23:24:03,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:03,046 INFO L471 AbstractCegarLoop]: Abstraction has 3158 states and 5150 transitions. [2024-11-27 23:24:03,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 582.0) internal successors, (1164), 2 states have internal predecessors, (1164), 2 states have call successors, (718), 2 states have call predecessors, (718), 1 states have return successors, (718), 1 states have call predecessors, (718), 2 states have call successors, (718) [2024-11-27 23:24:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 5150 transitions. [2024-11-27 23:24:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4750 [2024-11-27 23:24:03,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:03,360 INFO L218 NwaCegarLoop]: trace histogram [718, 718, 718, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-27 23:24:03,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:24:03,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:24:03,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:03,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:03,564 INFO L85 PathProgramCache]: Analyzing trace with hash -632969680, now seen corresponding path program 1 times [2024-11-27 23:24:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:03,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322137236] [2024-11-27 23:24:03,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1029612 backedges. 6171 proven. 33672 refuted. 0 times theorem prover too weak. 989769 trivial. 0 not checked. [2024-11-27 23:27:41,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322137236] [2024-11-27 23:27:41,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322137236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174483624] [2024-11-27 23:27:41,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:41,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:41,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:41,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:42,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_416badf0-4fe1-4a52-8f80-4e9396d288fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:27:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:44,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 9120 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-27 23:27:44,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1029612 backedges. 58380 proven. 23514 refuted. 0 times theorem prover too weak. 947718 trivial. 0 not checked. [2024-11-27 23:28:37,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1029612 backedges. 5256 proven. 24312 refuted. 0 times theorem prover too weak. 1000044 trivial. 0 not checked. [2024-11-27 23:29:53,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174483624] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:53,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:53,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 26, 26] total 80 [2024-11-27 23:29:53,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442808188] [2024-11-27 23:29:53,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:53,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-11-27 23:29:53,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:53,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-11-27 23:29:53,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=5664, Unknown=0, NotChecked=0, Total=6320 [2024-11-27 23:29:53,096 INFO L87 Difference]: Start difference. First operand 3158 states and 5150 transitions. Second operand has 80 states, 53 states have (on average 61.75471698113208) internal successors, (3273), 58 states have internal predecessors, (3273), 75 states have call successors, (2057), 2 states have call predecessors, (2057), 3 states have return successors, (2059), 70 states have call predecessors, (2059), 75 states have call successors, (2059)