./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme --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 8881431080bff9c322b0e4eff72d7ca44eac9c56f32aea07a4797c61348c368a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:23,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:23,353 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:57:23,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:23,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:23,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:23,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:23,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:23,428 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:23,433 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:23,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:57:23,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:57:23,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:23,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:23,437 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:23,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:23,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:57:23,438 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:57:23,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:57:23,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:57:23,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:23,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:57:23,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:57:23,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:57:23,442 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:57:23,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:23,443 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:23,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:23,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:23,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:57:23,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:57:23,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:23,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:23,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:57:23,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:57:23,448 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:57:23,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:57:23,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:57:23,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:57:23,449 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:57:23,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:57:23,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:57:23,449 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_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8881431080bff9c322b0e4eff72d7ca44eac9c56f32aea07a4797c61348c368a [2023-11-26 11:57:23,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:23,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:23,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:23,873 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:23,873 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:23,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i [2023-11-26 11:57:27,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:27,610 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:27,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i [2023-11-26 11:57:27,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data/cd30cd93a/d30fad64b5e749f3a0f526b1d6f7663d/FLAG1a9f5e06e [2023-11-26 11:57:27,639 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data/cd30cd93a/d30fad64b5e749f3a0f526b1d6f7663d [2023-11-26 11:57:27,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:27,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:27,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:27,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:27,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:27,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:27" (1/1) ... [2023-11-26 11:57:27,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225c4f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:27, skipping insertion in model container [2023-11-26 11:57:27,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:27" (1/1) ... [2023-11-26 11:57:27,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:27,899 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_a4ec3409-d54d-4395-9d80-d43418faef4d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i[915,928] [2023-11-26 11:57:27,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:27,958 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:27,975 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_a4ec3409-d54d-4395-9d80-d43418faef4d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i[915,928] [2023-11-26 11:57:27,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:28,021 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:28,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28 WrapperNode [2023-11-26 11:57:28,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:28,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:28,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:28,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:28,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,083 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-26 11:57:28,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:28,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:28,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:28,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:28,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,122 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:57:28,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:28,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:28,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:28,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:28,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (1/1) ... [2023-11-26 11:57:28,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:28,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:28,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:28,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:57:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:57:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:57:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:57:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:28,330 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:28,333 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:28,720 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:28,779 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:28,779 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:57:28,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:28 BoogieIcfgContainer [2023-11-26 11:57:28,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:28,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:57:28,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:57:28,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:57:28,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:57:27" (1/3) ... [2023-11-26 11:57:28,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306ee673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:28, skipping insertion in model container [2023-11-26 11:57:28,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:28" (2/3) ... [2023-11-26 11:57:28,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306ee673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:28, skipping insertion in model container [2023-11-26 11:57:28,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:28" (3/3) ... [2023-11-26 11:57:28,792 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-51.i [2023-11-26 11:57:28,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:57:28,816 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:57:28,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:57:28,878 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;@5939a3bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:57:28,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:57:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:57:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 11:57:28,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:28,896 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:28,897 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:28,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:28,904 INFO L85 PathProgramCache]: Analyzing trace with hash -204312437, now seen corresponding path program 1 times [2023-11-26 11:57:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:28,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505603403] [2023-11-26 11:57:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:29,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505603403] [2023-11-26 11:57:29,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:57:29,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764163679] [2023-11-26 11:57:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:29,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:29,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,210 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:57:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:29,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:57:29,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-26 11:57:29,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:57:29,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764163679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:29,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:29,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:29,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628482760] [2023-11-26 11:57:29,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:29,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:57:29,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:29,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:29,613 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:57:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:29,676 INFO L93 Difference]: Finished difference Result 73 states and 124 transitions. [2023-11-26 11:57:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:29,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 76 [2023-11-26 11:57:29,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:57:29,691 INFO L225 Difference]: With dead ends: 73 [2023-11-26 11:57:29,692 INFO L226 Difference]: Without dead ends: 36 [2023-11-26 11:57:29,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:29,702 INFO L413 NwaCegarLoop]: 49 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, 49 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 [2023-11-26 11:57:29,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:57:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-26 11:57:29,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-26 11:57:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:57:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2023-11-26 11:57:29,764 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 52 transitions. Word has length 76 [2023-11-26 11:57:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:57:29,765 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 52 transitions. [2023-11-26 11:57:29,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-26 11:57:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2023-11-26 11:57:29,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 11:57:29,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:29,771 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:29,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:29,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:29,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:29,981 INFO L85 PathProgramCache]: Analyzing trace with hash 379074511, now seen corresponding path program 1 times [2023-11-26 11:57:29,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:29,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886279384] [2023-11-26 11:57:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:29,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:30,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:57:30,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912721659] [2023-11-26 11:57:30,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:30,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:30,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:30,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:30,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:57:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:30,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:30,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:30,463 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:57:30,465 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:57:30,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:30,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:30,679 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:57:30,683 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:57:30,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:57:30 BoogieIcfgContainer [2023-11-26 11:57:30,802 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:57:30,802 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:57:30,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:57:30,803 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:57:30,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:28" (3/4) ... [2023-11-26 11:57:30,806 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:57:30,812 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:57:30,820 INFO L158 Benchmark]: Toolchain (without parser) took 3169.05ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 124.7MB in the end (delta: 7.5MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-11-26 11:57:30,823 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 95.6MB in the beginning and 95.6MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:57:30,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.95ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 120.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:57:30,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.33ms. Allocated memory is still 163.6MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:57:30,825 INFO L158 Benchmark]: Boogie Preprocessor took 59.66ms. Allocated memory is still 163.6MB. Free memory was 118.2MB in the beginning and 115.8MB in the end (delta: 2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:57:30,826 INFO L158 Benchmark]: RCFGBuilder took 634.75ms. Allocated memory is still 163.6MB. Free memory was 115.8MB in the beginning and 125.0MB in the end (delta: -9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:57:30,830 INFO L158 Benchmark]: TraceAbstraction took 2018.79ms. Allocated memory is still 163.6MB. Free memory was 124.2MB in the beginning and 125.4MB in the end (delta: -1.2MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2023-11-26 11:57:30,834 INFO L158 Benchmark]: Witness Printer took 10.06ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 124.7MB in the end (delta: 677.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:57:30,837 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 95.6MB in the beginning and 95.6MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.95ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 120.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.33ms. Allocated memory is still 163.6MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.66ms. Allocated memory is still 163.6MB. Free memory was 118.2MB in the beginning and 115.8MB in the end (delta: 2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 634.75ms. Allocated memory is still 163.6MB. Free memory was 115.8MB in the beginning and 125.0MB in the end (delta: -9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2018.79ms. Allocated memory is still 163.6MB. Free memory was 124.2MB in the beginning and 125.4MB in the end (delta: -1.2MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * Witness Printer took 10.06ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 124.7MB in the end (delta: 677.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 85. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 10.8; [L23] unsigned char var_1_2 = 0; [L24] signed short int var_1_5 = -16; [L25] double var_1_6 = 100.01; [L26] unsigned short int var_1_7 = 50; [L27] signed short int var_1_8 = 5; [L28] unsigned short int var_1_9 = 256; [L29] signed long int var_1_10 = -100; [L30] unsigned long int var_1_12 = 10000000; [L31] unsigned short int var_1_13 = 2; [L32] unsigned short int var_1_14 = 4; [L33] double var_1_15 = 4.5; [L89] isInitial = 1 [L90] FCALL initially() [L91] COND TRUE 1 [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L64] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L65] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L65] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-16, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L66] var_1_5 = __VERIFIER_nondet_short() [L67] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L67] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L68] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L68] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L69] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L69] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=10001/100, var_1_7=50, var_1_8=5, var_1_9=256] [L70] var_1_6 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=5, var_1_9=256] [L71] RET assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=5, var_1_9=256] [L72] var_1_8 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_8 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=256] [L73] RET assume_abort_if_not(var_1_8 >= -32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=256] [L74] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=256] [L74] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=256] [L75] var_1_9 = __VERIFIER_nondet_ushort() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767] [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767] [L77] CALL assume_abort_if_not(var_1_9 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 <= 32767) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=4, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L78] var_1_14 = __VERIFIER_nondet_ushort() [L79] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L79] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_14 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=65534, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=65534, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L80] RET assume_abort_if_not(var_1_14 <= 65534) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=65534, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=50, var_1_8=32767, var_1_9=0] [L93] RET updateVariables() [L94] CALL step() [L37] COND TRUE ! (var_1_5 >= ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))) [L38] var_1_7 = (var_1_9 + 1) VAL [isInitial=1, var_1_10=-100, var_1_12=10000000, var_1_13=2, var_1_14=65534, var_1_15=9/2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_7=1, var_1_8=32767, var_1_9=0] [L40] var_1_12 = var_1_9 [L41] var_1_13 = var_1_14 [L42] var_1_15 = var_1_6 [L43] unsigned long int stepLocal_0 = var_1_12; VAL [isInitial=1, stepLocal_0=0, var_1_10=-100, var_1_12=0, var_1_13=65534, var_1_14=65534, var_1_15=2, var_1_1=54/5, var_1_2=0, var_1_5=-1, var_1_6=2, var_1_7=1, var_1_8=32767, var_1_9=0] [L44] COND FALSE !(\read(var_1_2)) [L51] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=0, var_1_10=-100, var_1_12=0, var_1_13=65534, var_1_14=65534, var_1_15=2, var_1_1=2, var_1_2=0, var_1_5=-1, var_1_6=2, var_1_7=1, var_1_8=32767, var_1_9=0] [L53] unsigned char stepLocal_1 = (var_1_6 * var_1_15) >= var_1_1; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=-100, var_1_12=0, var_1_13=65534, var_1_14=65534, var_1_15=2, var_1_1=2, var_1_2=0, var_1_5=-1, var_1_6=2, var_1_7=1, var_1_8=32767, var_1_9=0] [L54] COND FALSE !(stepLocal_1 || var_1_2) [L59] var_1_10 = -1 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=-1, var_1_12=0, var_1_13=65534, var_1_14=65534, var_1_15=2, var_1_1=2, var_1_2=0, var_1_5=-1, var_1_6=2, var_1_7=1, var_1_8=32767, var_1_9=0] [L94] RET step() [L95] CALL, EXPR property() [L85-L86] return (((((var_1_2 ? ((var_1_12 >= (var_1_12 / var_1_5)) ? (var_1_1 == ((double) ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))))) : (var_1_1 == ((double) var_1_6))) : (var_1_1 == ((double) var_1_6))) && ((! (var_1_5 >= ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_7 == ((unsigned short int) (var_1_9 + 1))) : 1)) && ((((var_1_6 * var_1_15) >= var_1_1) || var_1_2) ? ((var_1_6 <= var_1_1) ? (var_1_10 == ((signed long int) var_1_9)) : 1) : (var_1_10 == ((signed long int) -1)))) && (var_1_12 == ((unsigned long int) var_1_9))) && (var_1_13 == ((unsigned short int) var_1_14))) && (var_1_15 == ((double) var_1_6)) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-1, var_1_12=0, var_1_13=65534, var_1_14=65534, var_1_15=2, var_1_1=2, var_1_2=0, var_1_5=-1, var_1_6=2, var_1_7=1, var_1_8=32767, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-1, var_1_12=0, var_1_13=65534, var_1_14=65534, var_1_15=2, var_1_1=2, var_1_2=0, var_1_5=-1, var_1_6=2, var_1_7=1, var_1_8=32767, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 49 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, 49 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 264/264 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 [2023-11-26 11:57:30,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme --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 8881431080bff9c322b0e4eff72d7ca44eac9c56f32aea07a4797c61348c368a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:34,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:34,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:57:34,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:34,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:34,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:34,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:34,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:34,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:34,252 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:34,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:57:34,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:57:34,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:34,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:34,256 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:34,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:34,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:57:34,258 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:57:34,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:57:34,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:34,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:57:34,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:57:34,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:57:34,260 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:57:34,260 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:57:34,261 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:57:34,261 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:57:34,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:34,262 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:34,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:34,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:34,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:57:34,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:57:34,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:34,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:34,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:57:34,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:57:34,266 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:57:34,266 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:57:34,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:57:34,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:57:34,267 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:57:34,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:57:34,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:57:34,268 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:57:34,268 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_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8881431080bff9c322b0e4eff72d7ca44eac9c56f32aea07a4797c61348c368a [2023-11-26 11:57:34,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:34,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:34,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:34,704 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:34,705 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:34,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i [2023-11-26 11:57:38,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:38,592 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:38,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i [2023-11-26 11:57:38,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data/8f2ccdcc1/bc23df763ddb4b538eee448a630f88e2/FLAGf11899638 [2023-11-26 11:57:38,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/data/8f2ccdcc1/bc23df763ddb4b538eee448a630f88e2 [2023-11-26 11:57:38,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:38,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:38,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:38,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:38,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:38,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:38,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f7ddaf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38, skipping insertion in model container [2023-11-26 11:57:38,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:38,678 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:38,835 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_a4ec3409-d54d-4395-9d80-d43418faef4d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i[915,928] [2023-11-26 11:57:38,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:38,894 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:38,910 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_a4ec3409-d54d-4395-9d80-d43418faef4d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-51.i[915,928] [2023-11-26 11:57:38,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:38,963 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:38,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38 WrapperNode [2023-11-26 11:57:38,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:38,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:38,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:38,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:38,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,072 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2023-11-26 11:57:39,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:39,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:39,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:39,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:39,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,098 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,114 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:57:39,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:39,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:39,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:39,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:39,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (1/1) ... [2023-11-26 11:57:39,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:57:39,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:39,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:39,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:57:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:57:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:57:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:57:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:39,378 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:39,381 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:44,107 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:44,187 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:44,187 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:57:44,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:44 BoogieIcfgContainer [2023-11-26 11:57:44,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:44,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:57:44,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:57:44,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:57:44,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:57:38" (1/3) ... [2023-11-26 11:57:44,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39637b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:44, skipping insertion in model container [2023-11-26 11:57:44,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:38" (2/3) ... [2023-11-26 11:57:44,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39637b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:57:44, skipping insertion in model container [2023-11-26 11:57:44,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:44" (3/3) ... [2023-11-26 11:57:44,201 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-51.i [2023-11-26 11:57:44,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:57:44,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:57:44,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:57:44,298 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;@1cf83326, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:57:44,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:57:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:57:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 11:57:44,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:44,323 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:44,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:44,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash -204312437, now seen corresponding path program 1 times [2023-11-26 11:57:44,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:57:44,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429994276] [2023-11-26 11:57:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:44,355 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 [2023-11-26 11:57:44,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:57:44,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:57:44,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:57:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:44,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:57:44,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-26 11:57:44,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:57:44,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:57:44,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429994276] [2023-11-26 11:57:44,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429994276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:44,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:44,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:44,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153761698] [2023-11-26 11:57:44,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:44,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:57:44,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:57:44,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:44,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:44,983 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:57:49,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 11:57:49,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:49,174 INFO L93 Difference]: Finished difference Result 73 states and 124 transitions. [2023-11-26 11:57:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:49,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 76 [2023-11-26 11:57:49,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:57:49,233 INFO L225 Difference]: With dead ends: 73 [2023-11-26 11:57:49,234 INFO L226 Difference]: Without dead ends: 36 [2023-11-26 11:57:49,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:49,243 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:57:49,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-26 11:57:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-26 11:57:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-26 11:57:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:57:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2023-11-26 11:57:49,298 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 52 transitions. Word has length 76 [2023-11-26 11:57:49,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:57:49,299 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 52 transitions. [2023-11-26 11:57:49,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-26 11:57:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2023-11-26 11:57:49,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 11:57:49,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:57:49,306 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:49,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 11:57:49,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:57:49,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:57:49,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:49,511 INFO L85 PathProgramCache]: Analyzing trace with hash 379074511, now seen corresponding path program 1 times [2023-11-26 11:57:49,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:57:49,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925926888] [2023-11-26 11:57:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:49,513 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 [2023-11-26 11:57:49,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:57:49,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:57:49,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4ec3409-d54d-4395-9d80-d43418faef4d/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:57:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:50,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:57:50,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:16,520 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)