./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ --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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:36:32,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:36:32,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 21:36:32,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:36:32,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:36:32,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:36:32,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:36:32,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:36:32,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:36:32,569 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:36:32,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:36:32,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:36:32,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:36:32,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:36:32,574 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:36:32,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:36:32,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:36:32,575 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:36:32,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:36:32,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:36:32,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:36:32,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:36:32,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:36:32,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:36:32,579 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:36:32,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:36:32,580 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:36:32,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:36:32,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:36:32,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:36:32,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:36:32,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:36:32,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:36:32,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:36:32,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:36:32,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:36:32,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:36:32,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:36:32,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:36:32,585 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:36:32,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:36:32,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:36:32,586 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2023-11-23 21:36:32,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:36:32,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:36:32,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:36:32,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:36:32,949 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:36:32,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-23 21:36:36,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:36:36,355 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:36:36,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-23 21:36:36,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data/e853672ab/dd7f8e05ffa744678190c731dbeeba4a/FLAG3e8afa417 [2023-11-23 21:36:36,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data/e853672ab/dd7f8e05ffa744678190c731dbeeba4a [2023-11-23 21:36:36,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:36:36,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:36:36,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:36:36,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:36:36,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:36:36,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666405ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36, skipping insertion in model container [2023-11-23 21:36:36,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,439 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:36:36,613 WARN L240 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_841990c0-ce73-4c7b-965e-3fb1855ca333/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-23 21:36:36,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:36:36,689 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:36:36,702 WARN L240 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_841990c0-ce73-4c7b-965e-3fb1855ca333/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-23 21:36:36,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:36:36,732 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:36:36,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36 WrapperNode [2023-11-23 21:36:36,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:36:36,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:36:36,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:36:36,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:36:36,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,777 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2023-11-23 21:36:36,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:36:36,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:36:36,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:36:36,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:36:36,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,794 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,806 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:36:36,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:36:36,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:36:36,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:36:36,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:36:36,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (1/1) ... [2023-11-23 21:36:36,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:36:36,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:36,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:36:36,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:36:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:36:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:36:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:36:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:36:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:36:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:36:37,012 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:36:37,016 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:36:37,291 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:36:37,356 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:36:37,356 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:36:37,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:37 BoogieIcfgContainer [2023-11-23 21:36:37,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:36:37,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:36:37,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:36:37,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:36:37,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:36:36" (1/3) ... [2023-11-23 21:36:37,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728f11fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:36:37, skipping insertion in model container [2023-11-23 21:36:37,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:36" (2/3) ... [2023-11-23 21:36:37,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728f11fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:36:37, skipping insertion in model container [2023-11-23 21:36:37,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:37" (3/3) ... [2023-11-23 21:36:37,386 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2023-11-23 21:36:37,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:36:37,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:36:37,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:36:37,462 INFO L357 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, mHoare=true, 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;@f34b654, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:36:37,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:36:37,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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) [2023-11-23 21:36:37,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:36:37,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:36:37,476 INFO L195 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] [2023-11-23 21:36:37,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:36:37,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:37,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2136870077, now seen corresponding path program 1 times [2023-11-23 21:36:37,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:37,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815561573] [2023-11-23 21:36:37,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:37,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:36:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:36:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:36:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:36:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:36:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 21:36:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:36:37,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:36:37,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815561573] [2023-11-23 21:36:37,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815561573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:36:37,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:36:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:36:37,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762440916] [2023-11-23 21:36:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:36:37,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:36:37,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:36:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:36:37,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:36:37,873 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:36:37,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:36:37,913 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2023-11-23 21:36:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:36:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 1 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 39 [2023-11-23 21:36:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:36:37,926 INFO L225 Difference]: With dead ends: 43 [2023-11-23 21:36:37,927 INFO L226 Difference]: Without dead ends: 21 [2023-11-23 21:36:37,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:36:37,945 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:36:37,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:36:37,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-23 21:36:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-23 21:36:38,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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) [2023-11-23 21:36:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2023-11-23 21:36:38,013 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 39 [2023-11-23 21:36:38,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:36:38,014 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2023-11-23 21:36:38,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:36:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-23 21:36:38,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:36:38,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:36:38,017 INFO L195 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] [2023-11-23 21:36:38,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:36:38,018 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:36:38,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:38,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1882385917, now seen corresponding path program 1 times [2023-11-23 21:36:38,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:36:38,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081242296] [2023-11-23 21:36:38,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:38,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:36:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:36:38,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:36:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:36:38,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:36:38,315 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:36:38,317 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:36:38,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:36:38,325 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 21:36:38,330 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:36:38,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:36:38 BoogieIcfgContainer [2023-11-23 21:36:38,426 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:36:38,427 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:36:38,427 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:36:38,427 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:36:38,428 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:37" (3/4) ... [2023-11-23 21:36:38,431 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:36:38,432 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:36:38,433 INFO L158 Benchmark]: Toolchain (without parser) took 2044.59ms. Allocated memory is still 201.3MB. Free memory was 158.6MB in the beginning and 91.5MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-11-23 21:36:38,434 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 176.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:36:38,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.92ms. Allocated memory is still 201.3MB. Free memory was 158.2MB in the beginning and 147.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:36:38,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.56ms. Allocated memory is still 201.3MB. Free memory was 147.0MB in the beginning and 145.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:36:38,439 INFO L158 Benchmark]: Boogie Preprocessor took 42.81ms. Allocated memory is still 201.3MB. Free memory was 145.2MB in the beginning and 143.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:36:38,443 INFO L158 Benchmark]: RCFGBuilder took 535.20ms. Allocated memory is still 201.3MB. Free memory was 142.8MB in the beginning and 128.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:36:38,445 INFO L158 Benchmark]: TraceAbstraction took 1065.78ms. Allocated memory is still 201.3MB. Free memory was 128.1MB in the beginning and 91.8MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 21:36:38,446 INFO L158 Benchmark]: Witness Printer took 5.42ms. Allocated memory is still 201.3MB. Free memory was 91.8MB in the beginning and 91.5MB in the end (delta: 371.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:36:38,456 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 176.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.92ms. Allocated memory is still 201.3MB. Free memory was 158.2MB in the beginning and 147.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.56ms. Allocated memory is still 201.3MB. Free memory was 147.0MB in the beginning and 145.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.81ms. Allocated memory is still 201.3MB. Free memory was 145.2MB in the beginning and 143.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 535.20ms. Allocated memory is still 201.3MB. Free memory was 142.8MB in the beginning and 128.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1065.78ms. Allocated memory is still 201.3MB. Free memory was 128.1MB in the beginning and 91.8MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 5.42ms. Allocated memory is still 201.3MB. Free memory was 91.8MB in the beginning and 91.5MB in the end (delta: 371.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 4; [L23] signed char var_1_4 = -1; [L24] signed char var_1_5 = 100; [L25] signed long int var_1_6 = 1000; [L26] double var_1_7 = 4.5; [L27] unsigned char var_1_8 = 1; [L28] unsigned char var_1_9 = 0; [L29] signed long int var_1_10 = 256; [L30] signed char last_1_var_1_1 = 4; [L62] isInitial = 1 [L63] FCALL initially() [L64] COND TRUE 1 [L65] CALL updateLastVariables() [L55] last_1_var_1_1 = var_1_1 [L65] RET updateLastVariables() [L66] CALL updateVariables() [L44] var_1_4 = __VERIFIER_nondet_char() [L45] CALL assume_abort_if_not(var_1_4 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L45] RET assume_abort_if_not(var_1_4 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L47] var_1_5 = __VERIFIER_nondet_char() [L48] CALL assume_abort_if_not(var_1_5 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L48] RET assume_abort_if_not(var_1_5 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L50] var_1_9 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L51] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L52] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L52] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L66] RET updateVariables() [L67] CALL step() [L34] var_1_7 = 199.5 [L35] var_1_8 = var_1_9 [L36] var_1_10 = var_1_5 [L37] signed long int stepLocal_0 = var_1_10; VAL [isInitial=1, last_1_var_1_1=4, stepLocal_0=126, var_1_10=126, var_1_1=4, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L38] COND TRUE stepLocal_0 >= last_1_var_1_1 [L39] var_1_1 = (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) VAL [isInitial=1, last_1_var_1_1=4, stepLocal_0=126, var_1_10=126, var_1_1=125, var_1_4=125, var_1_5=126, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L41] var_1_6 = ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1))) [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (((((var_1_10 >= last_1_var_1_1) ? (var_1_1 == ((signed char) (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) : 1) && (var_1_6 == ((signed long int) ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1)))))) && (var_1_7 == ((double) 199.5))) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((signed long int) var_1_5)) ; [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=4, var_1_10=126, var_1_1=125, var_1_4=125, var_1_5=126, var_1_6=125, var_1_7=399/2, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=4, var_1_10=126, var_1_1=125, var_1_4=125, var_1_5=126, var_1_6=125, var_1_7=399/2, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 60/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:36:38,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ --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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:36:41,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:36:41,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 21:36:41,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:36:41,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:36:41,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:36:41,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:36:41,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:36:41,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:36:41,659 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:36:41,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:36:41,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:36:41,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:36:41,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:36:41,663 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:36:41,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:36:41,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:36:41,665 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:36:41,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:36:41,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:36:41,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:36:41,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:36:41,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:36:41,669 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:36:41,669 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:36:41,670 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:36:41,670 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:36:41,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:36:41,671 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:36:41,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:36:41,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:36:41,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:36:41,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:36:41,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:36:41,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:36:41,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:36:41,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:36:41,676 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 21:36:41,677 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:36:41,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:36:41,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:36:41,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:36:41,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:36:41,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:36:41,678 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 21:36:41,678 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2023-11-23 21:36:42,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:36:42,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:36:42,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:36:42,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:36:42,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:36:42,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-23 21:36:45,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:36:46,070 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:36:46,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2023-11-23 21:36:46,082 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data/0d932aafd/a39436d6dfd0440196a9cc1b114047cc/FLAG1c8d4ab53 [2023-11-23 21:36:46,100 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/data/0d932aafd/a39436d6dfd0440196a9cc1b114047cc [2023-11-23 21:36:46,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:36:46,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:36:46,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:36:46,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:36:46,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:36:46,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b08424f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46, skipping insertion in model container [2023-11-23 21:36:46,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:36:46,351 WARN L240 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_841990c0-ce73-4c7b-965e-3fb1855ca333/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-23 21:36:46,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:36:46,449 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:36:46,471 WARN L240 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_841990c0-ce73-4c7b-965e-3fb1855ca333/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2023-11-23 21:36:46,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:36:46,538 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:36:46,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46 WrapperNode [2023-11-23 21:36:46,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:36:46,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:36:46,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:36:46,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:36:46,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,617 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 66 [2023-11-23 21:36:46,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:36:46,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:36:46,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:36:46,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:36:46,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,644 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,667 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:36:46,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:36:46,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:36:46,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:36:46,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:36:46,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (1/1) ... [2023-11-23 21:36:46,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:36:46,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:36:46,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:36:46,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:36:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:36:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 21:36:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:36:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:36:46,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:36:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:36:46,999 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:36:47,002 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:36:47,329 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:36:47,405 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:36:47,405 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:36:47,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:47 BoogieIcfgContainer [2023-11-23 21:36:47,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:36:47,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:36:47,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:36:47,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:36:47,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:36:46" (1/3) ... [2023-11-23 21:36:47,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d1b0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:36:47, skipping insertion in model container [2023-11-23 21:36:47,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:36:46" (2/3) ... [2023-11-23 21:36:47,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d1b0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:36:47, skipping insertion in model container [2023-11-23 21:36:47,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:36:47" (3/3) ... [2023-11-23 21:36:47,428 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2023-11-23 21:36:47,452 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:36:47,452 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:36:47,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:36:47,525 INFO L357 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, mHoare=true, 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;@45a4ae71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:36:47,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:36:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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) [2023-11-23 21:36:47,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:36:47,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:36:47,543 INFO L195 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] [2023-11-23 21:36:47,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:36:47,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:47,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2136870077, now seen corresponding path program 1 times [2023-11-23 21:36:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:36:47,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048492764] [2023-11-23 21:36:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:47,571 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 [2023-11-23 21:36:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:36:47,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:36:47,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:36:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:47,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:36:47,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:36:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-23 21:36:47,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:36:47,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:36:47,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048492764] [2023-11-23 21:36:47,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048492764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:36:47,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:36:47,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:36:47,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235421248] [2023-11-23 21:36:47,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:36:47,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:36:47,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:36:47,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:36:47,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:36:47,844 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-23 21:36:47,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:36:47,909 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2023-11-23 21:36:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:36:47,914 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 39 [2023-11-23 21:36:47,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:36:47,927 INFO L225 Difference]: With dead ends: 43 [2023-11-23 21:36:47,927 INFO L226 Difference]: Without dead ends: 21 [2023-11-23 21:36:47,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:36:47,943 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:36:47,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:36:47,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-23 21:36:47,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-23 21:36:47,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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) [2023-11-23 21:36:47,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2023-11-23 21:36:47,990 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 39 [2023-11-23 21:36:47,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:36:47,991 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2023-11-23 21:36:47,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-23 21:36:47,992 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-23 21:36:47,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:36:47,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:36:47,995 INFO L195 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] [2023-11-23 21:36:48,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:36:48,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:36:48,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:36:48,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:36:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1882385917, now seen corresponding path program 1 times [2023-11-23 21:36:48,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:36:48,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462773536] [2023-11-23 21:36:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:36:48,202 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 [2023-11-23 21:36:48,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:36:48,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:36:48,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:36:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:36:48,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:36:48,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:37:23,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:23,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:37:23,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462773536] [2023-11-23 21:37:23,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462773536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:23,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:23,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:37:23,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199253970] [2023-11-23 21:37:23,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:23,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:37:23,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:37:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:37:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:37:23,124 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-23 21:37:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:23,301 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2023-11-23 21:37:23,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:37:23,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 39 [2023-11-23 21:37:23,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:23,304 INFO L225 Difference]: With dead ends: 35 [2023-11-23 21:37:23,305 INFO L226 Difference]: Without dead ends: 33 [2023-11-23 21:37:23,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:23,307 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:23,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 77 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:23,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-23 21:37:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2023-11-23 21:37:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:37:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2023-11-23 21:37:23,346 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 39 [2023-11-23 21:37:23,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:23,347 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-23 21:37:23,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-23 21:37:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-23 21:37:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:37:23,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:23,354 INFO L195 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] [2023-11-23 21:37:23,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:37:23,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:37:23,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:23,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:23,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1882326335, now seen corresponding path program 1 times [2023-11-23 21:37:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:37:23,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221524971] [2023-11-23 21:37:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:23,561 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 [2023-11-23 21:37:23,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:37:23,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:37:23,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841990c0-ce73-4c7b-965e-3fb1855ca333/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:37:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:23,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:37:23,664 INFO L285 TraceCheckSpWp]: Computing forward predicates...