./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh --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 4f32f3e0457a6141f1106de27eaab44d0716424a3dba3667fc2cbc28838d3ee1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:35:57,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:35:57,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:35:57,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:35:57,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:35:57,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:35:57,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:35:57,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:35:57,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:35:57,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:35:57,789 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:35:57,790 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:35:57,790 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:35:57,791 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:35:57,791 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:35:57,791 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:35:57,792 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:35:57,792 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:35:57,793 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:35:57,794 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:35:57,794 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:35:57,795 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:35:57,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:35:57,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:35:57,796 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:35:57,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:35:57,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:35:57,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:35:57,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:35:57,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:35:57,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:35:57,799 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:35:57,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:35:57,800 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:35:57,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:35:57,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:35:57,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:35:57,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:35:57,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:35:57,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:35:57,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:35:57,802 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:35:57,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:35:57,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:35:57,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:35:57,803 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:35:57,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:35:57,803 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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f32f3e0457a6141f1106de27eaab44d0716424a3dba3667fc2cbc28838d3ee1 [2023-12-02 18:35:58,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:35:58,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:35:58,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:35:58,078 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:35:58,079 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:35:58,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i [2023-12-02 18:36:00,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:36:00,998 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:36:00,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i [2023-12-02 18:36:01,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data/b61d7db1b/e9ea76f341594e048b2e260e35c393fe/FLAG8f5aaa10a [2023-12-02 18:36:01,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data/b61d7db1b/e9ea76f341594e048b2e260e35c393fe [2023-12-02 18:36:01,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:36:01,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:36:01,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:01,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:36:01,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:36:01,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a668ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01, skipping insertion in model container [2023-12-02 18:36:01,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,067 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:36:01,217 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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i[916,929] [2023-12-02 18:36:01,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:01,291 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:36:01,303 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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i[916,929] [2023-12-02 18:36:01,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:01,361 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:36:01,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01 WrapperNode [2023-12-02 18:36:01,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:01,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:01,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:36:01,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:36:01,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,428 INFO L138 Inliner]: procedures = 29, calls = 150, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410 [2023-12-02 18:36:01,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:01,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:36:01,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:36:01,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:36:01,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:36:01,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:36:01,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:36:01,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:36:01,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (1/1) ... [2023-12-02 18:36:01,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:36:01,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:36:01,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:36:01,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:36:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:36:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:36:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 18:36:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 18:36:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:36:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 18:36:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:36:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:36:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:36:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:36:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:36:01,669 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:36:01,671 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:36:02,089 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:36:02,581 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:36:02,581 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:36:02,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:02 BoogieIcfgContainer [2023-12-02 18:36:02,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:36:02,586 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:36:02,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:36:02,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:36:02,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:36:01" (1/3) ... [2023-12-02 18:36:02,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3cd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:02, skipping insertion in model container [2023-12-02 18:36:02,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:01" (2/3) ... [2023-12-02 18:36:02,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3cd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:02, skipping insertion in model container [2023-12-02 18:36:02,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:02" (3/3) ... [2023-12-02 18:36:02,592 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-26.i [2023-12-02 18:36:02,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:36:02,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:36:02,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:36:02,667 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;@5976a7fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:36:02,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:36:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 18:36:02,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:02,681 INFO L195 NwaCegarLoop]: trace histogram [9, 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] [2023-12-02 18:36:02,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:02,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1672177418, now seen corresponding path program 1 times [2023-12-02 18:36:02,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:36:02,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584088512] [2023-12-02 18:36:02,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:02,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:36:02,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 18:36:02,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825485797] [2023-12-02 18:36:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:02,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:36:02,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:36:02,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:36:02,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 18:36:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:36:05,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:36:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:36:18,922 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:36:18,924 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:36:18,925 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:36:18,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:36:19,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 18:36:19,144 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:36:19,147 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:36:19,172 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 18:36:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 18:36:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 18:36:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 18:36:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-12-02 18:36:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-12-02 18:36:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-12-02 18:36:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 18:36:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 18:36:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 18:36:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 18:36:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-12-02 18:36:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-12-02 18:36:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 18:36:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 18:36:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 18:36:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 18:36:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-12-02 18:36:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 18:36:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 18:36:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 18:36:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-12-02 18:36:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 18:36:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 18:36:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 18:36:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 18:36:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 18:36:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-12-02 18:36:19,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 18:36:19,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 18:36:19,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 18:36:19,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 18:36:19,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-12-02 18:36:19,179 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-12-02 18:36:19,179 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 18:36:19,179 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 18:36:19,179 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-12-02 18:36:19,180 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-12-02 18:36:19,180 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-12-02 18:36:19,180 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-12-02 18:36:19,181 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 18:36:19,181 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 18:36:19,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:36:19 BoogieIcfgContainer [2023-12-02 18:36:19,197 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:36:19,197 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:36:19,197 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:36:19,198 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:36:19,198 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:02" (3/4) ... [2023-12-02 18:36:19,200 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:36:19,201 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:36:19,201 INFO L158 Benchmark]: Toolchain (without parser) took 18173.79ms. Allocated memory is still 169.9MB. Free memory was 130.5MB in the beginning and 101.8MB in the end (delta: 28.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-12-02 18:36:19,202 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory was 75.6MB in the beginning and 75.6MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:36:19,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.82ms. Allocated memory is still 169.9MB. Free memory was 130.5MB in the beginning and 114.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 18:36:19,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.13ms. Allocated memory is still 169.9MB. Free memory was 114.8MB in the beginning and 110.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:36:19,204 INFO L158 Benchmark]: Boogie Preprocessor took 61.35ms. Allocated memory is still 169.9MB. Free memory was 110.2MB in the beginning and 107.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:36:19,204 INFO L158 Benchmark]: RCFGBuilder took 1091.43ms. Allocated memory is still 169.9MB. Free memory was 107.0MB in the beginning and 95.2MB in the end (delta: 11.8MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2023-12-02 18:36:19,205 INFO L158 Benchmark]: TraceAbstraction took 16611.29ms. Allocated memory is still 169.9MB. Free memory was 95.2MB in the beginning and 101.8MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:36:19,205 INFO L158 Benchmark]: Witness Printer took 3.36ms. Allocated memory is still 169.9MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:36:19,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory was 75.6MB in the beginning and 75.6MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.82ms. Allocated memory is still 169.9MB. Free memory was 130.5MB in the beginning and 114.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.13ms. Allocated memory is still 169.9MB. Free memory was 114.8MB in the beginning and 110.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.35ms. Allocated memory is still 169.9MB. Free memory was 110.2MB in the beginning and 107.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1091.43ms. Allocated memory is still 169.9MB. Free memory was 107.0MB in the beginning and 95.2MB in the end (delta: 11.8MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16611.29ms. Allocated memory is still 169.9MB. Free memory was 95.2MB in the beginning and 101.8MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.36ms. Allocated memory is still 169.9MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 someBinaryFLOATComparisonOperation at line 56, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { -1, 1, 1.125, 199.5, 100000000000000.3, 64, 2, 50, -32, 8.75 }; [L47] unsigned char last_1_WrapperStruct00_var_1_15 = 64; [L90] isInitial = 1 [L91] FCALL initially() [L92] COND TRUE 1 [L93] CALL updateLastVariables() [L83] EXPR WrapperStruct00.var_1_15 [L83] last_1_WrapperStruct00_var_1_15 = WrapperStruct00.var_1_15 [L93] RET updateLastVariables() [L94] CALL updateVariables() [L67] WrapperStruct00.var_1_4 = __VERIFIER_nondet_short() [L68] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L68] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= -32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= -32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L69] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L69] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L70] WrapperStruct00.var_1_13 = __VERIFIER_nondet_float() [L71] EXPR WrapperStruct00.var_1_13 [L71] EXPR WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F [L71] EXPR WrapperStruct00.var_1_13 [L71] EXPR WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F [L71] EXPR (WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L71] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L72] WrapperStruct00.var_1_14 = __VERIFIER_nondet_float() [L73] EXPR WrapperStruct00.var_1_14 [L73] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L73] EXPR WrapperStruct00.var_1_14 [L73] EXPR WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L73] EXPR (WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L73] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L74] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L75] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L75] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L76] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L76] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L77] WrapperStruct00.var_1_19 = __VERIFIER_nondet_long() [L78] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L78] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= -2147483648) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= -2147483648) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L79] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L79] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L80] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L80] CALL assume_abort_if_not(WrapperStruct00.var_1_19 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(WrapperStruct00.var_1_19 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L94] RET updateVariables() [L95] CALL step() [L51] EXPR WrapperStruct00.var_1_13 [L51] EXPR WrapperStruct00.var_1_14 [L51] WrapperStruct00.var_1_12 = ((0.85f - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) [L52] EXPR WrapperStruct00.var_1_4 [L52] COND TRUE (- last_1_WrapperStruct00_var_1_15) >= (WrapperStruct00.var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4)))) [L53] EXPR WrapperStruct00.var_1_16 [L53] WrapperStruct00.var_1_15 = WrapperStruct00.var_1_16 [L55] EXPR WrapperStruct00.var_1_13 [L55] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_13 [L56] EXPR WrapperStruct00.var_1_20 [L56] EXPR WrapperStruct00.var_1_20 [L56] COND FALSE !(WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR ((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR ((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR ((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR ((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L59] EXPR (((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR ((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L59] EXPR WrapperStruct00.var_1_15 [L59] EXPR ((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L59] EXPR (((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) [L59] WrapperStruct00.var_1_1 = (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))))) [L61] EXPR WrapperStruct00.var_1_15 [L61] EXPR WrapperStruct00.var_1_15 [L61] EXPR WrapperStruct00.var_1_1 [L61] signed long int stepLocal_0 = WrapperStruct00.var_1_15 + (WrapperStruct00.var_1_15 + WrapperStruct00.var_1_1); [L62] EXPR WrapperStruct00.var_1_15 [L62] EXPR WrapperStruct00.var_1_1 [L62] EXPR WrapperStruct00.var_1_19 [L62] COND TRUE stepLocal_0 != (WrapperStruct00.var_1_15 * (WrapperStruct00.var_1_1 / WrapperStruct00.var_1_19)) [L63] EXPR WrapperStruct00.var_1_1 [L63] EXPR WrapperStruct00.var_1_15 [L63] EXPR ((10u) < ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15))) ? (10u) : ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15)) [L63] EXPR WrapperStruct00.var_1_15 [L63] WrapperStruct00.var_1_17 = (((((10u) < ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15))) ? (10u) : ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15)))) + WrapperStruct00.var_1_15) [L95] RET step() [L96] CALL, EXPR property() [L86] EXPR WrapperStruct00.var_1_20 [L86] EXPR WrapperStruct00.var_1_20 [L86] EXPR (WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_1 == ((signed short int) ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_1 == ((signed short int) (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))))))) [L86] EXPR WrapperStruct00.var_1_1 [L86] EXPR WrapperStruct00.var_1_15 [L86] EXPR WrapperStruct00.var_1_15 [L86] EXPR ((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L86] EXPR WrapperStruct00.var_1_15 [L86] EXPR ((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15) [L86] EXPR (WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_1 == ((signed short int) ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_1 == ((signed short int) (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))))))) [L86] EXPR ((WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_1 == ((signed short int) ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_1 == ((signed short int) (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))))))) && (WrapperStruct00.var_1_12 == ((float) ((0.85f - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14))) [L86] EXPR (((WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_1 == ((signed short int) ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_1 == ((signed short int) (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))))))) && (WrapperStruct00.var_1_12 == ((float) ((0.85f - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14)))) && (((- last_1_WrapperStruct00_var_1_15) >= (WrapperStruct00.var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (WrapperStruct00.var_1_15 == ((unsigned char) WrapperStruct00.var_1_16)) : 1) [L86] EXPR ((((WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_1 == ((signed short int) ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_1 == ((signed short int) (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))))))) && (WrapperStruct00.var_1_12 == ((float) ((0.85f - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14)))) && (((- last_1_WrapperStruct00_var_1_15) >= (WrapperStruct00.var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (WrapperStruct00.var_1_15 == ((unsigned char) WrapperStruct00.var_1_16)) : 1)) && (((WrapperStruct00.var_1_15 + (WrapperStruct00.var_1_15 + WrapperStruct00.var_1_1)) != (WrapperStruct00.var_1_15 * (WrapperStruct00.var_1_1 / WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_17 == ((unsigned long int) (((((10u) < ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15))) ? (10u) : ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15)))) + WrapperStruct00.var_1_15))) : 1) [L86] EXPR (((((WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_1 == ((signed short int) ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_1 == ((signed short int) (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))))))) && (WrapperStruct00.var_1_12 == ((float) ((0.85f - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14)))) && (((- last_1_WrapperStruct00_var_1_15) >= (WrapperStruct00.var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (WrapperStruct00.var_1_15 == ((unsigned char) WrapperStruct00.var_1_16)) : 1)) && (((WrapperStruct00.var_1_15 + (WrapperStruct00.var_1_15 + WrapperStruct00.var_1_1)) != (WrapperStruct00.var_1_15 * (WrapperStruct00.var_1_1 / WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_17 == ((unsigned long int) (((((10u) < ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15))) ? (10u) : ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15)))) + WrapperStruct00.var_1_15))) : 1)) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_13)) [L86-L87] return (((((WrapperStruct00.var_1_20 > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_1 == ((signed short int) ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : (WrapperStruct00.var_1_1 == ((signed short int) (((((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) < ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))) ? ((WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_15) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15))))) : ((WrapperStruct00.var_1_15 + ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_15)))))))))) && (WrapperStruct00.var_1_12 == ((float) ((0.85f - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14)))) && (((- last_1_WrapperStruct00_var_1_15) >= (WrapperStruct00.var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (WrapperStruct00.var_1_15 == ((unsigned char) WrapperStruct00.var_1_16)) : 1)) && (((WrapperStruct00.var_1_15 + (WrapperStruct00.var_1_15 + WrapperStruct00.var_1_1)) != (WrapperStruct00.var_1_15 * (WrapperStruct00.var_1_1 / WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_17 == ((unsigned long int) (((((10u) < ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15))) ? (10u) : ((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_15)))) + WrapperStruct00.var_1_15))) : 1)) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_13)) ; [L96] RET, EXPR property() [L96] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_15=64] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_15=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 1, TraceHistogramMax: 9, 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: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 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 [2023-12-02 18:36:19,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh --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 4f32f3e0457a6141f1106de27eaab44d0716424a3dba3667fc2cbc28838d3ee1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:36:21,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:36:21,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:36:21,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:36:21,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:36:21,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:36:21,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:36:21,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:36:21,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:36:21,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:36:21,285 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:36:21,285 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:36:21,286 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:36:21,286 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:36:21,287 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:36:21,287 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:36:21,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:36:21,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:36:21,289 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:36:21,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:36:21,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:36:21,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:36:21,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:36:21,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:36:21,292 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:36:21,293 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:36:21,293 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:36:21,293 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:36:21,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:36:21,294 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:36:21,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:36:21,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:36:21,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:36:21,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:36:21,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:36:21,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:36:21,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:36:21,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:36:21,297 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:36:21,297 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:36:21,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:36:21,298 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:36:21,298 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:36:21,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:36:21,298 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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f32f3e0457a6141f1106de27eaab44d0716424a3dba3667fc2cbc28838d3ee1 [2023-12-02 18:36:21,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:36:21,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:36:21,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:36:21,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:36:21,611 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:36:21,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i [2023-12-02 18:36:24,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:36:24,701 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:36:24,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i [2023-12-02 18:36:24,711 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data/41ccdaec3/13be1788e0fd46dfbb7233bffd48b54b/FLAG46942b7e2 [2023-12-02 18:36:24,726 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/data/41ccdaec3/13be1788e0fd46dfbb7233bffd48b54b [2023-12-02 18:36:24,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:36:24,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:36:24,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:24,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:36:24,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:36:24,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:24" (1/1) ... [2023-12-02 18:36:24,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1073e3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:24, skipping insertion in model container [2023-12-02 18:36:24,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:24" (1/1) ... [2023-12-02 18:36:24,769 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:36:24,915 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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i[916,929] [2023-12-02 18:36:24,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:24,984 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:36:25,007 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_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-26.i[916,929] [2023-12-02 18:36:25,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:25,077 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:36:25,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25 WrapperNode [2023-12-02 18:36:25,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:25,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:25,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:36:25,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:36:25,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,146 INFO L138 Inliner]: procedures = 36, calls = 150, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 408 [2023-12-02 18:36:25,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:25,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:36:25,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:36:25,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:36:25,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:36:25,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:36:25,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:36:25,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:36:25,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (1/1) ... [2023-12-02 18:36:25,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:36:25,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:36:25,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:36:25,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:36:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:36:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 18:36:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 18:36:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:36:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 18:36:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 18:36:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 18:36:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 18:36:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 18:36:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-12-02 18:36:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:36:25,300 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:36:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:36:25,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:36:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 18:36:25,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 18:36:25,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 18:36:25,411 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:36:25,413 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:36:26,769 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:36:26,806 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:36:26,807 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:36:26,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:26 BoogieIcfgContainer [2023-12-02 18:36:26,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:36:26,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:36:26,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:36:26,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:36:26,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:36:24" (1/3) ... [2023-12-02 18:36:26,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fe845f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:26, skipping insertion in model container [2023-12-02 18:36:26,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:25" (2/3) ... [2023-12-02 18:36:26,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fe845f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:26, skipping insertion in model container [2023-12-02 18:36:26,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:26" (3/3) ... [2023-12-02 18:36:26,816 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-26.i [2023-12-02 18:36:26,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:36:26,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:36:26,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:36:26,893 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;@3cc6d4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:36:26,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:36:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:26,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:36:26,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:26,910 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:26,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:26,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:26,916 INFO L85 PathProgramCache]: Analyzing trace with hash 674655894, now seen corresponding path program 1 times [2023-12-02 18:36:26,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:26,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257220201] [2023-12-02 18:36:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:26,931 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 [2023-12-02 18:36:26,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:26,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:26,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:27,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:36:27,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:27,359 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:36:27,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:27,360 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:27,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257220201] [2023-12-02 18:36:27,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257220201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:27,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:27,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:36:27,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127661719] [2023-12-02 18:36:27,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:27,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:36:27,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:27,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:36:27,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:36:27,394 INFO L87 Difference]: Start difference. First operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:36:27,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:27,748 INFO L93 Difference]: Finished difference Result 169 states and 261 transitions. [2023-12-02 18:36:27,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:36:27,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-02 18:36:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:27,757 INFO L225 Difference]: With dead ends: 169 [2023-12-02 18:36:27,757 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 18:36:27,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:36:27,763 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:27,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:36:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 18:36:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 18:36:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2023-12-02 18:36:27,802 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 84 [2023-12-02 18:36:27,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:27,803 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2023-12-02 18:36:27,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:36:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2023-12-02 18:36:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:36:27,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:27,808 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:27,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:28,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:28,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:28,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:28,011 INFO L85 PathProgramCache]: Analyzing trace with hash -154189688, now seen corresponding path program 1 times [2023-12-02 18:36:28,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:28,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83207831] [2023-12-02 18:36:28,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:28,012 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 [2023-12-02 18:36:28,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:28,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:28,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:28,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:28,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:28,468 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-02 18:36:28,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:28,469 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:28,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83207831] [2023-12-02 18:36:28,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83207831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:28,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:28,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:36:28,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886207649] [2023-12-02 18:36:28,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:28,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:36:28,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:36:28,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:36:28,473 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:36:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:28,967 INFO L93 Difference]: Finished difference Result 173 states and 252 transitions. [2023-12-02 18:36:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:36:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-02 18:36:28,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:28,969 INFO L225 Difference]: With dead ends: 173 [2023-12-02 18:36:28,969 INFO L226 Difference]: Without dead ends: 90 [2023-12-02 18:36:28,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:36:28,971 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:28,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 18:36:28,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-02 18:36:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2023-12-02 18:36:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 75 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:28,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-12-02 18:36:28,987 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 84 [2023-12-02 18:36:28,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:28,987 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-12-02 18:36:28,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:36:28,988 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-12-02 18:36:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:36:28,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:28,989 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:28,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 18:36:29,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:29,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:29,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:29,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2062647478, now seen corresponding path program 1 times [2023-12-02 18:36:29,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:29,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242208963] [2023-12-02 18:36:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:29,192 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 [2023-12-02 18:36:29,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:29,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:29,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 18:36:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:29,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:29,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:29,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-02 18:36:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:29,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:29,623 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242208963] [2023-12-02 18:36:29,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242208963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:29,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:29,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447038159] [2023-12-02 18:36:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:29,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:29,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:29,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:29,626 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:29,986 INFO L93 Difference]: Finished difference Result 171 states and 247 transitions. [2023-12-02 18:36:29,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-12-02 18:36:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:29,988 INFO L225 Difference]: With dead ends: 171 [2023-12-02 18:36:29,989 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:36:29,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:29,991 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:29,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 229 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:36:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:36:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:36:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 123 transitions. [2023-12-02 18:36:30,002 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 123 transitions. Word has length 84 [2023-12-02 18:36:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:30,003 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 123 transitions. [2023-12-02 18:36:30,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 123 transitions. [2023-12-02 18:36:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:36:30,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:30,005 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:30,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 18:36:30,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:30,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:30,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash 543376076, now seen corresponding path program 1 times [2023-12-02 18:36:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:30,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464867904] [2023-12-02 18:36:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:30,209 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 [2023-12-02 18:36:30,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:30,210 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:30,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 18:36:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:30,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:36:30,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:30,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:30,576 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:30,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464867904] [2023-12-02 18:36:30,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464867904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:30,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:30,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:36:30,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600125665] [2023-12-02 18:36:30,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:30,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:36:30,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:30,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:36:30,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:36:30,579 INFO L87 Difference]: Start difference. First operand 86 states and 123 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:31,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:31,043 INFO L93 Difference]: Finished difference Result 180 states and 257 transitions. [2023-12-02 18:36:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:36:31,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-12-02 18:36:31,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:31,046 INFO L225 Difference]: With dead ends: 180 [2023-12-02 18:36:31,046 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 18:36:31,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:36:31,048 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 10 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:31,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 444 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:36:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 18:36:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2023-12-02 18:36:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-12-02 18:36:31,059 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 84 [2023-12-02 18:36:31,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:31,059 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-12-02 18:36:31,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-12-02 18:36:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:36:31,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:31,062 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:31,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-02 18:36:31,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:31,268 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:31,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:31,269 INFO L85 PathProgramCache]: Analyzing trace with hash 543435658, now seen corresponding path program 1 times [2023-12-02 18:36:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:31,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921532542] [2023-12-02 18:36:31,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:31,270 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 [2023-12-02 18:36:31,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:31,271 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:31,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 18:36:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:31,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 18:36:31,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:31,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-02 18:36:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-02 18:36:31,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:31,718 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:31,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921532542] [2023-12-02 18:36:31,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921532542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:31,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:31,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:36:31,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453423198] [2023-12-02 18:36:31,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:31,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:36:31,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:31,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:36:31,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:36:31,721 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:36:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:33,023 INFO L93 Difference]: Finished difference Result 183 states and 259 transitions. [2023-12-02 18:36:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:36:33,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-02 18:36:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:33,025 INFO L225 Difference]: With dead ends: 183 [2023-12-02 18:36:33,025 INFO L226 Difference]: Without dead ends: 94 [2023-12-02 18:36:33,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-02 18:36:33,027 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 129 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:33,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 346 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 18:36:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-02 18:36:33,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2023-12-02 18:36:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 77 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2023-12-02 18:36:33,037 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 84 [2023-12-02 18:36:33,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:33,038 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2023-12-02 18:36:33,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:36:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2023-12-02 18:36:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 18:36:33,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:33,040 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:33,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-02 18:36:33,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:33,240 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:33,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash 622073858, now seen corresponding path program 1 times [2023-12-02 18:36:33,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421515907] [2023-12-02 18:36:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:33,242 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 [2023-12-02 18:36:33,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:33,243 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:33,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 18:36:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:33,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:36:33,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:33,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 40 [2023-12-02 18:36:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:36:33,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:36:33,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2023-12-02 18:36:34,001 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:36:34,001 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421515907] [2023-12-02 18:36:34,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421515907] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:36:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [360775703] [2023-12-02 18:36:34,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:34,002 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:36:34,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:36:34,012 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:36:34,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 18:36:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:34,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 18:36:34,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:35,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 51 [2023-12-02 18:36:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:36:35,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:36:35,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 34 [2023-12-02 18:36:35,497 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:36:35,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [360775703] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:36:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214963593] [2023-12-02 18:36:35,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:35,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:36:35,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:36:35,501 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:36:35,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 18:36:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:35,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 18:36:35,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 18:36:36,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:36:36,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 34 [2023-12-02 18:36:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 18:36:36,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214963593] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:36:36,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 18:36:36,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10, 9, 10, 9] total 21 [2023-12-02 18:36:36,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470269186] [2023-12-02 18:36:36,529 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 18:36:36,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 18:36:36,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:36,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 18:36:36,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-12-02 18:36:36,532 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 21 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 20 states have internal predecessors, (75), 5 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 18:36:39,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:39,699 INFO L93 Difference]: Finished difference Result 194 states and 268 transitions. [2023-12-02 18:36:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 18:36:39,700 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 20 states have internal predecessors, (75), 5 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 86 [2023-12-02 18:36:39,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:39,701 INFO L225 Difference]: With dead ends: 194 [2023-12-02 18:36:39,701 INFO L226 Difference]: Without dead ends: 90 [2023-12-02 18:36:39,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 490 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=280, Invalid=980, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 18:36:39,703 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 145 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:39,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 555 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-02 18:36:39,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-02 18:36:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2023-12-02 18:36:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2023-12-02 18:36:39,712 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 86 [2023-12-02 18:36:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:39,712 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2023-12-02 18:36:39,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 20 states have internal predecessors, (75), 5 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 18:36:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2023-12-02 18:36:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 18:36:39,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:39,714 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:39,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 18:36:39,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 18:36:40,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 18:36:40,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:40,315 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:40,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash 545173060, now seen corresponding path program 1 times [2023-12-02 18:36:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500019460] [2023-12-02 18:36:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:40,317 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 [2023-12-02 18:36:40,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:40,318 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:40,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (10)] Waiting until timeout for monitored process [2023-12-02 18:36:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:40,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:40,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:40,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 19 [2023-12-02 18:36:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:40,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:40,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:40,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500019460] [2023-12-02 18:36:40,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500019460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:40,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:40,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:40,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835303494] [2023-12-02 18:36:40,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:40,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:40,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:40,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:40,713 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:41,238 INFO L93 Difference]: Finished difference Result 173 states and 241 transitions. [2023-12-02 18:36:41,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:41,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2023-12-02 18:36:41,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:41,240 INFO L225 Difference]: With dead ends: 173 [2023-12-02 18:36:41,240 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:36:41,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:41,241 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:41,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 18:36:41,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:36:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:36:41,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2023-12-02 18:36:41,246 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 86 [2023-12-02 18:36:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:41,247 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2023-12-02 18:36:41,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:41,247 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-12-02 18:36:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:36:41,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:41,248 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:41,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (10)] Forceful destruction successful, exit code 0 [2023-12-02 18:36:41,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:41,449 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:41,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1992389923, now seen corresponding path program 1 times [2023-12-02 18:36:41,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:41,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447387994] [2023-12-02 18:36:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:41,450 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 [2023-12-02 18:36:41,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:41,451 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:41,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (11)] Waiting until timeout for monitored process [2023-12-02 18:36:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:41,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:41,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:41,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-02 18:36:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:41,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:41,774 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:41,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447387994] [2023-12-02 18:36:41,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447387994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:41,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:41,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:41,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460755307] [2023-12-02 18:36:41,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:41,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:41,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:41,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:41,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:41,776 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:42,097 INFO L93 Difference]: Finished difference Result 171 states and 237 transitions. [2023-12-02 18:36:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:42,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:36:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:42,099 INFO L225 Difference]: With dead ends: 171 [2023-12-02 18:36:42,099 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:36:42,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:42,100 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:42,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 204 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:36:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:36:42,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:36:42,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 75 states have internal predecessors, (100), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:42,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-12-02 18:36:42,107 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 91 [2023-12-02 18:36:42,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:42,107 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-12-02 18:36:42,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:42,108 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-12-02 18:36:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:36:42,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:42,109 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:42,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (11)] Ended with exit code 0 [2023-12-02 18:36:42,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:42,310 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:42,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:42,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2126403429, now seen corresponding path program 1 times [2023-12-02 18:36:42,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:42,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859337012] [2023-12-02 18:36:42,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:42,311 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 [2023-12-02 18:36:42,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:42,312 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:42,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (12)] Waiting until timeout for monitored process [2023-12-02 18:36:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:42,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:42,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:42,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-02 18:36:42,713 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:42,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:42,714 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:42,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859337012] [2023-12-02 18:36:42,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859337012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:42,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:42,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:42,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122789812] [2023-12-02 18:36:42,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:42,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:42,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:42,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:42,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:42,715 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:43,066 INFO L93 Difference]: Finished difference Result 171 states and 235 transitions. [2023-12-02 18:36:43,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:36:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:43,068 INFO L225 Difference]: With dead ends: 171 [2023-12-02 18:36:43,068 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 18:36:43,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:43,069 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 9 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:43,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 205 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:36:43,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 18:36:43,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-02 18:36:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.32) internal successors, (99), 75 states have internal predecessors, (99), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 117 transitions. [2023-12-02 18:36:43,074 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 117 transitions. Word has length 91 [2023-12-02 18:36:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:43,075 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 117 transitions. [2023-12-02 18:36:43,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 117 transitions. [2023-12-02 18:36:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:36:43,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:43,076 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:43,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (12)] Ended with exit code 0 [2023-12-02 18:36:43,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:43,277 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:43,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:43,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1907548711, now seen corresponding path program 1 times [2023-12-02 18:36:43,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:43,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675533597] [2023-12-02 18:36:43,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:43,278 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 [2023-12-02 18:36:43,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:43,279 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:43,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (13)] Waiting until timeout for monitored process [2023-12-02 18:36:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:43,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:43,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:43,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-02 18:36:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:43,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:43,699 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:43,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675533597] [2023-12-02 18:36:43,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675533597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:43,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:43,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:43,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364299806] [2023-12-02 18:36:43,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:43,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:43,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:43,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:43,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:43,701 INFO L87 Difference]: Start difference. First operand 86 states and 117 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:44,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:44,005 INFO L93 Difference]: Finished difference Result 172 states and 234 transitions. [2023-12-02 18:36:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:44,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:36:44,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:44,007 INFO L225 Difference]: With dead ends: 172 [2023-12-02 18:36:44,007 INFO L226 Difference]: Without dead ends: 87 [2023-12-02 18:36:44,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:44,008 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:44,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 210 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:36:44,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-02 18:36:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2023-12-02 18:36:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 75 states have internal predecessors, (98), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 116 transitions. [2023-12-02 18:36:44,013 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 116 transitions. Word has length 91 [2023-12-02 18:36:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:44,013 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 116 transitions. [2023-12-02 18:36:44,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:44,013 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 116 transitions. [2023-12-02 18:36:44,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:36:44,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:44,015 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:36:44,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (13)] Ended with exit code 0 [2023-12-02 18:36:44,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:44,220 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:44,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:44,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1569770135, now seen corresponding path program 1 times [2023-12-02 18:36:44,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:44,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403285462] [2023-12-02 18:36:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:44,221 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 [2023-12-02 18:36:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:44,222 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:44,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (14)] Waiting until timeout for monitored process [2023-12-02 18:36:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:44,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:44,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:44,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 19 [2023-12-02 18:36:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:44,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:44,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:44,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403285462] [2023-12-02 18:36:44,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403285462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:44,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:44,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:44,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562859688] [2023-12-02 18:36:44,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:44,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:44,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:44,628 INFO L87 Difference]: Start difference. First operand 86 states and 116 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:45,082 INFO L93 Difference]: Finished difference Result 169 states and 228 transitions. [2023-12-02 18:36:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:45,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-02 18:36:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:45,083 INFO L225 Difference]: With dead ends: 169 [2023-12-02 18:36:45,084 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 18:36:45,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:45,085 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 36 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:45,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:36:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 18:36:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 18:36:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 112 transitions. [2023-12-02 18:36:45,089 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 112 transitions. Word has length 91 [2023-12-02 18:36:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:45,089 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-12-02 18:36:45,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 112 transitions. [2023-12-02 18:36:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 18:36:45,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:45,091 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:36:45,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (14)] Ended with exit code 0 [2023-12-02 18:36:45,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:45,291 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:45,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1458884140, now seen corresponding path program 1 times [2023-12-02 18:36:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:45,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623181324] [2023-12-02 18:36:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:45,293 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 [2023-12-02 18:36:45,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:45,293 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:45,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (15)] Waiting until timeout for monitored process [2023-12-02 18:36:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:45,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:45,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:45,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-02 18:36:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:45,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:45,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:45,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623181324] [2023-12-02 18:36:45,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623181324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:45,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:45,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:45,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551531938] [2023-12-02 18:36:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:45,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:45,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:45,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:45,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:45,732 INFO L87 Difference]: Start difference. First operand 84 states and 112 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:46,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:46,067 INFO L93 Difference]: Finished difference Result 167 states and 223 transitions. [2023-12-02 18:36:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:46,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-12-02 18:36:46,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:46,069 INFO L225 Difference]: With dead ends: 167 [2023-12-02 18:36:46,069 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 18:36:46,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:46,070 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 34 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:46,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 169 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:36:46,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 18:36:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 18:36:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-12-02 18:36:46,074 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 96 [2023-12-02 18:36:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:46,074 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-12-02 18:36:46,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-12-02 18:36:46,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 18:36:46,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:46,075 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:36:46,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (15)] Ended with exit code 0 [2023-12-02 18:36:46,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:46,276 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:46,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:46,276 INFO L85 PathProgramCache]: Analyzing trace with hash -535260566, now seen corresponding path program 1 times [2023-12-02 18:36:46,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:46,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238606840] [2023-12-02 18:36:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:46,277 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 [2023-12-02 18:36:46,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:46,277 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:46,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (16)] Waiting until timeout for monitored process [2023-12-02 18:36:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:46,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:46,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:46,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-02 18:36:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 18:36:46,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:46,674 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:46,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238606840] [2023-12-02 18:36:46,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238606840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:46,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:46,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:36:46,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34865476] [2023-12-02 18:36:46,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:46,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:36:46,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:46,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:36:46,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:46,676 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:47,010 INFO L93 Difference]: Finished difference Result 187 states and 248 transitions. [2023-12-02 18:36:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:36:47,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-12-02 18:36:47,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:47,012 INFO L225 Difference]: With dead ends: 187 [2023-12-02 18:36:47,012 INFO L226 Difference]: Without dead ends: 104 [2023-12-02 18:36:47,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:36:47,013 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 24 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:47,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 199 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 18:36:47,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-02 18:36:47,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 84. [2023-12-02 18:36:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 73 states have internal predecessors, (92), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 18:36:47,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2023-12-02 18:36:47,019 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 96 [2023-12-02 18:36:47,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:47,019 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2023-12-02 18:36:47,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 18:36:47,020 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2023-12-02 18:36:47,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 18:36:47,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:47,020 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:36:47,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (16)] Ended with exit code 0 [2023-12-02 18:36:47,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 18:36:47,221 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:47,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:47,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1546377816, now seen corresponding path program 1 times [2023-12-02 18:36:47,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:47,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460165362] [2023-12-02 18:36:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:47,222 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 [2023-12-02 18:36:47,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:47,223 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 18:36:47,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01bee8f-76c3-4224-8ef6-2ffa799d0c47/bin/utaipan-verify-nQ1chXbOIh/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 (17)] Waiting until timeout for monitored process