./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX --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 16939203a06add21b495801307204d763da69843ccd8efdd13c6ae87cd9ca6cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:43:44,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:43:44,747 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:43:44,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:43:44,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:43:44,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:43:44,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:43:44,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:43:44,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:43:44,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:43:44,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:43:44,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:43:44,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:43:44,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:43:44,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:43:44,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:43:44,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:43:44,805 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:43:44,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:43:44,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:43:44,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:43:44,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:43:44,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:43:44,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:43:44,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:43:44,811 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:43:44,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:43:44,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:43:44,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:43:44,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:43:44,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:43:44,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:43:44,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:43:44,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:43:44,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:43:44,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:43:44,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:43:44,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:43:44,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:43:44,816 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:43:44,816 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:43:44,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:43:44,817 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16939203a06add21b495801307204d763da69843ccd8efdd13c6ae87cd9ca6cf [2024-11-08 17:43:45,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:43:45,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:43:45,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:43:45,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:43:45,154 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:43:45,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i Unable to find full path for "g++" [2024-11-08 17:43:47,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:43:47,455 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:43:47,456 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i [2024-11-08 17:43:47,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/data/9f9eaf045/0ae17032b2984db49743d4f95fc0d881/FLAG08f4e2b0c [2024-11-08 17:43:47,500 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/data/9f9eaf045/0ae17032b2984db49743d4f95fc0d881 [2024-11-08 17:43:47,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:43:47,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:43:47,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:43:47,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:43:47,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:43:47,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:47,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ca776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47, skipping insertion in model container [2024-11-08 17:43:47,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:47,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:43:47,789 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_514b2cb7-48c5-418f-bf12-a8335106b7b6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i[919,932] [2024-11-08 17:43:47,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:43:47,913 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:43:47,926 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_514b2cb7-48c5-418f-bf12-a8335106b7b6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i[919,932] [2024-11-08 17:43:47,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:43:47,989 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:43:47,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47 WrapperNode [2024-11-08 17:43:47,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:43:47,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:43:47,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:43:47,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:43:47,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,058 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 245 [2024-11-08 17:43:48,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:43:48,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:43:48,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:43:48,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:43:48,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,096 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]. [2024-11-08 17:43:48,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:43:48,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:43:48,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:43:48,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:43:48,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (1/1) ... [2024-11-08 17:43:48,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:43:48,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:43:48,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:43:48,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514b2cb7-48c5-418f-bf12-a8335106b7b6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:43:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:43:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:43:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:43:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:43:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:43:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:43:48,342 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:43:48,344 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:43:48,972 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-08 17:43:48,973 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:43:48,987 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:43:48,987 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:43:48,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:43:48 BoogieIcfgContainer [2024-11-08 17:43:48,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:43:48,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:43:48,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:43:48,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:43:48,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:43:47" (1/3) ... [2024-11-08 17:43:48,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6623220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:43:48, skipping insertion in model container [2024-11-08 17:43:48,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:43:47" (2/3) ... [2024-11-08 17:43:48,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6623220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:43:48, skipping insertion in model container [2024-11-08 17:43:48,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:43:48" (3/3) ... [2024-11-08 17:43:48,997 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-95.i [2024-11-08 17:43:49,022 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:43:49,022 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:43:49,111 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:43:49,118 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;@4cc4c34b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:43:49,118 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:43:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 70 states have (on average 1.4428571428571428) internal successors, (101), 71 states have internal predecessors, (101), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:43:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-08 17:43:49,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:43:49,146 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:49,147 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:43:49,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:49,152 INFO L85 PathProgramCache]: Analyzing trace with hash -491568924, now seen corresponding path program 1 times [2024-11-08 17:43:49,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:49,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992338614] [2024-11-08 17:43:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:49,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:43:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:43:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:43:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 17:43:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 17:43:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 17:43:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:43:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 17:43:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 17:43:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:43:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:43:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 17:43:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 17:43:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:43:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:43:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:43:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:43:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 17:43:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 17:43:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 17:43:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 17:43:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 17:43:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 17:43:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 17:43:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 17:43:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 17:43:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 17:43:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 17:43:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-08 17:43:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 17:43:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 17:43:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 17:43:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 17:43:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-08 17:43:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:49,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 17:43:49,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:49,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992338614] [2024-11-08 17:43:49,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992338614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:43:49,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:43:49,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:43:49,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492983948] [2024-11-08 17:43:49,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:43:49,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:43:49,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:49,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:43:49,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:43:49,868 INFO L87 Difference]: Start difference. First operand has 107 states, 70 states have (on average 1.4428571428571428) internal successors, (101), 71 states have internal predecessors, (101), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-08 17:43:49,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:43:49,916 INFO L93 Difference]: Finished difference Result 206 states and 364 transitions. [2024-11-08 17:43:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:43:49,920 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 218 [2024-11-08 17:43:49,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:43:49,929 INFO L225 Difference]: With dead ends: 206 [2024-11-08 17:43:49,929 INFO L226 Difference]: Without dead ends: 102 [2024-11-08 17:43:49,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:43:49,941 INFO L432 NwaCegarLoop]: 159 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, 159 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 [2024-11-08 17:43:49,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:43:49,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-08 17:43:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-08 17:43:50,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.378787878787879) internal successors, (91), 66 states have internal predecessors, (91), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-08 17:43:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 159 transitions. [2024-11-08 17:43:50,026 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 159 transitions. Word has length 218 [2024-11-08 17:43:50,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:43:50,031 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 159 transitions. [2024-11-08 17:43:50,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-08 17:43:50,031 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 159 transitions. [2024-11-08 17:43:50,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-08 17:43:50,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:43:50,048 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:50,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:43:50,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:43:50,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:50,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1615565652, now seen corresponding path program 1 times [2024-11-08 17:43:50,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:50,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891618034] [2024-11-08 17:43:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:43:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:43:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:43:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 17:43:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 17:43:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 17:43:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:43:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 17:43:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 17:43:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:43:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:43:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 17:43:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 17:43:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:43:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:43:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:43:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 17:43:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 17:43:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 17:43:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 17:43:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 17:43:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 17:43:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 17:43:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 17:43:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 17:43:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 17:43:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 17:43:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 17:43:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-08 17:43:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 17:43:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 17:43:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 17:43:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 17:43:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-08 17:43:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:43:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 17:43:50,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:43:50,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891618034] [2024-11-08 17:43:50,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891618034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:43:50,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:43:50,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:43:50,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193749203] [2024-11-08 17:43:50,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:43:50,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:43:50,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:43:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:43:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:43:50,971 INFO L87 Difference]: Start difference. First operand 102 states and 159 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-08 17:43:51,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:43:51,408 INFO L93 Difference]: Finished difference Result 301 states and 472 transitions. [2024-11-08 17:43:51,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:43:51,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 218 [2024-11-08 17:43:51,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:43:51,417 INFO L225 Difference]: With dead ends: 301 [2024-11-08 17:43:51,417 INFO L226 Difference]: Without dead ends: 202 [2024-11-08 17:43:51,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:43:51,423 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 118 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:43:51,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 419 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:43:51,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-08 17:43:51,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 184. [2024-11-08 17:43:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 113 states have (on average 1.3716814159292035) internal successors, (155), 113 states have internal predecessors, (155), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-08 17:43:51,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 291 transitions. [2024-11-08 17:43:51,470 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 291 transitions. Word has length 218 [2024-11-08 17:43:51,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:43:51,471 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 291 transitions. [2024-11-08 17:43:51,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-08 17:43:51,472 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 291 transitions. [2024-11-08 17:43:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-08 17:43:51,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:43:51,475 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:43:51,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:43:51,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:43:51,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:43:51,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1978337066, now seen corresponding path program 1 times [2024-11-08 17:43:51,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:43:51,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73001047] [2024-11-08 17:43:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:43:51,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:43:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat