./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU --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 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:07,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:07,457 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:12:07,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:07,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:07,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:07,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:07,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:07,528 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:07,528 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:07,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:07,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:07,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:07,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:07,531 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:07,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:07,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:12:07,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:07,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:07,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:07,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:07,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:12:07,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:07,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:12:07,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:07,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:07,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:07,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:07,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:07,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:07,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:07,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:07,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:07,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:07,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:07,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:12:07,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:07,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:07,562 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:07,562 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:07,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:07,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:07,563 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc [2024-10-31 22:12:07,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:07,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:07,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:07,913 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:07,914 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:07,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i Unable to find full path for "g++" [2024-10-31 22:12:10,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:10,311 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:10,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i [2024-10-31 22:12:10,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data/fa5a6440e/e29245c6a6974675b5f73074d0dd3edc/FLAG6d3591d8c [2024-10-31 22:12:10,575 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data/fa5a6440e/e29245c6a6974675b5f73074d0dd3edc [2024-10-31 22:12:10,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:10,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:10,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:10,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:10,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:10,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11311d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10, skipping insertion in model container [2024-10-31 22:12:10,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,619 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:10,822 WARN L251 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2024-10-31 22:12:10,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:10,874 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:10,888 WARN L251 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2024-10-31 22:12:10,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:10,924 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:10,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10 WrapperNode [2024-10-31 22:12:10,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:10,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:10,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:10,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:10,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,966 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-10-31 22:12:10,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:10,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:10,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:10,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:10,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,995 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]. [2024-10-31 22:12:10,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:10,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:11,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:11,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:11,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:11,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:11,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:11,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:11,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:11,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:11,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (1/1) ... [2024-10-31 22:12:11,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:11,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:11,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:11,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:12:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:12:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:12:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:11,142 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:11,145 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:11,394 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-31 22:12:11,394 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:11,407 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:11,407 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:12:11,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:11 BoogieIcfgContainer [2024-10-31 22:12:11,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:11,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:11,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:11,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:11,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:10" (1/3) ... [2024-10-31 22:12:11,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab67a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:11, skipping insertion in model container [2024-10-31 22:12:11,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:10" (2/3) ... [2024-10-31 22:12:11,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab67a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:11, skipping insertion in model container [2024-10-31 22:12:11,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:11" (3/3) ... [2024-10-31 22:12:11,419 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-37.i [2024-10-31 22:12:11,442 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:11,442 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:12:11,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:11,516 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;@5e9beb1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:11,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:12:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:12:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:12:11,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:11,536 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:11,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:12:11,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:11,545 INFO L85 PathProgramCache]: Analyzing trace with hash -861756449, now seen corresponding path program 1 times [2024-10-31 22:12:11,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:11,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697120150] [2024-10-31 22:12:11,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:12:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-31 22:12:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:12:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:12:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:12:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-31 22:12:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:12:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:12:13,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:13,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697120150] [2024-10-31 22:12:13,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697120150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:13,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:13,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:12:13,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880798044] [2024-10-31 22:12:13,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:13,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:13,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:13,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:13,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:13,129 INFO L87 Difference]: Start difference. First operand has 41 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-31 22:12:13,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:13,309 INFO L93 Difference]: Finished difference Result 92 states and 145 transitions. [2024-10-31 22:12:13,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:13,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-10-31 22:12:13,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:13,323 INFO L225 Difference]: With dead ends: 92 [2024-10-31 22:12:13,324 INFO L226 Difference]: Without dead ends: 54 [2024-10-31 22:12:13,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:12:13,336 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 15 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:13,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 245 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:13,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-31 22:12:13,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2024-10-31 22:12:13,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.162162162162162) internal successors, (43), 38 states have internal predecessors, (43), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 22:12:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2024-10-31 22:12:13,396 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 74 [2024-10-31 22:12:13,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:13,400 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2024-10-31 22:12:13,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-31 22:12:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2024-10-31 22:12:13,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:12:13,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:13,405 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:13,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:13,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:12:13,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:13,406 INFO L85 PathProgramCache]: Analyzing trace with hash 913250913, now seen corresponding path program 1 times [2024-10-31 22:12:13,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:13,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434653208] [2024-10-31 22:12:13,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:13,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:13,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:13,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:13,568 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:12:13,570 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:12:13,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:13,576 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-31 22:12:13,649 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:12:13,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:12:13 BoogieIcfgContainer [2024-10-31 22:12:13,655 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:12:13,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:12:13,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:12:13,656 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:12:13,657 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:11" (3/4) ... [2024-10-31 22:12:13,661 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:12:13,663 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:12:13,663 INFO L158 Benchmark]: Toolchain (without parser) took 3083.85ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 102.9MB in the beginning and 81.3MB in the end (delta: 21.6MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-10-31 22:12:13,665 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:13,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.67ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 89.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:12:13,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.17ms. Allocated memory is still 134.2MB. Free memory was 89.1MB in the beginning and 87.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:13,667 INFO L158 Benchmark]: Boogie Preprocessor took 41.46ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:13,667 INFO L158 Benchmark]: RCFGBuilder took 398.62ms. Allocated memory is still 134.2MB. Free memory was 85.4MB in the beginning and 73.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:12:13,668 INFO L158 Benchmark]: TraceAbstraction took 2244.81ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 72.2MB in the beginning and 82.4MB in the end (delta: -10.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-10-31 22:12:13,668 INFO L158 Benchmark]: Witness Printer took 6.92ms. Allocated memory is still 161.5MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:13,671 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.67ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 89.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.17ms. Allocated memory is still 134.2MB. Free memory was 89.1MB in the beginning and 87.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.46ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 398.62ms. Allocated memory is still 134.2MB. Free memory was 85.4MB in the beginning and 73.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2244.81ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 72.2MB in the beginning and 82.4MB in the end (delta: -10.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Witness Printer took 6.92ms. Allocated memory is still 161.5MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 71. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -25; [L23] double var_1_2 = 0.19999999999999996; [L24] double var_1_3 = 9.4; [L25] signed long int var_1_4 = 50; [L26] unsigned long int var_1_5 = 32; [L27] unsigned char var_1_6 = 1; [L28] unsigned char var_1_7 = 1; [L29] double var_1_8 = 9.75; [L30] double var_1_9 = 49.8; VAL [isInitial=0, var_1_1=-25, var_1_2=4999999999999999/25000000000000000, var_1_3=47/5, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L75] isInitial = 1 [L76] FCALL initially() [L77] COND TRUE 1 [L78] FCALL updateLastVariables() [L79] CALL updateVariables() [L49] var_1_2 = __VERIFIER_nondet_double() [L50] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=47/5, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=47/5, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L50] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_3=47/5, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L51] var_1_3 = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L52] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L53] var_1_4 = __VERIFIER_nondet_long() [L54] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L54] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L55] CALL assume_abort_if_not(var_1_4 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L55] RET assume_abort_if_not(var_1_4 <= 2147483646) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L56] var_1_6 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L57] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L58] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L58] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L59] var_1_7 = __VERIFIER_nondet_uchar() [L60] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_8=39/4, var_1_9=249/5] [L60] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_8=39/4, var_1_9=249/5] [L61] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_8=39/4, var_1_9=249/5] [L61] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_8=39/4, var_1_9=249/5] [L62] var_1_8 = __VERIFIER_nondet_double() [L63] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_9=249/5] [L63] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_9=249/5] [L64] CALL assume_abort_if_not(var_1_8 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_9=249/5] [L64] RET assume_abort_if_not(var_1_8 != 0.0F) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0, var_1_9=249/5] [L65] var_1_9 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0] [L66] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0] [L79] RET updateVariables() [L80] CALL step() [L34] COND FALSE !(var_1_2 < var_1_3) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0] [L37] unsigned char stepLocal_0 = var_1_6; VAL [isInitial=1, stepLocal_0=-255, var_1_1=-25, var_1_4=2147483646, var_1_5=32, var_1_6=-255, var_1_7=0] [L38] COND FALSE !(stepLocal_0 && var_1_7) [L45] var_1_5 = var_1_4 VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=2147483646, var_1_6=-255, var_1_7=0] [L80] RET step() [L81] CALL, EXPR property() [L71-L72] return ((var_1_2 < var_1_3) ? (var_1_1 == ((signed long int) (2 - var_1_4))) : 1) && ((var_1_6 && var_1_7) ? ((var_1_3 < ((var_1_2 / var_1_8) + var_1_9)) ? (var_1_5 == ((unsigned long int) var_1_4)) : (var_1_5 == ((unsigned long int) var_1_4))) : (var_1_5 == ((unsigned long int) var_1_4))) ; VAL [\result=0, isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=2147483646, var_1_6=-255, var_1_7=0] [L81] RET, EXPR property() [L81] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=2147483646, var_1_6=-255, var_1_7=0] [L19] reach_error() VAL [isInitial=1, var_1_1=-25, var_1_4=2147483646, var_1_5=2147483646, var_1_6=-255, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 245 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 190 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 55 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 220/220 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 [2024-10-31 22:12:13,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU --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 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:16,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:16,329 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-31 22:12:16,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:16,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:16,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:16,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:16,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:16,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:16,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:16,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:16,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:16,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:16,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:16,378 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:16,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:16,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:12:16,379 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:16,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:16,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:16,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:12:16,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:16,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:12:16,385 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:12:16,386 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:12:16,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:16,386 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:12:16,387 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:16,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:16,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:16,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:16,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:16,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:16,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:16,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:16,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:16,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:16,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:12:16,395 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:12:16,395 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:12:16,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:16,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:16,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:16,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:16,397 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:12:16,397 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc [2024-10-31 22:12:16,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:16,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:16,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:16,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:16,897 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:16,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i Unable to find full path for "g++" [2024-10-31 22:12:18,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:19,300 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:19,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i [2024-10-31 22:12:19,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data/68689b0eb/63a526834d774dfd809c9195bcbf83fd/FLAG55bc766ab [2024-10-31 22:12:19,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/data/68689b0eb/63a526834d774dfd809c9195bcbf83fd [2024-10-31 22:12:19,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:19,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:19,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:19,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:19,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:19,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@937c22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19, skipping insertion in model container [2024-10-31 22:12:19,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:19,612 WARN L251 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2024-10-31 22:12:19,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:19,712 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:19,734 WARN L251 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_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2024-10-31 22:12:19,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:19,790 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:19,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19 WrapperNode [2024-10-31 22:12:19,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:19,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:19,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:19,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:19,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,855 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-10-31 22:12:19,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:19,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:19,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:19,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:19,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,874 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,886 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]. [2024-10-31 22:12:19,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,898 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:19,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:19,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:19,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:19,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (1/1) ... [2024-10-31 22:12:19,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:19,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:19,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:19,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:12:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:12:19,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:12:19,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:19,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:20,069 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:20,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:28,581 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-31 22:12:28,581 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:28,598 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:28,599 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:12:28,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:28 BoogieIcfgContainer [2024-10-31 22:12:28,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:28,606 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:28,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:28,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:28,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:19" (1/3) ... [2024-10-31 22:12:28,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60924b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:28, skipping insertion in model container [2024-10-31 22:12:28,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:19" (2/3) ... [2024-10-31 22:12:28,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60924b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:28, skipping insertion in model container [2024-10-31 22:12:28,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:28" (3/3) ... [2024-10-31 22:12:28,613 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-37.i [2024-10-31 22:12:28,632 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:28,633 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:12:28,718 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:28,727 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;@640264ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:28,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:12:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:12:28,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:12:28,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:28,748 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:28,749 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:12:28,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash -861756449, now seen corresponding path program 1 times [2024-10-31 22:12:28,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:12:28,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570790973] [2024-10-31 22:12:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:28,775 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 [2024-10-31 22:12:28,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:12:28,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:12:28,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ac92c69-d665-4ca1-bcd1-58b4e98c302b/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:12:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:29,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:12:29,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:12:29,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:29,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:12:29,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570790973] [2024-10-31 22:12:29,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570790973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:29,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:29,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:12:29,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249595858] [2024-10-31 22:12:29,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:29,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:12:29,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:29,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:29,693 INFO L87 Difference]: Start difference. First operand has 41 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-31 22:12:34,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-31 22:12:38,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-31 22:12:42,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-31 22:12:46,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []