./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:34:21,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:34:21,675 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:34:21,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:34:21,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:34:21,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:34:21,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:34:21,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:34:21,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:34:21,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:34:21,737 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:34:21,738 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:34:21,739 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:34:21,741 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:34:21,741 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:34:21,742 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:34:21,742 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:34:21,742 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:34:21,743 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:34:21,744 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:34:21,744 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:34:21,745 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:34:21,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:34:21,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:34:21,747 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:34:21,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:34:21,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:34:21,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:34:21,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:34:21,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:34:21,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:34:21,751 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:34:21,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:34:21,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:34:21,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:34:21,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:34:21,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:34:21,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:21,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:34:21,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:34:21,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:34:21,754 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:34:21,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:34:21,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:34:21,755 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:34:21,755 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:34:21,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:34:21,755 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc [2023-11-21 19:34:22,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:34:22,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:34:22,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:34:22,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:34:22,066 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:34:22,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i [2023-11-21 19:34:25,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:34:25,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:34:25,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i [2023-11-21 19:34:25,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data/2876542af/30bc37715ede4cbe8d903bbe55741843/FLAG308892441 [2023-11-21 19:34:25,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data/2876542af/30bc37715ede4cbe8d903bbe55741843 [2023-11-21 19:34:25,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:34:25,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:34:25,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:25,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:34:25,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:34:25,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a52900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25, skipping insertion in model container [2023-11-21 19:34:25,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:34:25,729 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_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2023-11-21 19:34:25,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:25,776 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:34:25,786 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_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2023-11-21 19:34:25,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:25,818 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:34:25,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25 WrapperNode [2023-11-21 19:34:25,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:25,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:25,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:34:25,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:34:25,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,868 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-11-21 19:34:25,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:25,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:34:25,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:34:25,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:34:25,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:34:25,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:34:25,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:34:25,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:34:25,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (1/1) ... [2023-11-21 19:34:25,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:25,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:25,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:34:25,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:34:26,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:34:26,008 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:34:26,008 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:34:26,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:34:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:34:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:34:26,087 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:34:26,090 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:34:26,303 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:34:26,399 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:34:26,400 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:34:26,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:26 BoogieIcfgContainer [2023-11-21 19:34:26,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:34:26,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:34:26,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:34:26,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:34:26,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:34:25" (1/3) ... [2023-11-21 19:34:26,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fc590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:26, skipping insertion in model container [2023-11-21 19:34:26,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:25" (2/3) ... [2023-11-21 19:34:26,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fc590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:26, skipping insertion in model container [2023-11-21 19:34:26,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:26" (3/3) ... [2023-11-21 19:34:26,426 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-37.i [2023-11-21 19:34:26,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:34:26,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:34:26,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:34:26,492 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=FINITE_AUTOMATA, 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;@17203192, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:34:26,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:34:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-21 19:34:26,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 19:34:26,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:26,506 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:26,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:34:26,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:26,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1891323331, now seen corresponding path program 1 times [2023-11-21 19:34:26,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:26,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319362981] [2023-11-21 19:34:26,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:26,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:34:26,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:34:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:34:26,876 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 19:34:26,878 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:34:26,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:34:26,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:34:26,889 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:34:26,894 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:34:26,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:34:26 BoogieIcfgContainer [2023-11-21 19:34:26,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:34:27,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:34:27,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:34:27,001 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:34:27,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:26" (3/4) ... [2023-11-21 19:34:27,007 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:34:27,009 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:34:27,010 INFO L158 Benchmark]: Toolchain (without parser) took 1496.38ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 120.0MB in the beginning and 161.3MB in the end (delta: -41.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:34:27,011 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:34:27,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.04ms. Allocated memory is still 159.4MB. Free memory was 120.0MB in the beginning and 108.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 19:34:27,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.51ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 106.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:34:27,014 INFO L158 Benchmark]: Boogie Preprocessor took 37.47ms. Allocated memory is still 159.4MB. Free memory was 106.5MB in the beginning and 104.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:34:27,019 INFO L158 Benchmark]: RCFGBuilder took 494.37ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 88.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 19:34:27,021 INFO L158 Benchmark]: TraceAbstraction took 592.99ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 87.6MB in the beginning and 161.7MB in the end (delta: -74.1MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-21 19:34:27,022 INFO L158 Benchmark]: Witness Printer took 8.67ms. Allocated memory is still 192.9MB. Free memory was 161.6MB in the beginning and 161.3MB in the end (delta: 306.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:34:27,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.04ms. Allocated memory is still 159.4MB. Free memory was 120.0MB in the beginning and 108.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.51ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 106.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.47ms. Allocated memory is still 159.4MB. Free memory was 106.5MB in the beginning and 104.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.37ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 88.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 592.99ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 87.6MB in the beginning and 161.7MB in the end (delta: -74.1MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 8.67ms. Allocated memory is still 192.9MB. Free memory was 161.6MB in the beginning and 161.3MB in the end (delta: 306.3kB). 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 34. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -25; [L23] double var_1_2 = 0.19999999999999996; [L24] double var_1_3 = 9.4; [L25] signed long int var_1_4 = 50; [L26] unsigned long int var_1_5 = 32; [L27] unsigned char var_1_6 = 1; [L28] unsigned char var_1_7 = 1; [L29] double var_1_8 = 9.75; [L30] double var_1_9 = 49.8; [L75] isInitial = 1 [L76] FCALL initially() [L77] COND TRUE 1 [L78] FCALL updateLastVariables() [L79] CALL updateVariables() [L49] var_1_2 = __VERIFIER_nondet_double() [L50] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=47/5, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_3=47/5, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L51] var_1_3 = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=50, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L53] var_1_4 = __VERIFIER_nondet_long() [L54] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L55] CALL assume_abort_if_not(var_1_4 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_4 <= 2147483646) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=1, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L56] var_1_6 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L58] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L59] var_1_7 = __VERIFIER_nondet_uchar() [L60] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L61] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=39/4, var_1_9=249/5] [L62] var_1_8 = __VERIFIER_nondet_double() [L63] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=249/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=249/5] [L64] CALL assume_abort_if_not(var_1_8 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=249/5] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_8 != 0.0F) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=249/5] [L65] var_1_9 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=2147483651] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=2147483651] [L79] RET updateVariables() [L80] CALL step() [L34] COND FALSE !(var_1_2 < var_1_3) [L37] unsigned char stepLocal_0 = var_1_6; [L38] COND FALSE !(stepLocal_0 && var_1_7) [L45] var_1_5 = var_1_4 [L80] RET step() [L81] CALL, EXPR property() [L71-L72] return ((var_1_2 < var_1_3) ? (var_1_1 == ((signed long int) (2 - var_1_4))) : 1) && ((var_1_6 && var_1_7) ? ((var_1_3 < ((var_1_2 / var_1_8) + var_1_9)) ? (var_1_5 == ((unsigned long int) var_1_4)) : (var_1_5 == ((unsigned long int) var_1_4))) : (var_1_5 == ((unsigned long int) var_1_4))) ; [L81] RET, EXPR property() [L81] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=2147483646, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=2147483651] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-25, var_1_3=2147483652, var_1_4=2147483646, var_1_5=2147483646, var_1_6=0, var_1_7=1, var_1_8=2147483653, var_1_9=2147483651] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2023-11-21 19:34:27,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:34:29,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:34:29,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 19:34:30,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:34:30,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:34:30,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:34:30,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:34:30,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:34:30,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:34:30,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:34:30,045 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:34:30,045 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:34:30,046 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:34:30,047 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:34:30,048 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:34:30,049 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:34:30,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:34:30,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:34:30,052 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:34:30,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:34:30,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:34:30,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:34:30,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:34:30,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:34:30,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:34:30,061 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:34:30,062 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:34:30,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:34:30,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:34:30,064 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:34:30,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:34:30,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:34:30,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:34:30,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:34:30,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:30,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:34:30,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:34:30,070 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:34:30,070 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:34:30,071 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:34:30,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:34:30,073 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:34:30,073 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:34:30,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:34:30,074 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74c5f41427fcd5f7006677941b6f3ff4d210550b7e3610a7968cf5a360f424cc [2023-11-21 19:34:30,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:34:30,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:34:30,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:34:30,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:34:30,556 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:34:30,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i [2023-11-21 19:34:33,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:34:34,093 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:34:34,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i [2023-11-21 19:34:34,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data/4b2b0f01b/f0d8c8caba294eadb87d179b67b6efe4/FLAG6828e0225 [2023-11-21 19:34:34,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/data/4b2b0f01b/f0d8c8caba294eadb87d179b67b6efe4 [2023-11-21 19:34:34,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:34:34,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:34:34,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:34,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:34:34,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:34:34,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c2001e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34, skipping insertion in model container [2023-11-21 19:34:34,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:34:34,394 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_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2023-11-21 19:34:34,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:34,481 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:34:34,500 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_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-37.i[915,928] [2023-11-21 19:34:34,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:34,559 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:34:34,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34 WrapperNode [2023-11-21 19:34:34,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:34,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:34,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:34:34,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:34:34,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,644 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2023-11-21 19:34:34,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:34,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:34:34,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:34:34,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:34:34,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:34:34,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:34:34,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:34:34,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:34:34,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (1/1) ... [2023-11-21 19:34:34,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:34,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:34,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:34:34,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:34:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:34:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:34:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:34:34,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:34:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:34:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:34:34,973 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:34:34,977 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:34:39,562 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:34:39,688 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:34:39,688 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:34:39,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:39 BoogieIcfgContainer [2023-11-21 19:34:39,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:34:39,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:34:39,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:34:39,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:34:39,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:34:34" (1/3) ... [2023-11-21 19:34:39,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2121d9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:39, skipping insertion in model container [2023-11-21 19:34:39,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:34" (2/3) ... [2023-11-21 19:34:39,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2121d9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:39, skipping insertion in model container [2023-11-21 19:34:39,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:39" (3/3) ... [2023-11-21 19:34:39,700 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-37.i [2023-11-21 19:34:39,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:34:39,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:34:39,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:34:39,775 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=FINITE_AUTOMATA, 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;@17c1c39f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:34:39,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:34:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-21 19:34:39,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 19:34:39,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:39,790 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:39,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:34:39,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:39,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1891323331, now seen corresponding path program 1 times [2023-11-21 19:34:39,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:34:39,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569729077] [2023-11-21 19:34:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:39,812 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 [2023-11-21 19:34:39,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:34:39,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:34:39,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:34:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:40,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 19:34:40,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:34:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-21 19:34:41,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:34:41,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:34:41,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569729077] [2023-11-21 19:34:41,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569729077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:41,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:34:41,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:34:41,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189571804] [2023-11-21 19:34:41,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:41,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:34:41,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:34:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:34:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:41,809 INFO L87 Difference]: Start difference. First operand has 27 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-21 19:34:44,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:44,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:44,259 INFO L93 Difference]: Finished difference Result 50 states and 73 transitions. [2023-11-21 19:34:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:34:44,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 44 [2023-11-21 19:34:44,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:44,269 INFO L225 Difference]: With dead ends: 50 [2023-11-21 19:34:44,269 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 19:34:44,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:44,278 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:44,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 57 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-11-21 19:34:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 19:34:44,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 19:34:44,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:34:44,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 19:34:44,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2023-11-21 19:34:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:44,308 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 19:34:44,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-21 19:34:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 19:34:44,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 19:34:44,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:34:44,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 19:34:44,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:34:44,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 19:34:44,551 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-11-21 19:34:44,551 INFO L902 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: true [2023-11-21 19:34:44,551 INFO L902 garLoopResultBuilder]: At program point L60-1(line 60) the Hoare annotation is: true [2023-11-21 19:34:44,552 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2023-11-21 19:34:44,552 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2023-11-21 19:34:44,552 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-21 19:34:44,552 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-21 19:34:44,553 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-21 19:34:44,553 INFO L902 garLoopResultBuilder]: At program point L77-2(lines 77 83) the Hoare annotation is: true [2023-11-21 19:34:44,553 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-21 19:34:44,553 INFO L902 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true [2023-11-21 19:34:44,554 INFO L902 garLoopResultBuilder]: At program point L57-1(line 57) the Hoare annotation is: true [2023-11-21 19:34:44,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-21 19:34:44,554 INFO L902 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: true [2023-11-21 19:34:44,554 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 48 67) no Hoare annotation was computed. [2023-11-21 19:34:44,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 19:34:44,555 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-21 19:34:44,555 INFO L902 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: true [2023-11-21 19:34:44,555 INFO L902 garLoopResultBuilder]: At program point L54-1(line 54) the Hoare annotation is: true [2023-11-21 19:34:44,556 INFO L902 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: true [2023-11-21 19:34:44,556 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-21 19:34:44,556 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 19:34:44,556 INFO L902 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: true [2023-11-21 19:34:44,557 INFO L902 garLoopResultBuilder]: At program point L63-1(line 63) the Hoare annotation is: true [2023-11-21 19:34:44,557 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-21 19:34:44,557 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-21 19:34:44,557 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-21 19:34:44,561 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:34:44,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:34:44,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:34:44 BoogieIcfgContainer [2023-11-21 19:34:44,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:34:44,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:34:44,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:34:44,575 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:34:44,576 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:39" (3/4) ... [2023-11-21 19:34:44,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:34:44,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 19:34:44,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-21 19:34:44,590 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-21 19:34:44,590 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 19:34:44,591 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:34:44,719 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:34:44,720 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 19:34:44,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:34:44,737 INFO L158 Benchmark]: Toolchain (without parser) took 10603.78ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 63.1MB in the end (delta: -746.3kB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-11-21 19:34:44,738 INFO L158 Benchmark]: CDTParser took 1.30ms. Allocated memory is still 56.6MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:34:44,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.48ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 50.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:34:44,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.43ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 48.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:34:44,739 INFO L158 Benchmark]: Boogie Preprocessor took 89.49ms. Allocated memory is still 86.0MB. Free memory was 48.3MB in the beginning and 46.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:34:44,740 INFO L158 Benchmark]: RCFGBuilder took 4951.72ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 53.1MB in the end (delta: -6.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-21 19:34:44,740 INFO L158 Benchmark]: TraceAbstraction took 4881.08ms. Allocated memory is still 86.0MB. Free memory was 52.7MB in the beginning and 37.6MB in the end (delta: 15.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-21 19:34:44,741 INFO L158 Benchmark]: Witness Printer took 161.76ms. Allocated memory is still 86.0MB. Free memory was 37.6MB in the beginning and 63.1MB in the end (delta: -25.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-11-21 19:34:44,745 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30ms. Allocated memory is still 56.6MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.48ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 50.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.43ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 48.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.49ms. Allocated memory is still 86.0MB. Free memory was 48.3MB in the beginning and 46.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 4951.72ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 53.1MB in the end (delta: -6.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4881.08ms. Allocated memory is still 86.0MB. Free memory was 52.7MB in the beginning and 37.6MB in the end (delta: 15.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 161.76ms. Allocated memory is still 86.0MB. Free memory was 37.6MB in the beginning and 63.1MB in the end (delta: -25.5MB). Peak memory consumption was 6.4MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 34 PreInvPairs, 46 NumberOfFragments, 13 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 13 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 110/110 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-21 19:34:44,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8039245a-d896-4e63-ad9e-e60ddbe9ef8a/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE