./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:59:04,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:59:04,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:59:04,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:59:04,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:59:04,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:59:04,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:59:04,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:59:04,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:59:04,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:59:04,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:59:04,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:59:04,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:59:04,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:59:04,556 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:59:04,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:59:04,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:59:04,557 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:59:04,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:59:04,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:59:04,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:59:04,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:59:04,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:59:04,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:59:04,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:59:04,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:59:04,559 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:59:04,559 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:59:04,559 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:59:04,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:04,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:04,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:04,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:04,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:59:04,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:04,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:04,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:04,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:04,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:59:04,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:59:04,561 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:59:04,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:59:04,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:59:04,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:59:04,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:59:04,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:59:04,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:59:04,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:59:04,563 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c [2024-11-28 03:59:04,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:59:04,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:59:04,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:59:04,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:59:04,953 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:59:04,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2024-11-28 03:59:08,730 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/b871c157e/fd19c24c165342ddb08c58cf63039986/FLAG29d2d6945 [2024-11-28 03:59:09,077 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:59:09,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2024-11-28 03:59:09,087 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/b871c157e/fd19c24c165342ddb08c58cf63039986/FLAG29d2d6945 [2024-11-28 03:59:09,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/b871c157e/fd19c24c165342ddb08c58cf63039986 [2024-11-28 03:59:09,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:59:09,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:59:09,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:09,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:59:09,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:59:09,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c03fdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09, skipping insertion in model container [2024-11-28 03:59:09,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:59:09,386 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_cd90822d-8f41-4443-a4b0-14824512dde9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2024-11-28 03:59:09,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:09,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:59:09,479 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_cd90822d-8f41-4443-a4b0-14824512dde9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2024-11-28 03:59:09,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:09,532 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:59:09,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09 WrapperNode [2024-11-28 03:59:09,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:09,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:09,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:59:09,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:59:09,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,594 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2024-11-28 03:59:09,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:09,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:59:09,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:59:09,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:59:09,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,640 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:59:09,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:59:09,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:59:09,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:59:09,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:59:09,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (1/1) ... [2024-11-28 03:59:09,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:09,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:09,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:59:09,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:59:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:59:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:59:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:59:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:59:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:59:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:59:09,866 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:59:09,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:59:10,167 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 03:59:10,167 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:59:10,187 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:59:10,187 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:59:10,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:10 BoogieIcfgContainer [2024-11-28 03:59:10,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:59:10,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:59:10,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:59:10,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:59:10,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:59:09" (1/3) ... [2024-11-28 03:59:10,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6124da2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:10, skipping insertion in model container [2024-11-28 03:59:10,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:09" (2/3) ... [2024-11-28 03:59:10,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6124da2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:10, skipping insertion in model container [2024-11-28 03:59:10,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:10" (3/3) ... [2024-11-28 03:59:10,207 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-25.i [2024-11-28 03:59:10,233 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:59:10,237 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-25.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:59:10,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:59:10,346 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;@1cc87d98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:59:10,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:59:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:59:10,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:59:10,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:10,366 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:10,366 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:10,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:10,377 INFO L85 PathProgramCache]: Analyzing trace with hash 941058505, now seen corresponding path program 1 times [2024-11-28 03:59:10,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:10,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039833345] [2024-11-28 03:59:10,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:10,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-28 03:59:10,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:10,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039833345] [2024-11-28 03:59:10,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039833345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:10,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138770428] [2024-11-28 03:59:10,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:10,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:10,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:10,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:10,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:59:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:10,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:59:10,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-28 03:59:10,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:10,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138770428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:10,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:10,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:59:10,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946576176] [2024-11-28 03:59:10,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:10,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:59:10,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:10,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:59:10,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:59:10,890 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:59:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:10,922 INFO L93 Difference]: Finished difference Result 59 states and 90 transitions. [2024-11-28 03:59:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:59:10,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-28 03:59:10,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:10,931 INFO L225 Difference]: With dead ends: 59 [2024-11-28 03:59:10,931 INFO L226 Difference]: Without dead ends: 29 [2024-11-28 03:59:10,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:59:10,939 INFO L435 NwaCegarLoop]: 38 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, 38 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 [2024-11-28 03:59:10,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:59:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-28 03:59:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-28 03:59:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:59:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-11-28 03:59:10,998 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 44 [2024-11-28 03:59:10,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:10,998 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-11-28 03:59:10,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:59:10,999 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-28 03:59:11,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:59:11,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:11,001 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:11,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:59:11,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:59:11,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:11,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1760285773, now seen corresponding path program 1 times [2024-11-28 03:59:11,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:11,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956522042] [2024-11-28 03:59:11,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:11,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:59:11,303 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:59:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:59:11,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:59:11,437 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:59:11,439 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:59:11,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:59:11,450 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 03:59:11,512 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:59:11,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:59:11 BoogieIcfgContainer [2024-11-28 03:59:11,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:59:11,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:59:11,522 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:59:11,522 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:59:11,524 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:10" (3/4) ... [2024-11-28 03:59:11,527 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:59:11,529 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:59:11,531 INFO L158 Benchmark]: Toolchain (without parser) took 2414.91ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 88.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-28 03:59:11,532 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:59:11,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.54ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 81.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:59:11,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.20ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:59:11,534 INFO L158 Benchmark]: Boogie Preprocessor took 78.22ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:59:11,535 INFO L158 Benchmark]: RCFGBuilder took 513.33ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 67.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:59:11,535 INFO L158 Benchmark]: TraceAbstraction took 1328.62ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 89.0MB in the end (delta: -21.9MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-11-28 03:59:11,535 INFO L158 Benchmark]: Witness Printer took 7.12ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 88.5MB in the end (delta: 545.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:59:11,537 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.54ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 81.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.20ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.22ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 513.33ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 67.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1328.62ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 89.0MB in the end (delta: -21.9MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Witness Printer took 7.12ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 88.5MB in the end (delta: 545.0kB). 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 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.742; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] double var_1_4 = 1.625; [L26] double var_1_5 = 8.25; VAL [isInitial=0, var_1_1=371/500, var_1_2=1, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L65] isInitial = 1 [L66] FCALL initially() [L68] FCALL updateLastVariables() [L69] CALL updateVariables() [L47] var_1_2 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L48] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L49] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L49] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L50] var_1_3 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_4=13/8, var_1_5=33/4] [L51] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_4=13/8, var_1_5=33/4] [L52] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L52] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L53] var_1_4 = __VERIFIER_nondet_double() [L54] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_5=33/4] [L54] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_5=33/4] [L55] var_1_5 = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1] [L56] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1] [L69] RET updateVariables() [L70] CALL step() [L30] COND FALSE !(\read(var_1_2)) [L43] var_1_1 = var_1_5 VAL [isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] [L70] RET step() [L71] CALL, EXPR property() [L61-L62] return var_1_2 ? ((! var_1_3) ? (var_1_3 ? (var_1_1 == ((double) ((((var_1_4) < (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) ? (var_1_4) : (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))))) : 1) : ((var_1_5 <= var_1_4) ? (var_1_1 == ((double) var_1_4)) : (var_1_1 == ((double) 199.5)))) : (var_1_1 == ((double) var_1_5)) ; VAL [\result=0, isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] [L71] RET, EXPR property() [L71] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] [L19] reach_error() VAL [isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 110/120 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:59:11,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:59:14,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:59:15,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:59:15,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:59:15,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:59:15,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:59:15,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:59:15,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:59:15,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:59:15,168 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:59:15,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:59:15,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:59:15,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:59:15,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:59:15,170 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:59:15,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:59:15,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:59:15,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:59:15,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:59:15,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:59:15,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:59:15,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:59:15,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:59:15,173 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:59:15,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:59:15,173 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:59:15,173 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:59:15,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:59:15,174 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:59:15,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:59:15,174 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:59:15,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:15,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:15,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:15,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:15,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:15,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:59:15,175 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:59:15,176 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:59:15,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:59:15,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:59:15,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:59:15,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:59:15,176 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c [2024-11-28 03:59:15,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:59:15,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:59:15,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:59:15,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:59:15,592 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:59:15,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2024-11-28 03:59:19,553 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/595aa2a77/e026338d6df24b4ab1da03e6a5166e71/FLAGc6cf8f4e5 [2024-11-28 03:59:19,901 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:59:19,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2024-11-28 03:59:19,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/595aa2a77/e026338d6df24b4ab1da03e6a5166e71/FLAGc6cf8f4e5 [2024-11-28 03:59:20,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/data/595aa2a77/e026338d6df24b4ab1da03e6a5166e71 [2024-11-28 03:59:20,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:59:20,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:59:20,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:20,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:59:20,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:59:20,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8a932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20, skipping insertion in model container [2024-11-28 03:59:20,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:59:20,417 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_cd90822d-8f41-4443-a4b0-14824512dde9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2024-11-28 03:59:20,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:20,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:59:20,487 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_cd90822d-8f41-4443-a4b0-14824512dde9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2024-11-28 03:59:20,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:20,524 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:59:20,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20 WrapperNode [2024-11-28 03:59:20,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:20,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:20,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:59:20,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:59:20,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,570 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2024-11-28 03:59:20,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:20,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:59:20,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:59:20,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:59:20,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,601 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:59:20,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,611 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:59:20,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:59:20,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:59:20,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:59:20,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (1/1) ... [2024-11-28 03:59:20,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:20,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:20,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:59:20,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:59:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:59:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:59:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:59:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:59:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:59:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:59:20,816 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:59:20,818 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:59:21,089 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 03:59:21,090 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:59:21,102 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:59:21,103 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:59:21,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:21 BoogieIcfgContainer [2024-11-28 03:59:21,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:59:21,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:59:21,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:59:21,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:59:21,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:59:20" (1/3) ... [2024-11-28 03:59:21,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a87684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:21, skipping insertion in model container [2024-11-28 03:59:21,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:20" (2/3) ... [2024-11-28 03:59:21,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a87684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:21, skipping insertion in model container [2024-11-28 03:59:21,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:21" (3/3) ... [2024-11-28 03:59:21,119 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-25.i [2024-11-28 03:59:21,142 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:59:21,144 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-25.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:59:21,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:59:21,228 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;@4aa8cf1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:59:21,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:59:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:59:21,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:59:21,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:21,245 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:21,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:21,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash 941058505, now seen corresponding path program 1 times [2024-11-28 03:59:21,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:21,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428490802] [2024-11-28 03:59:21,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:21,269 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 [2024-11-28 03:59:21,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:21,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:59:21,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:21,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:59:21,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 03:59:21,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:21,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:21,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428490802] [2024-11-28 03:59:21,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428490802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:21,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:21,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:59:21,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6103158] [2024-11-28 03:59:21,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:21,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:59:21,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:21,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:59:21,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:59:21,552 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:59:21,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:21,572 INFO L93 Difference]: Finished difference Result 59 states and 90 transitions. [2024-11-28 03:59:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:59:21,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-28 03:59:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:21,581 INFO L225 Difference]: With dead ends: 59 [2024-11-28 03:59:21,581 INFO L226 Difference]: Without dead ends: 29 [2024-11-28 03:59:21,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:59:21,588 INFO L435 NwaCegarLoop]: 38 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, 38 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 [2024-11-28 03:59:21,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:59:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-28 03:59:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-28 03:59:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:59:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-11-28 03:59:21,636 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 44 [2024-11-28 03:59:21,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:21,636 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-11-28 03:59:21,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:59:21,637 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-28 03:59:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:59:21,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:21,641 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:21,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:21,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:21,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:21,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:21,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1760285773, now seen corresponding path program 1 times [2024-11-28 03:59:21,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:21,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484921752] [2024-11-28 03:59:21,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:21,844 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 [2024-11-28 03:59:21,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:21,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:59:21,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:21,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:59:21,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 03:59:32,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:32,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:32,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484921752] [2024-11-28 03:59:32,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484921752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:32,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:32,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:59:32,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778105424] [2024-11-28 03:59:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:32,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:59:32,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:32,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:59:32,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:59:32,482 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:33,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:33,757 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2024-11-28 03:59:33,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:59:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-11-28 03:59:33,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:33,761 INFO L225 Difference]: With dead ends: 43 [2024-11-28 03:59:33,762 INFO L226 Difference]: Without dead ends: 41 [2024-11-28 03:59:33,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:59:33,764 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 56 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:33,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 121 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:59:33,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-28 03:59:33,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2024-11-28 03:59:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:59:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2024-11-28 03:59:33,786 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 44 [2024-11-28 03:59:33,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:33,786 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2024-11-28 03:59:33,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:33,787 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-28 03:59:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:59:33,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:33,788 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:33,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 03:59:33,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:33,989 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:33,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:33,990 INFO L85 PathProgramCache]: Analyzing trace with hash -796364099, now seen corresponding path program 1 times [2024-11-28 03:59:33,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:33,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812597858] [2024-11-28 03:59:33,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:33,991 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 [2024-11-28 03:59:33,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:33,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:59:33,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:34,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:59:34,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:59:34,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:34,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:34,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812597858] [2024-11-28 03:59:34,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812597858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:34,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:34,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:34,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650976994] [2024-11-28 03:59:34,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:34,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:59:34,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:34,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:59:34,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:59:34,158 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:34,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:34,229 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2024-11-28 03:59:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:59:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2024-11-28 03:59:34,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:34,234 INFO L225 Difference]: With dead ends: 84 [2024-11-28 03:59:34,235 INFO L226 Difference]: Without dead ends: 51 [2024-11-28 03:59:34,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:59:34,237 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:34,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:59:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-28 03:59:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2024-11-28 03:59:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:59:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2024-11-28 03:59:34,258 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 46 [2024-11-28 03:59:34,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:34,259 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2024-11-28 03:59:34,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2024-11-28 03:59:34,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:59:34,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:34,263 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:34,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 03:59:34,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:34,464 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:34,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:34,468 INFO L85 PathProgramCache]: Analyzing trace with hash -794517057, now seen corresponding path program 1 times [2024-11-28 03:59:34,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:34,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100796756] [2024-11-28 03:59:34,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:34,469 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 [2024-11-28 03:59:34,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:34,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:59:34,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:34,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:59:34,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:59:38,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:38,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:38,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100796756] [2024-11-28 03:59:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100796756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:38,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:38,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:59:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532316377] [2024-11-28 03:59:38,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:38,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:59:38,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:38,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:59:38,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:59:38,640 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:38,835 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2024-11-28 03:59:38,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:59:38,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2024-11-28 03:59:38,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:38,839 INFO L225 Difference]: With dead ends: 53 [2024-11-28 03:59:38,839 INFO L226 Difference]: Without dead ends: 51 [2024-11-28 03:59:38,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:59:38,840 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 17 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:38,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 151 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-28 03:59:38,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2024-11-28 03:59:38,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:59:38,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2024-11-28 03:59:38,854 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 46 [2024-11-28 03:59:38,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:38,854 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2024-11-28 03:59:38,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:38,855 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2024-11-28 03:59:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:59:38,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:38,856 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:38,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:39,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:39,060 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:39,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash -559942723, now seen corresponding path program 1 times [2024-11-28 03:59:39,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:39,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330981730] [2024-11-28 03:59:39,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:39,061 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 [2024-11-28 03:59:39,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:39,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:59:39,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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)] Waiting until timeout for monitored process [2024-11-28 03:59:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:39,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:59:39,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:42,860 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:59:42,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:59:45,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:45,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330981730] [2024-11-28 03:59:45,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330981730] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:45,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:45,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2024-11-28 03:59:45,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028697010] [2024-11-28 03:59:45,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:45,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:59:45,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:45,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:59:45,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:59:45,406 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:46,649 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2024-11-28 03:59:46,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:59:46,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2024-11-28 03:59:46,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:46,651 INFO L225 Difference]: With dead ends: 61 [2024-11-28 03:59:46,651 INFO L226 Difference]: Without dead ends: 59 [2024-11-28 03:59:46,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:59:46,653 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 21 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:46,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 145 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:59:46,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-28 03:59:46,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2024-11-28 03:59:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:59:46,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2024-11-28 03:59:46,664 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 46 [2024-11-28 03:59:46,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:46,664 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2024-11-28 03:59:46,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2024-11-28 03:59:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:59:46,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:46,666 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:46,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 03:59:46,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:46,867 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:46,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:46,868 INFO L85 PathProgramCache]: Analyzing trace with hash -558095681, now seen corresponding path program 1 times [2024-11-28 03:59:46,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:59:46,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516364098] [2024-11-28 03:59:46,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:46,868 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 [2024-11-28 03:59:46,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:59:46,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:59:46,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:46,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:59:46,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:59:48,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:48,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:59:48,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516364098] [2024-11-28 03:59:48,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516364098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:48,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:48,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:59:48,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762207709] [2024-11-28 03:59:48,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:48,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:59:48,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:59:48,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:59:48,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:59:48,283 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:48,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:48,751 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2024-11-28 03:59:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:59:48,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2024-11-28 03:59:48,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:48,754 INFO L225 Difference]: With dead ends: 57 [2024-11-28 03:59:48,754 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:59:48,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:59:48,756 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 20 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:48,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 191 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:59:48,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:59:48,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:59:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:59:48,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2024-11-28 03:59:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:48,758 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:59:48,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:59:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:59:48,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:59:48,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:59:48,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:48,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:59:48,968 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 03:59:48,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:59:51,205 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:59:51,218 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:59:51,218 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:59:51,219 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:59:51,219 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:59:51,219 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:59:51,219 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:59:51,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:59:51 BoogieIcfgContainer [2024-11-28 03:59:51,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:59:51,220 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:59:51,220 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:59:51,220 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:59:51,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:21" (3/4) ... [2024-11-28 03:59:51,223 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:59:51,228 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:59:51,233 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-28 03:59:51,233 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:59:51,233 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:59:51,233 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:59:51,329 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:59:51,330 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:59:51,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:59:51,331 INFO L158 Benchmark]: Toolchain (without parser) took 31162.24ms. Allocated memory was 83.9MB in the beginning and 486.5MB in the end (delta: 402.7MB). Free memory was 61.0MB in the beginning and 394.8MB in the end (delta: -333.8MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2024-11-28 03:59:51,331 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:59:51,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.30ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 48.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:59:51,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.26ms. Allocated memory is still 83.9MB. Free memory was 48.8MB in the beginning and 47.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:59:51,333 INFO L158 Benchmark]: Boogie Preprocessor took 55.80ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 45.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:59:51,333 INFO L158 Benchmark]: RCFGBuilder took 475.51ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 34.3MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:59:51,334 INFO L158 Benchmark]: TraceAbstraction took 30112.80ms. Allocated memory was 83.9MB in the beginning and 486.5MB in the end (delta: 402.7MB). Free memory was 34.0MB in the beginning and 398.9MB in the end (delta: -364.9MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-28 03:59:51,334 INFO L158 Benchmark]: Witness Printer took 109.46ms. Allocated memory is still 486.5MB. Free memory was 398.9MB in the beginning and 394.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:59:51,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.30ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 48.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.26ms. Allocated memory is still 83.9MB. Free memory was 48.8MB in the beginning and 47.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.80ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 45.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 475.51ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 34.3MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 30112.80ms. Allocated memory was 83.9MB in the beginning and 486.5MB in the end (delta: 402.7MB). Free memory was 34.0MB in the beginning and 398.9MB in the end (delta: -364.9MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Witness Printer took 109.46ms. Allocated memory is still 486.5MB. Free memory was 398.9MB in the beginning and 394.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.8s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 712 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 488 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 224 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, InterpolantAutomatonStates: 36, 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, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 2 QuantifiedInterpolants, 1155 SizeOfPredicates, 26 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 417/420 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:59:51,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd90822d-8f41-4443-a4b0-14824512dde9/bin/uautomizer-verify-aQ6SnzHsRB/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 Writing output log to file Ultimate.log Result: TRUE