./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/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 6ae4314f4ba811ecc81374bb4df27f78b66c4c1beea0be05c76985457c985743 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:01:42,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:01:42,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:01:42,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:01:42,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:01:42,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:01:42,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:01:42,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:01:42,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:01:42,407 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:01:42,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:01:42,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:01:42,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:01:42,414 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:01:42,414 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:01:42,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:01:42,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:01:42,419 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:01:42,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:01:42,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:01:42,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:01:42,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:01:42,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:01:42,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:01:42,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:01:42,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:01:42,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:01:42,427 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:01:42,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:01:42,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:01:42,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:01:42,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:01:42,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:01:42,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:01:42,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:01:42,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:01:42,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:01:42,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:01:42,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:01:42,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:01:42,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:01:42,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:01:42,436 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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ae4314f4ba811ecc81374bb4df27f78b66c4c1beea0be05c76985457c985743 [2024-11-08 18:01:42,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:01:42,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:01:42,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:01:42,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:01:42,899 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:01:42,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i Unable to find full path for "g++" [2024-11-08 18:01:45,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:01:45,622 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:01:45,623 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i [2024-11-08 18:01:45,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data/e97029339/733d0bf387f844d3968a7c8063638d92/FLAGf3f79d027 [2024-11-08 18:01:45,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data/e97029339/733d0bf387f844d3968a7c8063638d92 [2024-11-08 18:01:45,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:01:45,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:01:45,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:01:45,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:01:45,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:01:45,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:01:45" (1/1) ... [2024-11-08 18:01:45,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d691568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:45, skipping insertion in model container [2024-11-08 18:01:45,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:01:45" (1/1) ... [2024-11-08 18:01:45,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:01:46,273 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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i[915,928] [2024-11-08 18:01:46,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:01:46,395 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:01:46,410 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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i[915,928] [2024-11-08 18:01:46,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:01:46,500 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:01:46,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46 WrapperNode [2024-11-08 18:01:46,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:01:46,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:01:46,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:01:46,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:01:46,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,575 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2024-11-08 18:01:46,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:01:46,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:01:46,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:01:46,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:01:46,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,631 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 18:01:46,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:01:46,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:01:46,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:01:46,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:01:46,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (1/1) ... [2024-11-08 18:01:46,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:01:46,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:01:46,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:01:46,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:01:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:01:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:01:46,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:01:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:01:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:01:46,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:01:46,880 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:01:46,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:01:47,427 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 18:01:47,427 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:01:47,448 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:01:47,448 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:01:47,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:47 BoogieIcfgContainer [2024-11-08 18:01:47,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:01:47,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:01:47,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:01:47,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:01:47,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:01:45" (1/3) ... [2024-11-08 18:01:47,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7814b8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:01:47, skipping insertion in model container [2024-11-08 18:01:47,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:46" (2/3) ... [2024-11-08 18:01:47,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7814b8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:01:47, skipping insertion in model container [2024-11-08 18:01:47,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:47" (3/3) ... [2024-11-08 18:01:47,470 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-68.i [2024-11-08 18:01:47,501 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:01:47,502 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:01:47,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:01:47,588 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;@140bdd99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:01:47,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:01:47,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 46 states have internal predecessors, (66), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 18:01:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 18:01:47,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:47,609 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:01:47,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:47,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1439815553, now seen corresponding path program 1 times [2024-11-08 18:01:47,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:47,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449739739] [2024-11-08 18:01:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:47,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:01:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:01:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:01:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:01:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:01:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:01:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:01:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:01:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:01:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:01:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:01:48,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:48,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449739739] [2024-11-08 18:01:48,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449739739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:48,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:48,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:01:48,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913125027] [2024-11-08 18:01:48,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:48,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:01:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:48,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:01:48,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:01:48,204 INFO L87 Difference]: Start difference. First operand has 58 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 46 states have internal predecessors, (66), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:01:48,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:48,248 INFO L93 Difference]: Finished difference Result 107 states and 174 transitions. [2024-11-08 18:01:48,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:01:48,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2024-11-08 18:01:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:48,261 INFO L225 Difference]: With dead ends: 107 [2024-11-08 18:01:48,261 INFO L226 Difference]: Without dead ends: 52 [2024-11-08 18:01:48,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 18:01:48,272 INFO L432 NwaCegarLoop]: 75 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, 75 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 18:01:48,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:01:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-08 18:01:48,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-08 18:01:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 18:01:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2024-11-08 18:01:48,329 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 78 [2024-11-08 18:01:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:48,330 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2024-11-08 18:01:48,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:01:48,331 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2024-11-08 18:01:48,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 18:01:48,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:48,335 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:01:48,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:01:48,336 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:48,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:48,337 INFO L85 PathProgramCache]: Analyzing trace with hash 903865475, now seen corresponding path program 1 times [2024-11-08 18:01:48,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:48,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868257410] [2024-11-08 18:01:48,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:48,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:01:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:01:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:01:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:01:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:01:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:01:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:48,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:01:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:49,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:01:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:49,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:01:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:49,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:01:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:01:49,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:49,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868257410] [2024-11-08 18:01:49,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868257410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:49,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:49,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:01:49,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543007282] [2024-11-08 18:01:49,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:49,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:01:49,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:49,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:01:49,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:01:49,035 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:01:49,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:49,205 INFO L93 Difference]: Finished difference Result 101 states and 147 transitions. [2024-11-08 18:01:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:01:49,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 78 [2024-11-08 18:01:49,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:49,209 INFO L225 Difference]: With dead ends: 101 [2024-11-08 18:01:49,209 INFO L226 Difference]: Without dead ends: 52 [2024-11-08 18:01:49,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:01:49,214 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 67 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:49,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 104 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:01:49,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-08 18:01:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-08 18:01:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 18:01:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2024-11-08 18:01:49,232 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 74 transitions. Word has length 78 [2024-11-08 18:01:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:49,237 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 74 transitions. [2024-11-08 18:01:49,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:01:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2024-11-08 18:01:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 18:01:49,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:49,244 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:01:49,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:01:49,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:49,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:49,245 INFO L85 PathProgramCache]: Analyzing trace with hash 748236789, now seen corresponding path program 1 times [2024-11-08 18:01:49,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:49,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464193104] [2024-11-08 18:01:49,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:49,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:01:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:01:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:01:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:01:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:01:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:01:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:01:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:01:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:01:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:01:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:50,761 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:01:50,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:50,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464193104] [2024-11-08 18:01:50,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464193104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:50,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:50,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:01:50,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641858218] [2024-11-08 18:01:50,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:50,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:01:50,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:50,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:01:50,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:01:50,770 INFO L87 Difference]: Start difference. First operand 52 states and 74 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:01:51,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:51,483 INFO L93 Difference]: Finished difference Result 204 states and 287 transitions. [2024-11-08 18:01:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:01:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 79 [2024-11-08 18:01:51,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:51,487 INFO L225 Difference]: With dead ends: 204 [2024-11-08 18:01:51,488 INFO L226 Difference]: Without dead ends: 155 [2024-11-08 18:01:51,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:01:51,492 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 185 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:51,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 339 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:01:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-08 18:01:51,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 97. [2024-11-08 18:01:51,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 73 states have (on average 1.3013698630136987) internal successors, (95), 73 states have internal predecessors, (95), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:01:51,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 135 transitions. [2024-11-08 18:01:51,527 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 135 transitions. Word has length 79 [2024-11-08 18:01:51,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:51,527 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 135 transitions. [2024-11-08 18:01:51,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:01:51,528 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 135 transitions. [2024-11-08 18:01:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 18:01:51,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:51,530 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:01:51,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:01:51,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:51,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:51,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1314145476, now seen corresponding path program 1 times [2024-11-08 18:01:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:51,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454788145] [2024-11-08 18:01:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:01:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:01:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:01:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:01:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:01:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:01:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:01:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:01:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:01:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:01:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:01:52,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:52,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454788145] [2024-11-08 18:01:52,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454788145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:52,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:52,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:01:52,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573869016] [2024-11-08 18:01:52,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:52,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:01:52,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:52,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:01:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:01:52,514 INFO L87 Difference]: Start difference. First operand 97 states and 135 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:01:53,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:53,296 INFO L93 Difference]: Finished difference Result 219 states and 306 transitions. [2024-11-08 18:01:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:01:53,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2024-11-08 18:01:53,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:53,301 INFO L225 Difference]: With dead ends: 219 [2024-11-08 18:01:53,302 INFO L226 Difference]: Without dead ends: 170 [2024-11-08 18:01:53,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:01:53,308 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 203 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:53,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 351 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:01:53,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-08 18:01:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 98. [2024-11-08 18:01:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 74 states have internal predecessors, (97), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:01:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2024-11-08 18:01:53,338 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 80 [2024-11-08 18:01:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:53,339 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2024-11-08 18:01:53,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:01:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2024-11-08 18:01:53,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 18:01:53,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:53,346 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:01:53,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:01:53,346 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:53,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:53,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1392473918, now seen corresponding path program 1 times [2024-11-08 18:01:53,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:53,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845288031] [2024-11-08 18:01:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:53,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:01:53,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955342410] [2024-11-08 18:01:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:53,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:01:53,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:01:53,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:01:53,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:01:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:01:53,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:01:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:01:53,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:01:53,951 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:01:53,953 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:01:53,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:01:54,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:01:54,161 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 18:01:54,272 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:01:54,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:01:54 BoogieIcfgContainer [2024-11-08 18:01:54,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:01:54,277 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:01:54,277 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:01:54,278 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:01:54,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:47" (3/4) ... [2024-11-08 18:01:54,282 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:01:54,283 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:01:54,285 INFO L158 Benchmark]: Toolchain (without parser) took 8340.08ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 122.8MB in the beginning and 126.6MB in the end (delta: -3.8MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-11-08 18:01:54,285 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 109.1MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:01:54,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.33ms. Allocated memory is still 161.5MB. Free memory was 122.4MB in the beginning and 107.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:01:54,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.95ms. Allocated memory is still 161.5MB. Free memory was 107.0MB in the beginning and 103.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:01:54,287 INFO L158 Benchmark]: Boogie Preprocessor took 79.05ms. Allocated memory is still 161.5MB. Free memory was 103.6MB in the beginning and 99.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:01:54,287 INFO L158 Benchmark]: RCFGBuilder took 792.17ms. Allocated memory is still 161.5MB. Free memory was 99.0MB in the beginning and 119.3MB in the end (delta: -20.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-08 18:01:54,288 INFO L158 Benchmark]: TraceAbstraction took 6819.53ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 118.6MB in the beginning and 126.6MB in the end (delta: -8.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-08 18:01:54,289 INFO L158 Benchmark]: Witness Printer took 6.52ms. Allocated memory is still 203.4MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:01:54,291 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 109.1MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.33ms. Allocated memory is still 161.5MB. Free memory was 122.4MB in the beginning and 107.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.95ms. Allocated memory is still 161.5MB. Free memory was 107.0MB in the beginning and 103.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.05ms. Allocated memory is still 161.5MB. Free memory was 103.6MB in the beginning and 99.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 792.17ms. Allocated memory is still 161.5MB. Free memory was 99.0MB in the beginning and 119.3MB in the end (delta: -20.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6819.53ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 118.6MB in the beginning and 126.6MB in the end (delta: -8.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 6.52ms. Allocated memory is still 203.4MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 114, overapproximation of someBinaryFLOATComparisonOperation at line 114. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_5 = 0; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 1; [L26] unsigned char var_1_8 = 32; [L27] double var_1_9 = 4.6; [L28] double var_1_10 = 9.25; [L29] double var_1_11 = 1.25; [L30] unsigned char var_1_12 = 100; [L31] unsigned char var_1_13 = 64; [L32] unsigned char var_1_14 = 0; [L33] float var_1_15 = 7.5; [L34] signed long int var_1_16 = 0; [L35] double last_1_var_1_9 = 4.6; [L36] unsigned char last_1_var_1_12 = 100; [L37] unsigned char last_1_var_1_14 = 0; [L38] signed long int last_1_var_1_16 = 0; VAL [isInitial=0, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L118] isInitial = 1 [L119] FCALL initially() [L120] COND TRUE 1 [L121] CALL updateLastVariables() [L108] last_1_var_1_9 = var_1_9 [L109] last_1_var_1_12 = var_1_12 [L110] last_1_var_1_14 = var_1_14 [L111] last_1_var_1_16 = var_1_16 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L121] RET updateLastVariables() [L122] CALL updateVariables() [L91] var_1_5 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L92] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L93] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L93] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L94] var_1_7 = __VERIFIER_nondet_uchar() [L95] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L95] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L96] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L96] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L97] var_1_8 = __VERIFIER_nondet_uchar() [L98] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L98] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L99] CALL assume_abort_if_not(var_1_8 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L99] RET assume_abort_if_not(var_1_8 <= 255) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L100] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L100] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L101] var_1_10 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L102] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L103] var_1_13 = __VERIFIER_nondet_uchar() [L104] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L104] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L105] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L105] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L122] RET updateVariables() [L123] CALL step() [L42] signed long int stepLocal_4 = last_1_var_1_16; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_11=5/4, var_1_12=100, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L43] COND FALSE !(\read(last_1_var_1_14)) [L54] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L56] var_1_16 = last_1_var_1_12 [L57] unsigned long int stepLocal_6 = var_1_13 % (5u + 256u); [L58] signed long int stepLocal_5 = var_1_13 + 16; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, stepLocal_5=16, stepLocal_6=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L59] COND TRUE stepLocal_6 <= var_1_16 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, stepLocal_5=16, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L60] COND FALSE !(stepLocal_5 >= var_1_16) [L63] var_1_14 = var_1_7 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L66] unsigned char stepLocal_0 = var_1_12; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L67] EXPR var_1_12 ^ var_1_12 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_0=0, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L67] COND TRUE stepLocal_0 <= (var_1_12 ^ var_1_12) [L68] var_1_1 = (! var_1_5) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L72] unsigned char stepLocal_2 = var_1_12 < (var_1_16 / var_1_8); [L73] signed long int stepLocal_1 = var_1_16; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_1=100, stepLocal_2=0, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L74] COND FALSE !(-256 >= stepLocal_1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_2=0, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L77] COND FALSE !(stepLocal_2 || ((var_1_5 && var_1_7) && var_1_1)) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L81] unsigned char stepLocal_3 = ! var_1_5; VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_3=1, stepLocal_4=0, var_1_11=5/4, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L82] COND TRUE (var_1_7 && var_1_14) || stepLocal_3 [L83] var_1_11 = var_1_10 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=15/2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L85] var_1_15 = var_1_10 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=23/5] [L86] COND TRUE ((((((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) > (var_1_12)) ? (((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) : (var_1_12))) <= (50 * var_1_8) [L87] var_1_9 = var_1_10 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, stepLocal_4=0, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=2] [L123] RET step() [L124] CALL, EXPR property() [L114] EXPR var_1_12 ^ var_1_12 VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=2] [L114-L115] return ((((((((var_1_12 <= (var_1_12 ^ var_1_12)) ? (var_1_1 == ((unsigned char) (! var_1_5))) : (var_1_1 == ((unsigned char) (! var_1_5)))) && ((-256 >= var_1_16) ? (var_1_6 == ((unsigned char) (var_1_1 || var_1_7))) : (((var_1_12 < (var_1_16 / var_1_8)) || ((var_1_5 && var_1_7) && var_1_1)) ? (var_1_6 == ((unsigned char) var_1_7)) : 1))) && ((((((((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) > (var_1_12)) ? (((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) : (var_1_12))) <= (50 * var_1_8)) ? (var_1_9 == ((double) var_1_10)) : 1)) && (((var_1_7 && var_1_14) || (! var_1_5)) ? (var_1_11 == ((double) var_1_10)) : 1)) && (last_1_var_1_14 ? ((var_1_10 >= (- last_1_var_1_9)) ? ((var_1_8 != last_1_var_1_16) ? (var_1_12 == ((unsigned char) var_1_13)) : (var_1_12 == ((unsigned char) 50))) : (var_1_12 == ((unsigned char) var_1_13))) : (var_1_12 == ((unsigned char) var_1_13)))) && (((var_1_13 % (5u + 256u)) <= var_1_16) ? (((var_1_13 + 16) >= var_1_16) ? (var_1_14 == ((unsigned char) var_1_7)) : (var_1_14 == ((unsigned char) var_1_7))) : 1)) && (var_1_15 == ((float) var_1_10))) && (var_1_16 == ((signed long int) last_1_var_1_12)) ; [L124] RET, EXPR property() [L124] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=2, var_1_16=100, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=101, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 455 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 455 mSDsluCounter, 869 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 575 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 294 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 475 NumberOfCodeBlocks, 475 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 924 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 720/720 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:01:54,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/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 6ae4314f4ba811ecc81374bb4df27f78b66c4c1beea0be05c76985457c985743 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:01:57,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:01:57,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:01:57,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:01:57,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:01:57,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:01:57,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:01:57,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:01:57,456 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:01:57,457 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:01:57,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:01:57,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:01:57,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:01:57,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:01:57,460 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:01:57,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:01:57,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:01:57,464 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:01:57,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:01:57,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:01:57,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:01:57,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:01:57,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:01:57,470 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:01:57,471 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:01:57,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:01:57,471 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:01:57,472 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:01:57,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:01:57,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:01:57,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:01:57,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:01:57,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:01:57,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:01:57,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:01:57,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:01:57,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:01:57,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:01:57,481 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:01:57,482 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:01:57,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:01:57,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:01:57,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:01:57,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:01:57,483 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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ae4314f4ba811ecc81374bb4df27f78b66c4c1beea0be05c76985457c985743 [2024-11-08 18:01:57,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:01:57,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:01:58,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:01:58,002 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:01:58,003 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:01:58,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i Unable to find full path for "g++" [2024-11-08 18:02:00,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:02:00,860 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:02:00,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i [2024-11-08 18:02:00,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data/ae11d1c4d/a955ce190c014fec81b3c16e27b28048/FLAG3ba38ed7d [2024-11-08 18:02:00,894 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/data/ae11d1c4d/a955ce190c014fec81b3c16e27b28048 [2024-11-08 18:02:00,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:02:00,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:02:00,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:02:00,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:02:00,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:02:00,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:02:00" (1/1) ... [2024-11-08 18:02:00,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0f9b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:00, skipping insertion in model container [2024-11-08 18:02:00,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:02:00" (1/1) ... [2024-11-08 18:02:00,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:02:01,190 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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i[915,928] [2024-11-08 18:02:01,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:02:01,322 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:02:01,343 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_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-68.i[915,928] [2024-11-08 18:02:01,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:02:01,424 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:02:01,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01 WrapperNode [2024-11-08 18:02:01,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:02:01,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:02:01,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:02:01,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:02:01,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,502 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-11-08 18:02:01,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:02:01,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:02:01,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:02:01,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:02:01,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,555 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 18:02:01,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:02:01,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:02:01,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:02:01,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:02:01,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (1/1) ... [2024-11-08 18:02:01,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:02:01,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:02:01,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:02:01,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:02:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:02:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:02:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:02:01,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:02:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:02:01,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:02:01,941 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:02:01,944 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:02:02,883 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 18:02:02,883 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:02:02,899 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:02:02,900 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:02:02,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:02:02 BoogieIcfgContainer [2024-11-08 18:02:02,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:02:02,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:02:02,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:02:02,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:02:02,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:02:00" (1/3) ... [2024-11-08 18:02:02,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1df1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:02:02, skipping insertion in model container [2024-11-08 18:02:02,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:02:01" (2/3) ... [2024-11-08 18:02:02,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1df1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:02:02, skipping insertion in model container [2024-11-08 18:02:02,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:02:02" (3/3) ... [2024-11-08 18:02:02,912 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-68.i [2024-11-08 18:02:02,935 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:02:02,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:02:03,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:02:03,023 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;@14ceb127, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:02:03,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:02:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 18:02:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 18:02:03,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:03,043 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:03,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:03,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:03,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1266524598, now seen corresponding path program 1 times [2024-11-08 18:02:03,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:03,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399966729] [2024-11-08 18:02:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:03,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:03,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:02:03,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:02:03,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 18:02:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:03,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:02:03,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 18:02:03,499 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:02:03,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:02:03,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399966729] [2024-11-08 18:02:03,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399966729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:02:03,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:02:03,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:02:03,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302462131] [2024-11-08 18:02:03,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:02:03,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:02:03,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:02:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:02:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:02:03,546 INFO L87 Difference]: Start difference. First operand has 49 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:03,592 INFO L93 Difference]: Finished difference Result 91 states and 146 transitions. [2024-11-08 18:02:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:02:03,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2024-11-08 18:02:03,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:03,606 INFO L225 Difference]: With dead ends: 91 [2024-11-08 18:02:03,607 INFO L226 Difference]: Without dead ends: 45 [2024-11-08 18:02:03,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 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 18:02:03,620 INFO L432 NwaCegarLoop]: 64 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, 64 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 18:02:03,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:02:03,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-08 18:02:03,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-08 18:02:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 18:02:03,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2024-11-08 18:02:03,690 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 75 [2024-11-08 18:02:03,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:03,691 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2024-11-08 18:02:03,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-11-08 18:02:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 18:02:03,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:03,700 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:03,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:02:03,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:03,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:03,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:03,903 INFO L85 PathProgramCache]: Analyzing trace with hash 464585778, now seen corresponding path program 1 times [2024-11-08 18:02:03,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:03,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982788781] [2024-11-08 18:02:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:03,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:03,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:02:03,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:02:03,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 18:02:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:04,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:02:04,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:02:04,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:02:04,715 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:02:04,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982788781] [2024-11-08 18:02:04,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982788781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:02:04,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:02:04,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:02:04,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064313554] [2024-11-08 18:02:04,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:02:04,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:02:04,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:02:04,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:02:04,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:02:04,720 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:06,689 INFO L93 Difference]: Finished difference Result 188 states and 269 transitions. [2024-11-08 18:02:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:02:06,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2024-11-08 18:02:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:06,700 INFO L225 Difference]: With dead ends: 188 [2024-11-08 18:02:06,700 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 18:02:06,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:02:06,703 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 136 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:06,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 298 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:02:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 18:02:06,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 73. [2024-11-08 18:02:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:02:06,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 105 transitions. [2024-11-08 18:02:06,748 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 105 transitions. Word has length 75 [2024-11-08 18:02:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:06,749 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 105 transitions. [2024-11-08 18:02:06,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 105 transitions. [2024-11-08 18:02:06,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 18:02:06,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:06,752 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:06,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:02:06,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:06,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:06,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:06,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1165650356, now seen corresponding path program 1 times [2024-11-08 18:02:06,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:06,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128272961] [2024-11-08 18:02:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:06,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:06,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:02:06,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:02:06,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 18:02:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:07,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:02:07,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:07,268 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:02:07,268 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:02:07,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:02:07,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128272961] [2024-11-08 18:02:07,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128272961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:02:07,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:02:07,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:02:07,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305777072] [2024-11-08 18:02:07,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:02:07,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:02:07,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:02:07,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:02:07,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:02:07,273 INFO L87 Difference]: Start difference. First operand 73 states and 105 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:07,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:07,743 INFO L93 Difference]: Finished difference Result 115 states and 166 transitions. [2024-11-08 18:02:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:02:07,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2024-11-08 18:02:07,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:07,758 INFO L225 Difference]: With dead ends: 115 [2024-11-08 18:02:07,759 INFO L226 Difference]: Without dead ends: 73 [2024-11-08 18:02:07,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:02:07,763 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 58 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:07,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 105 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:02:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-08 18:02:07,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-08 18:02:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.28) internal successors, (64), 50 states have internal predecessors, (64), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:02:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 104 transitions. [2024-11-08 18:02:07,800 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 104 transitions. Word has length 75 [2024-11-08 18:02:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:07,801 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 104 transitions. [2024-11-08 18:02:07,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 104 transitions. [2024-11-08 18:02:07,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 18:02:07,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:07,804 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:07,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:02:08,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:08,006 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:08,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:08,006 INFO L85 PathProgramCache]: Analyzing trace with hash -255876181, now seen corresponding path program 1 times [2024-11-08 18:02:08,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:08,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047121880] [2024-11-08 18:02:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:08,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:08,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:02:08,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:02:08,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 18:02:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:08,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:02:08,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 109 proven. 30 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-08 18:02:09,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:02:11,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:02:11,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047121880] [2024-11-08 18:02:11,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047121880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:02:11,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041045036] [2024-11-08 18:02:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:11,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:02:11,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:02:11,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:02:11,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:02:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:12,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:02:12,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:14,736 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 93 proven. 9 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-08 18:02:14,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:02:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:02:18,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041045036] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:02:18,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:02:18,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13, 11] total 31 [2024-11-08 18:02:18,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654557499] [2024-11-08 18:02:18,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:02:18,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:02:18,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:02:18,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:02:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1060, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 18:02:18,670 INFO L87 Difference]: Start difference. First operand 73 states and 104 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:27,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:27,175 INFO L93 Difference]: Finished difference Result 191 states and 256 transitions. [2024-11-08 18:02:27,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:02:27,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 76 [2024-11-08 18:02:27,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:27,180 INFO L225 Difference]: With dead ends: 191 [2024-11-08 18:02:27,180 INFO L226 Difference]: Without dead ends: 149 [2024-11-08 18:02:27,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=196, Invalid=1526, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 18:02:27,183 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 161 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:27,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 313 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 18:02:27,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-08 18:02:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 90. [2024-11-08 18:02:27,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 65 states have internal predecessors, (82), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:02:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2024-11-08 18:02:27,208 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 76 [2024-11-08 18:02:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:27,209 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2024-11-08 18:02:27,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2024-11-08 18:02:27,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 18:02:27,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:27,212 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:27,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-08 18:02:27,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:02:27,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:02:27,613 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:27,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1519131181, now seen corresponding path program 1 times [2024-11-08 18:02:27,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:27,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259417780] [2024-11-08 18:02:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:27,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:27,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:02:27,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:02:27,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-08 18:02:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:27,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:02:27,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:28,113 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 43 proven. 24 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-08 18:02:28,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:02:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-08 18:02:28,411 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:02:28,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259417780] [2024-11-08 18:02:28,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259417780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:02:28,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:02:28,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-08 18:02:28,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907873842] [2024-11-08 18:02:28,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:02:28,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:02:28,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:02:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:02:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:02:28,415 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 18:02:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:29,152 INFO L93 Difference]: Finished difference Result 161 states and 211 transitions. [2024-11-08 18:02:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:02:29,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 76 [2024-11-08 18:02:29,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:29,162 INFO L225 Difference]: With dead ends: 161 [2024-11-08 18:02:29,163 INFO L226 Difference]: Without dead ends: 104 [2024-11-08 18:02:29,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:02:29,165 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 25 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:29,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 200 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:02:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-08 18:02:29,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2024-11-08 18:02:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:02:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2024-11-08 18:02:29,208 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 76 [2024-11-08 18:02:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:29,209 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2024-11-08 18:02:29,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 18:02:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2024-11-08 18:02:29,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 18:02:29,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:29,211 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:29,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-08 18:02:29,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:29,415 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:29,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:29,416 INFO L85 PathProgramCache]: Analyzing trace with hash 424182189, now seen corresponding path program 1 times [2024-11-08 18:02:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344242199] [2024-11-08 18:02:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:29,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:02:29,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:02:29,421 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:02:29,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7c9977-5c28-4ea7-bddc-bb931ac0d6e5/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-08 18:02:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:29,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:02:29,649 INFO L278 TraceCheckSpWp]: Computing forward predicates...