./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:02:35,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:02:35,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:02:35,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:02:35,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:02:35,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:02:35,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:02:35,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:02:35,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:02:35,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:02:35,116 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:02:35,116 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:02:35,117 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:02:35,117 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:02:35,118 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:02:35,118 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:02:35,119 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:02:35,119 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:02:35,120 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:02:35,120 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:02:35,121 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:02:35,123 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:02:35,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:02:35,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:02:35,124 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:02:35,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:02:35,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:02:35,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:02:35,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:02:35,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:02:35,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:02:35,126 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:02:35,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:02:35,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:02:35,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:02:35,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:02:35,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:02:35,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:02:35,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:02:35,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:02:35,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:02:35,129 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:02:35,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:02:35,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:02:35,129 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:02:35,130 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:02:35,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:02:35,130 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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d [2023-12-02 16:02:35,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:02:35,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:02:35,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:02:35,379 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:02:35,379 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:02:35,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-12-02 16:02:38,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:02:38,333 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:02:38,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-12-02 16:02:38,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data/4e2773417/ff5702cab92a45b794e2ef46b94a05ab/FLAG2629cedc5 [2023-12-02 16:02:38,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data/4e2773417/ff5702cab92a45b794e2ef46b94a05ab [2023-12-02 16:02:38,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:02:38,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:02:38,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:02:38,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:02:38,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:02:38,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b697a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38, skipping insertion in model container [2023-12-02 16:02:38,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,404 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:02:38,550 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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-12-02 16:02:38,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:02:38,608 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:02:38,621 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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-12-02 16:02:38,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:02:38,666 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:02:38,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38 WrapperNode [2023-12-02 16:02:38,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:02:38,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:02:38,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:02:38,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:02:38,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,722 INFO L138 Inliner]: procedures = 29, calls = 144, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 416 [2023-12-02 16:02:38,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:02:38,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:02:38,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:02:38,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:02:38,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:02:38,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:02:38,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:02:38,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:02:38,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (1/1) ... [2023-12-02 16:02:38,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:02:38,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:02:38,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:02:38,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:02:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:02:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 16:02:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:02:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 16:02:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:02:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 16:02:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:02:38,839 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:02:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:02:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:02:38,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:02:38,942 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:02:38,944 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:02:39,329 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:02:39,902 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:02:39,902 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:02:39,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:02:39 BoogieIcfgContainer [2023-12-02 16:02:39,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:02:39,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:02:39,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:02:39,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:02:39,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:02:38" (1/3) ... [2023-12-02 16:02:39,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6040f3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:02:39, skipping insertion in model container [2023-12-02 16:02:39,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:38" (2/3) ... [2023-12-02 16:02:39,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6040f3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:02:39, skipping insertion in model container [2023-12-02 16:02:39,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:02:39" (3/3) ... [2023-12-02 16:02:39,911 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-47.i [2023-12-02 16:02:39,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:02:39,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:02:39,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:02:39,972 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;@1143b77b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:02:39,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:02:39,975 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 16:02:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 16:02:39,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:39,983 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 16:02:39,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:39,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:39,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1986173239, now seen corresponding path program 1 times [2023-12-02 16:02:40,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:02:40,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324663144] [2023-12-02 16:02:40,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:40,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:02:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:02:41,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:02:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:02:42,153 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:02:42,154 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:02:42,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:02:42,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:02:42,162 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:02:42,167 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:02:42,214 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 16:02:42,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 16:02:42,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 16:02:42,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-12-02 16:02:42,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-12-02 16:02:42,216 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 16:02:42,216 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-12-02 16:02:42,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-12-02 16:02:42,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 16:02:42,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-12-02 16:02:42,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 16:02:42,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-12-02 16:02:42,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 16:02:42,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 16:02:42,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 16:02:42,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 16:02:42,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 16:02:42,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 16:02:42,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 16:02:42,225 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 16:02:42,226 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 16:02:42,227 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 16:02:42,228 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-12-02 16:02:42,229 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-12-02 16:02:42,230 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 16:02:42,231 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 16:02:42,231 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 16:02:42,232 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 16:02:42,233 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 16:02:42,234 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 16:02:42,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:02:42 BoogieIcfgContainer [2023-12-02 16:02:42,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:02:42,251 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:02:42,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:02:42,252 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:02:42,252 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:02:39" (3/4) ... [2023-12-02 16:02:42,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:02:42,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:02:42,256 INFO L158 Benchmark]: Toolchain (without parser) took 3894.23ms. Allocated memory was 157.3MB in the beginning and 264.2MB in the end (delta: 107.0MB). Free memory was 113.6MB in the beginning and 103.6MB in the end (delta: 9.9MB). Peak memory consumption was 118.1MB. Max. memory is 16.1GB. [2023-12-02 16:02:42,257 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:02:42,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.04ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 100.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 16:02:42,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.39ms. Allocated memory is still 157.3MB. Free memory was 100.1MB in the beginning and 96.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:02:42,259 INFO L158 Benchmark]: Boogie Preprocessor took 44.18ms. Allocated memory is still 157.3MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:02:42,259 INFO L158 Benchmark]: RCFGBuilder took 1135.53ms. Allocated memory was 157.3MB in the beginning and 220.2MB in the end (delta: 62.9MB). Free memory was 94.7MB in the beginning and 106.0MB in the end (delta: -11.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2023-12-02 16:02:42,260 INFO L158 Benchmark]: TraceAbstraction took 2345.23ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 105.0MB in the beginning and 104.7MB in the end (delta: 300.0kB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2023-12-02 16:02:42,260 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 264.2MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:02:42,264 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.04ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 100.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.39ms. Allocated memory is still 157.3MB. Free memory was 100.1MB in the beginning and 96.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.18ms. Allocated memory is still 157.3MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1135.53ms. Allocated memory was 157.3MB in the beginning and 220.2MB in the end (delta: 62.9MB). Free memory was 94.7MB in the beginning and 106.0MB in the end (delta: -11.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2345.23ms. Allocated memory was 220.2MB in the beginning and 264.2MB in the end (delta: 44.0MB). Free memory was 105.0MB in the beginning and 104.7MB in the end (delta: 300.0kB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 264.2MB. Free memory is still 103.6MB. 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~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 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 someBinaryDOUBLEComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 62. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L23] double* var_1_1_Pointer = &(var_1_1); [L24] double var_1_8 = 3.5; [L25] double* var_1_8_Pointer = &(var_1_8); [L26] signed char var_1_9 = 16; [L27] signed char* var_1_9_Pointer = &(var_1_9); [L28] signed char var_1_10 = 16; [L29] signed char* var_1_10_Pointer = &(var_1_10); [L30] signed char var_1_11 = 4; [L31] signed char* var_1_11_Pointer = &(var_1_11); [L32] signed long int var_1_12 = 8; [L33] signed long int* var_1_12_Pointer = &(var_1_12); [L34] unsigned char var_1_13 = 1; [L35] unsigned char* var_1_13_Pointer = &(var_1_13); [L36] unsigned char var_1_14 = 1; [L37] unsigned char* var_1_14_Pointer = &(var_1_14); [L38] double var_1_15 = 3.8; [L39] double* var_1_15_Pointer = &(var_1_15); [L40] signed long int last_1_var_1_12 = 8; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L87] EXPR \read(var_1_12) [L87] last_1_var_1_12 = var_1_12 [L97] RET updateLastVariables() [L98] CALL updateVariables() [L71] var_1_8 = __VERIFIER_nondet_double() [L72] EXPR \read(var_1_8) [L72] EXPR var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F [L72] EXPR \read(var_1_8) [L72] EXPR var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F [L72] EXPR (var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L72] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L74] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L75] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L75] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L76] var_1_11 = __VERIFIER_nondet_char() [L77] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L77] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L78] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L78] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L81] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L81] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] EXPR \read(var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L84] EXPR \read(var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L84] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L98] RET updateVariables() [L99] CALL step() [L44] COND FALSE !(-4 > last_1_var_1_12) [L49] EXPR \read(*var_1_10_Pointer) [L49] (*(var_1_9_Pointer)) = (*(var_1_10_Pointer)) [L51] EXPR \read(*var_1_13_Pointer) [L51] unsigned char stepLocal_0 = ! (*(var_1_13_Pointer)); [L52] stepLocal_0 || (*(var_1_14_Pointer)) [L52] COND TRUE stepLocal_0 || (*(var_1_14_Pointer)) [L53] EXPR \read(*var_1_14_Pointer) [L53] COND FALSE !(! (*(var_1_14_Pointer))) [L56] EXPR \read(*var_1_9_Pointer) [L56] (*(var_1_12_Pointer)) = (*(var_1_9_Pointer)) [L59] EXPR \read(*var_1_8_Pointer) [L59] (*(var_1_15_Pointer)) = (*(var_1_8_Pointer)) [L60] EXPR \read(*var_1_15_Pointer) [L60] EXPR \read(*var_1_15_Pointer) [L60] COND TRUE (*(var_1_15_Pointer)) <= (*(var_1_15_Pointer)) [L61] EXPR \read(*var_1_12_Pointer) [L61] EXPR \read(*var_1_12_Pointer) [L61] EXPR \read(*var_1_12_Pointer) [L61] EXPR \read(*var_1_9_Pointer) [L61] COND TRUE ((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer))) [L62] EXPR \read(*var_1_8_Pointer) [L62] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L62] EXPR \read(*var_1_8_Pointer) [L62] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L62] (*(var_1_1_Pointer)) = (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR \read(*var_1_15_Pointer) [L90] EXPR \read(*var_1_15_Pointer) [L90] EXPR ((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_9_Pointer) [L90] EXPR (((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1 [L90] EXPR \read(*var_1_1_Pointer) [L90] EXPR \read(*var_1_8_Pointer) [L90] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L90] EXPR \read(*var_1_8_Pointer) [L90] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L90] EXPR (((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1 [L90] EXPR ((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1) [L90] EXPR (((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer))))) [L90] EXPR ((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1) [L90] EXPR (((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1)) && ((*(var_1_15_Pointer)) == ((double) (*(var_1_8_Pointer)))) [L90-L91] return (((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1)) && ((*(var_1_15_Pointer)) == ((double) (*(var_1_8_Pointer)))) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, 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: 0.0s SsaConstructionTime, 1.0s 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 16:02:42,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:02:44,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:02:44,358 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:02:44,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:02:44,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:02:44,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:02:44,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:02:44,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:02:44,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:02:44,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:02:44,396 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:02:44,397 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:02:44,397 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:02:44,398 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:02:44,398 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:02:44,399 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:02:44,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:02:44,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:02:44,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:02:44,401 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:02:44,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:02:44,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:02:44,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:02:44,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:02:44,404 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:02:44,404 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:02:44,405 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:02:44,405 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:02:44,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:02:44,406 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:02:44,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:02:44,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:02:44,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:02:44,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:02:44,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:02:44,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:02:44,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:02:44,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:02:44,408 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:02:44,409 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:02:44,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:02:44,409 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:02:44,409 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:02:44,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:02:44,410 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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d [2023-12-02 16:02:44,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:02:44,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:02:44,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:02:44,712 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:02:44,712 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:02:44,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-12-02 16:02:47,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:02:47,709 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:02:47,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-12-02 16:02:47,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data/98421ff79/5740fca85962423fa9ff7d089a2d11ad/FLAGbd8826281 [2023-12-02 16:02:47,731 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/data/98421ff79/5740fca85962423fa9ff7d089a2d11ad [2023-12-02 16:02:47,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:02:47,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:02:47,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:02:47,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:02:47,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:02:47,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:02:47" (1/1) ... [2023-12-02 16:02:47,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a207536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:47, skipping insertion in model container [2023-12-02 16:02:47,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:02:47" (1/1) ... [2023-12-02 16:02:47,766 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:02:47,918 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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-12-02 16:02:47,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:02:47,983 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:02:47,997 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_a1bd7041-9723-4a9a-902b-4736ed4c48f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-12-02 16:02:48,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:02:48,045 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:02:48,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48 WrapperNode [2023-12-02 16:02:48,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:02:48,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:02:48,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:02:48,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:02:48,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,103 INFO L138 Inliner]: procedures = 33, calls = 144, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2023-12-02 16:02:48,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:02:48,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:02:48,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:02:48,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:02:48,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:02:48,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:02:48,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:02:48,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:02:48,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (1/1) ... [2023-12-02 16:02:48,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:02:48,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:02:48,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:02:48,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:02:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:02:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 16:02:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 16:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 16:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 16:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-12-02 16:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 16:02:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:02:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:02:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:02:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:02:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 16:02:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 16:02:48,393 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:02:48,396 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:02:48,949 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:02:48,997 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:02:48,997 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:02:48,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:02:48 BoogieIcfgContainer [2023-12-02 16:02:48,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:02:49,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:02:49,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:02:49,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:02:49,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:02:47" (1/3) ... [2023-12-02 16:02:49,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ffaf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:02:49, skipping insertion in model container [2023-12-02 16:02:49,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:48" (2/3) ... [2023-12-02 16:02:49,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ffaf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:02:49, skipping insertion in model container [2023-12-02 16:02:49,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:02:48" (3/3) ... [2023-12-02 16:02:49,007 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-47.i [2023-12-02 16:02:49,024 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:02:49,024 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:02:49,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:02:49,080 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;@71c8e651, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:02:49,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:02:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 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 16:02:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 16:02:49,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:49,097 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] [2023-12-02 16:02:49,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:49,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash -384607571, now seen corresponding path program 1 times [2023-12-02 16:02:49,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:02:49,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220772697] [2023-12-02 16:02:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:49,117 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 16:02:49,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:02:49,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:49,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:49,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:02:49,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:02:49,524 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 16:02:49,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:02:49,525 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:02:49,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220772697] [2023-12-02 16:02:49,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220772697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:02:49,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:02:49,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:02:49,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241402264] [2023-12-02 16:02:49,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:02:49,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:02:49,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:02:49,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:02:49,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:02:49,566 INFO L87 Difference]: Start difference. First operand has 89 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 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 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:51,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:02:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:02:51,731 INFO L93 Difference]: Finished difference Result 201 states and 314 transitions. [2023-12-02 16:02:51,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:02:51,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 79 [2023-12-02 16:02:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:02:51,742 INFO L225 Difference]: With dead ends: 201 [2023-12-02 16:02:51,742 INFO L226 Difference]: Without dead ends: 113 [2023-12-02 16:02:51,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:02:51,748 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 90 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:02:51,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 523 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 16:02:51,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-02 16:02:51,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 90. [2023-12-02 16:02:51,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 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 16:02:51,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 132 transitions. [2023-12-02 16:02:51,794 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 132 transitions. Word has length 79 [2023-12-02 16:02:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:02:51,796 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 132 transitions. [2023-12-02 16:02:51,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2023-12-02 16:02:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 16:02:51,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:51,800 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] [2023-12-02 16:02:51,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:52,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:52,006 INFO L85 PathProgramCache]: Analyzing trace with hash 218336763, now seen corresponding path program 1 times [2023-12-02 16:02:52,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:02:52,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723207848] [2023-12-02 16:02:52,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:52,008 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 16:02:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:02:52,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:52,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:02:52,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:02:52,292 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 16:02:52,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:02:52,292 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:02:52,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723207848] [2023-12-02 16:02:52,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723207848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:02:52,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:02:52,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:02:52,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556981319] [2023-12-02 16:02:52,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:02:52,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:02:52,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:02:52,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:02:52,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:02:52,296 INFO L87 Difference]: Start difference. First operand 90 states and 132 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:52,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:02:52,413 INFO L93 Difference]: Finished difference Result 188 states and 275 transitions. [2023-12-02 16:02:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:02:52,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 79 [2023-12-02 16:02:52,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:02:52,416 INFO L225 Difference]: With dead ends: 188 [2023-12-02 16:02:52,416 INFO L226 Difference]: Without dead ends: 99 [2023-12-02 16:02:52,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 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 16:02:52,419 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 10 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:02:52,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 476 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:02:52,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-02 16:02:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2023-12-02 16:02:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 83 states have internal predecessors, (118), 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 16:02:52,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2023-12-02 16:02:52,431 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 79 [2023-12-02 16:02:52,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:02:52,432 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2023-12-02 16:02:52,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:52,432 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2023-12-02 16:02:52,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 16:02:52,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:52,434 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] [2023-12-02 16:02:52,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:52,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash 218396345, now seen corresponding path program 1 times [2023-12-02 16:02:52,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:02:52,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453800294] [2023-12-02 16:02:52,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:52,644 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 16:02:52,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:02:52,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:52,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:02:52,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:02:53,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:02:53,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2023-12-02 16:02:53,085 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 16:02:53,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:02:53,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:02:53,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453800294] [2023-12-02 16:02:53,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453800294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:02:53,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:02:53,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:02:53,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831495103] [2023-12-02 16:02:53,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:02:53,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:02:53,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:02:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:02:53,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:02:53,088 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:02:54,029 INFO L93 Difference]: Finished difference Result 292 states and 419 transitions. [2023-12-02 16:02:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:02:54,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 79 [2023-12-02 16:02:54,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:02:54,032 INFO L225 Difference]: With dead ends: 292 [2023-12-02 16:02:54,033 INFO L226 Difference]: Without dead ends: 199 [2023-12-02 16:02:54,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:02:54,035 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 135 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:02:54,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 369 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 16:02:54,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-02 16:02:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 97. [2023-12-02 16:02:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 86 states have internal predecessors, (122), 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 16:02:54,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2023-12-02 16:02:54,050 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 79 [2023-12-02 16:02:54,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:02:54,051 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2023-12-02 16:02:54,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:54,052 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2023-12-02 16:02:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 16:02:54,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:54,054 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] [2023-12-02 16:02:54,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:54,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:54,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:54,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:54,258 INFO L85 PathProgramCache]: Analyzing trace with hash 919460923, now seen corresponding path program 1 times [2023-12-02 16:02:54,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:02:54,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642595380] [2023-12-02 16:02:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:54,259 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 16:02:54,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:02:54,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:54,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:54,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:02:54,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:02:54,502 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 16:02:54,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:02:54,503 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:02:54,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642595380] [2023-12-02 16:02:54,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642595380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:02:54,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:02:54,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:02:54,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138753476] [2023-12-02 16:02:54,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:02:54,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:02:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:02:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:02:54,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:02:54,505 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:54,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:02:54,604 INFO L93 Difference]: Finished difference Result 221 states and 320 transitions. [2023-12-02 16:02:54,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:02:54,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 79 [2023-12-02 16:02:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:02:54,607 INFO L225 Difference]: With dead ends: 221 [2023-12-02 16:02:54,607 INFO L226 Difference]: Without dead ends: 125 [2023-12-02 16:02:54,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:02:54,609 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 81 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:02:54,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 534 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:02:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-02 16:02:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 98. [2023-12-02 16:02:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 87 states have internal predecessors, (123), 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 16:02:54,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-12-02 16:02:54,620 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 79 [2023-12-02 16:02:54,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:02:54,620 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-12-02 16:02:54,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:02:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-12-02 16:02:54,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 16:02:54,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:54,622 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] [2023-12-02 16:02:54,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:54,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:54,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:54,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:54,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1229513595, now seen corresponding path program 1 times [2023-12-02 16:02:54,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:02:54,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740947422] [2023-12-02 16:02:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:54,829 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 16:02:54,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:02:54,830 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:54,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:02:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:55,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 16:02:55,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:02:55,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:02:56,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:02:57,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:02:57,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:02:57,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:02:58,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:02:58,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:02:58,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 62 [2023-12-02 16:02:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:02:58,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:02:59,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:02:59,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740947422] [2023-12-02 16:02:59,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740947422] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:02:59,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [737310698] [2023-12-02 16:02:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:59,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:02:59,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:02:59,005 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:02:59,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 16:03:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:00,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:03:00,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:00,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 16:03:02,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:03,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:03,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:04,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:05,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:09,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 94 [2023-12-02 16:03:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:03:09,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:03:10,278 WARN L854 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_120 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_120) c_~var_1_15_Pointer~0.base))) (concat (select .cse2 (bvadd (_ bv4 32) c_~var_1_15_Pointer~0.offset)) (select .cse2 c_~var_1_15_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0))) (fp.leq |c_ULTIMATE.start_step_#t~mem34#1| |c_ULTIMATE.start_step_#t~mem35#1|)) is different from false [2023-12-02 16:03:10,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [737310698] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:03:10,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847109871] [2023-12-02 16:03:10,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:10,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:03:10,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:03:10,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:03:10,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 16:03:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:10,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 16:03:10,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:11,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 16:03:12,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:12,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:13,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:13,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:14,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-12-02 16:03:14,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 102 [2023-12-02 16:03:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:03:15,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:03:16,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847109871] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:03:16,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:03:16,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-12-02 16:03:16,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726729192] [2023-12-02 16:03:16,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:03:16,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-02 16:03:16,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:16,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-02 16:03:16,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=852, Unknown=25, NotChecked=62, Total=1122 [2023-12-02 16:03:16,264 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 25 states, 25 states have (on average 3.44) internal successors, (86), 24 states have internal predecessors, (86), 10 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2023-12-02 16:03:23,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:23,673 INFO L93 Difference]: Finished difference Result 289 states and 416 transitions. [2023-12-02 16:03:23,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:03:23,674 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.44) internal successors, (86), 24 states have internal predecessors, (86), 10 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 79 [2023-12-02 16:03:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:23,675 INFO L225 Difference]: With dead ends: 289 [2023-12-02 16:03:23,675 INFO L226 Difference]: Without dead ends: 192 [2023-12-02 16:03:23,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 265 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=278, Invalid=1107, Unknown=25, NotChecked=72, Total=1482 [2023-12-02 16:03:23,677 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 517 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 90 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:23,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 960 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1768 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-12-02 16:03:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-02 16:03:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 131. [2023-12-02 16:03:23,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 110 states have (on average 1.3818181818181818) internal successors, (152), 110 states have internal predecessors, (152), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:03:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 188 transitions. [2023-12-02 16:03:23,699 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 188 transitions. Word has length 79 [2023-12-02 16:03:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:23,700 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 188 transitions. [2023-12-02 16:03:23,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.44) internal successors, (86), 24 states have internal predecessors, (86), 10 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2023-12-02 16:03:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 188 transitions. [2023-12-02 16:03:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 16:03:23,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:23,702 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] [2023-12-02 16:03:23,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 16:03:23,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 16:03:24,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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)] Ended with exit code 0 [2023-12-02 16:03:24,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:24,303 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:24,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1170542606, now seen corresponding path program 1 times [2023-12-02 16:03:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898156452] [2023-12-02 16:03:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:24,305 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 16:03:24,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:24,305 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:24,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (9)] Waiting until timeout for monitored process [2023-12-02 16:03:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:24,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:03:24,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:24,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:03:24,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 46 [2023-12-02 16:03:24,752 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 16:03:24,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:03:24,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:24,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898156452] [2023-12-02 16:03:24,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898156452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:03:24,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:03:24,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:03:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643666610] [2023-12-02 16:03:24,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:24,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:03:24,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:24,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:03:24,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:03:24,755 INFO L87 Difference]: Start difference. First operand 131 states and 188 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:03:28,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:28,172 INFO L93 Difference]: Finished difference Result 304 states and 434 transitions. [2023-12-02 16:03:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:03:28,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 79 [2023-12-02 16:03:28,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:28,175 INFO L225 Difference]: With dead ends: 304 [2023-12-02 16:03:28,175 INFO L226 Difference]: Without dead ends: 174 [2023-12-02 16:03:28,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:03:28,176 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 97 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:28,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 357 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-02 16:03:28,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-02 16:03:28,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 133. [2023-12-02 16:03:28,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 112 states have (on average 1.375) internal successors, (154), 112 states have internal predecessors, (154), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:03:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 190 transitions. [2023-12-02 16:03:28,190 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 190 transitions. Word has length 79 [2023-12-02 16:03:28,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:28,190 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 190 transitions. [2023-12-02 16:03:28,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 16:03:28,190 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 190 transitions. [2023-12-02 16:03:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 16:03:28,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:28,192 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] [2023-12-02 16:03:28,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (9)] Ended with exit code 0 [2023-12-02 16:03:28,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:28,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:28,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:28,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1256579197, now seen corresponding path program 1 times [2023-12-02 16:03:28,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:28,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179178137] [2023-12-02 16:03:28,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:28,393 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 16:03:28,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:28,394 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:28,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:28,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:03:28,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:28,604 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 16:03:28,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:03:28,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:28,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179178137] [2023-12-02 16:03:28,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179178137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:03:28,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:03:28,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:03:28,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179019713] [2023-12-02 16:03:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:03:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:28,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:03:28,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:03:28,607 INFO L87 Difference]: Start difference. First operand 133 states and 190 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 16:03:28,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:28,697 INFO L93 Difference]: Finished difference Result 269 states and 385 transitions. [2023-12-02 16:03:28,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:03:28,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 79 [2023-12-02 16:03:28,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:28,699 INFO L225 Difference]: With dead ends: 269 [2023-12-02 16:03:28,699 INFO L226 Difference]: Without dead ends: 137 [2023-12-02 16:03:28,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 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 16:03:28,700 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 7 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:28,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 373 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:03:28,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-02 16:03:28,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 133. [2023-12-02 16:03:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:03:28,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 189 transitions. [2023-12-02 16:03:28,712 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 189 transitions. Word has length 79 [2023-12-02 16:03:28,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:28,712 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 189 transitions. [2023-12-02 16:03:28,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 16:03:28,713 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 189 transitions. [2023-12-02 16:03:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 16:03:28,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:28,714 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] [2023-12-02 16:03:28,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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)] Ended with exit code 0 [2023-12-02 16:03:28,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:28,914 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:28,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:28,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1393613572, now seen corresponding path program 1 times [2023-12-02 16:03:28,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:28,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118520777] [2023-12-02 16:03:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:28,915 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 16:03:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:28,916 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:28,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:29,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 16:03:29,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:29,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:03:30,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:03:30,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:03:31,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:03:31,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:03:32,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:03:32,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:03:32,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:03:32,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 62 [2023-12-02 16:03:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:03:32,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:03:32,712 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_211 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_213 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_55| (_ BitVec 64))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_55|) v_ArrVal_213))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_55|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_55|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_55|)) (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_211) c_~var_1_8_Pointer~0.base))) (concat (select .cse3 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse3 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))))) is different from false [2023-12-02 16:03:32,768 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_211 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_210 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_213 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_55| (_ BitVec 64))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_55|) v_ArrVal_213))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (let ((.cse2 (let ((.cse3 (select (store (store |c_#memory_int| c_~var_1_9_Pointer~0.base v_ArrVal_210) c_~var_1_12_Pointer~0.base v_ArrVal_211) c_~var_1_8_Pointer~0.base))) (concat (select .cse3 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse3 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_55|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_55|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_55|)))))) is different from false [2023-12-02 16:03:32,798 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:32,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118520777] [2023-12-02 16:03:32,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118520777] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:03:32,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1104984981] [2023-12-02 16:03:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:32,798 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:03:32,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:03:32,799 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:03:32,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 16:03:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:33,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 16:03:33,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:34,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:03:35,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:03:35,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:03:36,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:03:36,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2023-12-02 16:03:36,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:03:36,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2023-12-02 16:03:36,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2023-12-02 16:03:37,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 25 [2023-12-02 16:03:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:03:37,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:03:37,438 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_245 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_245))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:03:39,848 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_244 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_245 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_12_Pointer~0.offset (_ BitVec 32))) (not (let ((.cse0 (store (store (store |c_#memory_int| c_~var_1_12_Pointer~0.base (store (select |c_#memory_int| c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))) c_~var_1_15_Pointer~0.base v_ArrVal_244) c_~var_1_1_Pointer~0.base v_ArrVal_245))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:03:42,131 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_244 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_245 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_9_Pointer~0.offset (_ BitVec 32)) (~var_1_12_Pointer~0.offset (_ BitVec 32))) (not (let ((.cse0 (store (store (let ((.cse2 ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))))) (let ((.cse1 (store |c_#memory_int| c_~var_1_9_Pointer~0.base (store (select |c_#memory_int| c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset .cse2)))) (store .cse1 c_~var_1_12_Pointer~0.base (store (select .cse1 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) .cse2)))))) c_~var_1_15_Pointer~0.base v_ArrVal_244) c_~var_1_1_Pointer~0.base v_ArrVal_245))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:03:42,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1104984981] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:03:42,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360508994] [2023-12-02 16:03:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:42,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:03:42,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:03:42,200 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:03:42,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 16:03:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:42,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 16:03:42,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:46,441 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2023-12-02 16:03:46,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2023-12-02 16:03:47,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2023-12-02 16:03:47,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2023-12-02 16:03:48,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2023-12-02 16:03:49,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2023-12-02 16:03:50,019 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 16:03:50,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:03:50,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360508994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:03:50,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:03:50,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 15] total 33 [2023-12-02 16:03:50,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693818] [2023-12-02 16:03:50,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:50,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 16:03:50,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:50,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 16:03:50,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1310, Unknown=26, NotChecked=390, Total=1892 [2023-12-02 16:03:50,023 INFO L87 Difference]: Start difference. First operand 133 states and 189 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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 16:03:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:56,681 INFO L93 Difference]: Finished difference Result 421 states and 598 transitions. [2023-12-02 16:03:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:03:56,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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 80 [2023-12-02 16:03:56,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:56,684 INFO L225 Difference]: With dead ends: 421 [2023-12-02 16:03:56,684 INFO L226 Difference]: Without dead ends: 289 [2023-12-02 16:03:56,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=177, Invalid=1377, Unknown=26, NotChecked=400, Total=1980 [2023-12-02 16:03:56,686 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 328 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:56,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 356 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-02 16:03:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-12-02 16:03:56,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 146. [2023-12-02 16:03:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 125 states have (on average 1.4) internal successors, (175), 125 states have internal predecessors, (175), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:03:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 211 transitions. [2023-12-02 16:03:56,705 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 211 transitions. Word has length 80 [2023-12-02 16:03:56,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:56,706 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 211 transitions. [2023-12-02 16:03:56,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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 16:03:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 211 transitions. [2023-12-02 16:03:56,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 16:03:56,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:56,708 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] [2023-12-02 16:03:56,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:56,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 16:03:57,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 16:03:57,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:03:57,309 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:57,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:57,309 INFO L85 PathProgramCache]: Analyzing trace with hash -780234919, now seen corresponding path program 1 times [2023-12-02 16:03:57,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:57,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357095204] [2023-12-02 16:03:57,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:57,310 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 16:03:57,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:57,311 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:57,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:03:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:57,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 16:03:57,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:59,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:04:02,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:04:03,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:04:04,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:04:06,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-12-02 16:04:06,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:04:07,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 40 [2023-12-02 16:04:07,970 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 3 proven. 128 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 16:04:07,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:04:08,901 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_9_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_293 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_9_Pointer~0.base (store (select |c_#memory_int| c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))))) c_~var_1_15_Pointer~0.base v_ArrVal_293))) (= ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)))))) is different from false [2023-12-02 16:04:08,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:04:08,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357095204] [2023-12-02 16:04:08,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357095204] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:04:08,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1656350785] [2023-12-02 16:04:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:04:08,949 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:04:08,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:04:08,950 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:04:08,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 16:04:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:04:09,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:04:09,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:04:11,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:04:16,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:04:19,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:04:20,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:04:22,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-12-02 16:04:22,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:04:24,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 40 [2023-12-02 16:04:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 3 proven. 128 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 16:04:24,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:04:25,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1656350785] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:04:25,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979388351] [2023-12-02 16:04:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:04:25,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:04:25,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:04:25,022 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:04:25,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 16:04:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:04:25,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:04:25,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:04:27,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:04:34,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:04:36,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:04:38,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:04:39,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2023-12-02 16:04:41,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-12-02 16:04:42,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 35 [2023-12-02 16:04:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 4 proven. 128 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:04:42,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:04:43,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979388351] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:04:43,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:04:43,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20, 23] total 51 [2023-12-02 16:04:43,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169225557] [2023-12-02 16:04:43,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:04:43,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-02 16:04:43,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:04:43,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-02 16:04:43,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=2728, Unknown=8, NotChecked=106, Total=3080 [2023-12-02 16:04:43,388 INFO L87 Difference]: Start difference. First operand 146 states and 211 transitions. Second operand has 52 states, 45 states have (on average 3.088888888888889) internal successors, (139), 41 states have internal predecessors, (139), 18 states have call successors, (27), 15 states have call predecessors, (27), 17 states have return successors, (27), 17 states have call predecessors, (27), 18 states have call successors, (27) [2023-12-02 16:05:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:15,715 INFO L93 Difference]: Finished difference Result 563 states and 790 transitions. [2023-12-02 16:05:15,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-02 16:05:15,717 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 45 states have (on average 3.088888888888889) internal successors, (139), 41 states have internal predecessors, (139), 18 states have call successors, (27), 15 states have call predecessors, (27), 17 states have return successors, (27), 17 states have call predecessors, (27), 18 states have call successors, (27) Word has length 81 [2023-12-02 16:05:15,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:15,721 INFO L225 Difference]: With dead ends: 563 [2023-12-02 16:05:15,721 INFO L226 Difference]: Without dead ends: 418 [2023-12-02 16:05:15,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 256 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2319 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=1054, Invalid=6424, Unknown=8, NotChecked=170, Total=7656 [2023-12-02 16:05:15,726 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 3662 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 2574 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 2574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:15,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3662 Valid, 1717 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 2574 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time] [2023-12-02 16:05:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-12-02 16:05:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 206. [2023-12-02 16:05:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 179 states have (on average 1.3687150837988826) internal successors, (245), 179 states have internal predecessors, (245), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:05:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 281 transitions. [2023-12-02 16:05:15,759 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 281 transitions. Word has length 81 [2023-12-02 16:05:15,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:15,759 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 281 transitions. [2023-12-02 16:05:15,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 45 states have (on average 3.088888888888889) internal successors, (139), 41 states have internal predecessors, (139), 18 states have call successors, (27), 15 states have call predecessors, (27), 17 states have return successors, (27), 17 states have call predecessors, (27), 18 states have call successors, (27) [2023-12-02 16:05:15,760 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 281 transitions. [2023-12-02 16:05:15,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 16:05:15,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:15,761 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] [2023-12-02 16:05:15,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 16:05:15,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:16,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-02 16:05:16,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:05:16,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:16,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash 768364671, now seen corresponding path program 1 times [2023-12-02 16:05:16,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:16,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040997918] [2023-12-02 16:05:16,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:16,364 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 16:05:16,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:16,365 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:16,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 [2023-12-02 16:05:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:16,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 16:05:16,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:16,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:16,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 36 [2023-12-02 16:05:17,058 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 16:05:17,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:05:17,059 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040997918] [2023-12-02 16:05:17,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040997918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:05:17,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:05:17,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:05:17,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269354495] [2023-12-02 16:05:17,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:05:17,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:05:17,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:05:17,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:05:17,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:05:17,061 INFO L87 Difference]: Start difference. First operand 206 states and 281 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 16:05:18,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:18,952 INFO L93 Difference]: Finished difference Result 453 states and 618 transitions. [2023-12-02 16:05:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:05:18,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 81 [2023-12-02 16:05:18,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:18,955 INFO L225 Difference]: With dead ends: 453 [2023-12-02 16:05:18,956 INFO L226 Difference]: Without dead ends: 248 [2023-12-02 16:05:18,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:05:18,957 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 82 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:18,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 360 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 16:05:18,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-02 16:05:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 208. [2023-12-02 16:05:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 1.3646408839779005) internal successors, (247), 181 states have internal predecessors, (247), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:05:18,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 283 transitions. [2023-12-02 16:05:18,986 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 283 transitions. Word has length 81 [2023-12-02 16:05:18,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:18,986 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 283 transitions. [2023-12-02 16:05:18,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 16:05:18,986 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 283 transitions. [2023-12-02 16:05:18,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 16:05:18,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:18,987 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] [2023-12-02 16:05:18,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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)] Ended with exit code 0 [2023-12-02 16:05:19,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:19,188 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:19,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:19,188 INFO L85 PathProgramCache]: Analyzing trace with hash -294412073, now seen corresponding path program 1 times [2023-12-02 16:05:19,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:19,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336801869] [2023-12-02 16:05:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:19,189 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 16:05:19,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:19,190 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:19,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (18)] Waiting until timeout for monitored process [2023-12-02 16:05:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:19,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 16:05:19,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:21,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 39 [2023-12-02 16:05:22,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:22,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 46 [2023-12-02 16:05:22,805 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 16:05:22,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:05:22,806 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:22,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336801869] [2023-12-02 16:05:22,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336801869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:05:22,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:05:22,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 16:05:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526159335] [2023-12-02 16:05:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:05:22,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:05:22,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:05:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:05:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:05:22,808 INFO L87 Difference]: Start difference. First operand 208 states and 283 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 16:05:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:42,689 INFO L93 Difference]: Finished difference Result 467 states and 635 transitions. [2023-12-02 16:05:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:05:42,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 81 [2023-12-02 16:05:42,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:42,693 INFO L225 Difference]: With dead ends: 467 [2023-12-02 16:05:42,693 INFO L226 Difference]: Without dead ends: 260 [2023-12-02 16:05:42,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:05:42,694 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 231 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:42,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 315 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 19.6s Time] [2023-12-02 16:05:42,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-02 16:05:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 206. [2023-12-02 16:05:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 179 states have (on average 1.3519553072625698) internal successors, (242), 179 states have internal predecessors, (242), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:05:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2023-12-02 16:05:42,727 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 81 [2023-12-02 16:05:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:42,728 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2023-12-02 16:05:42,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 16:05:42,728 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2023-12-02 16:05:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 16:05:42,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:42,729 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] [2023-12-02 16:05:42,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (18)] Ended with exit code 0 [2023-12-02 16:05:42,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:42,930 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:42,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:42,930 INFO L85 PathProgramCache]: Analyzing trace with hash -229111485, now seen corresponding path program 1 times [2023-12-02 16:05:42,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:42,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337068252] [2023-12-02 16:05:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:42,931 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 16:05:42,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:42,931 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:42,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (19)] Waiting until timeout for monitored process [2023-12-02 16:05:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:43,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:05:43,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:44,012 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 16:05:44,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:05:44,013 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:44,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337068252] [2023-12-02 16:05:44,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337068252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:05:44,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:05:44,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:05:44,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368559718] [2023-12-02 16:05:44,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:05:44,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:05:44,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:05:44,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:05:44,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:05:44,015 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 16:05:44,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:44,909 INFO L93 Difference]: Finished difference Result 588 states and 786 transitions. [2023-12-02 16:05:44,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:05:44,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 81 [2023-12-02 16:05:44,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:44,913 INFO L225 Difference]: With dead ends: 588 [2023-12-02 16:05:44,913 INFO L226 Difference]: Without dead ends: 383 [2023-12-02 16:05:44,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:05:44,914 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 81 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:44,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 302 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 16:05:44,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-12-02 16:05:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 353. [2023-12-02 16:05:44,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 300 states have (on average 1.3133333333333332) internal successors, (394), 300 states have internal predecessors, (394), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 16:05:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 466 transitions. [2023-12-02 16:05:44,979 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 466 transitions. Word has length 81 [2023-12-02 16:05:44,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:44,979 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 466 transitions. [2023-12-02 16:05:44,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 16:05:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 466 transitions. [2023-12-02 16:05:44,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 16:05:44,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:44,981 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] [2023-12-02 16:05:44,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (19)] Forceful destruction successful, exit code 0 [2023-12-02 16:05:45,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:45,181 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:45,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:45,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1791030143, now seen corresponding path program 1 times [2023-12-02 16:05:45,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:45,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259687922] [2023-12-02 16:05:45,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:45,182 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 16:05:45,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:45,183 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:45,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (20)] Waiting until timeout for monitored process [2023-12-02 16:05:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:45,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:05:45,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 16:05:45,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:05:45,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:45,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259687922] [2023-12-02 16:05:45,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259687922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:05:45,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:05:45,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 16:05:45,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684614016] [2023-12-02 16:05:45,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:05:45,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:05:45,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:05:45,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:05:45,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:05:45,660 INFO L87 Difference]: Start difference. First operand 353 states and 466 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 16:05:46,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:46,541 INFO L93 Difference]: Finished difference Result 664 states and 882 transitions. [2023-12-02 16:05:46,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:05:46,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2023-12-02 16:05:46,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:46,544 INFO L225 Difference]: With dead ends: 664 [2023-12-02 16:05:46,544 INFO L226 Difference]: Without dead ends: 361 [2023-12-02 16:05:46,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:05:46,546 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 6 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:46,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 541 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 16:05:46,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-12-02 16:05:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 353. [2023-12-02 16:05:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 300 states have (on average 1.3066666666666666) internal successors, (392), 300 states have internal predecessors, (392), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 16:05:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 464 transitions. [2023-12-02 16:05:46,588 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 464 transitions. Word has length 81 [2023-12-02 16:05:46,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:46,588 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 464 transitions. [2023-12-02 16:05:46,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 16:05:46,588 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 464 transitions. [2023-12-02 16:05:46,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 16:05:46,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:46,589 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] [2023-12-02 16:05:46,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (20)] Ended with exit code 0 [2023-12-02 16:05:46,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:46,790 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:46,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:46,790 INFO L85 PathProgramCache]: Analyzing trace with hash -426600255, now seen corresponding path program 1 times [2023-12-02 16:05:46,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:46,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410814802] [2023-12-02 16:05:46,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:46,791 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 16:05:46,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:46,793 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:05:46,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (21)] Waiting until timeout for monitored process [2023-12-02 16:05:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:47,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 16:05:47,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:47,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:05:50,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 80 [2023-12-02 16:05:52,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 80 [2023-12-02 16:05:53,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 80 [2023-12-02 16:05:55,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 80 [2023-12-02 16:05:56,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 80 [2023-12-02 16:05:56,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:56,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 60 [2023-12-02 16:05:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:05:56,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:05:57,595 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_92| (_ BitVec 64)) (v_ArrVal_437 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_92|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_92|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| c_~var_1_9_Pointer~0.base v_ArrVal_437) c_~var_1_8_Pointer~0.base))) (concat (select .cse3 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse3 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_92|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_92|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_92|)))))) is different from false [2023-12-02 16:05:57,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:57,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410814802] [2023-12-02 16:05:57,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410814802] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:05:57,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [54409065] [2023-12-02 16:05:57,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:57,671 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:05:57,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:05:57,672 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:05:57,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 16:05:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:59,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 16:05:59,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:59,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2023-12-02 16:06:12,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 91 [2023-12-02 16:06:15,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 91 [2023-12-02 16:06:18,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 91 [2023-12-02 16:06:21,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 91 [2023-12-02 16:06:23,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 91 [2023-12-02 16:06:25,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 103 [2023-12-02 16:06:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:06:25,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:06:26,490 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_465 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_468 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_98| (_ BitVec 64))) (or (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_98|)) (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| c_~var_1_9_Pointer~0.base v_ArrVal_465) c_~var_1_8_Pointer~0.base))) (concat (select .cse1 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse1 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_98|) v_ArrVal_468))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2023-12-02 16:06:26,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [54409065] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:06:26,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903480489] [2023-12-02 16:06:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:06:26,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:06:26,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:06:26,573 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:06:26,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 16:06:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:06:26,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:06:26,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:06:27,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2023-12-02 16:06:38,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 77 [2023-12-02 16:06:42,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 77 [2023-12-02 16:06:48,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 77 [2023-12-02 16:06:53,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 77 [2023-12-02 16:06:59,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 77 [2023-12-02 16:07:03,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 99 [2023-12-02 16:07:05,978 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:07:05,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:07:08,077 WARN L854 $PredicateComparison]: unable to prove that (or (fp.leq |c_ULTIMATE.start_step_#t~mem34#1| |c_ULTIMATE.start_step_#t~mem35#1|) (forall ((v_ArrVal_498 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_498) c_~var_1_15_Pointer~0.base))) (concat (select .cse2 (bvadd (_ bv4 32) c_~var_1_15_Pointer~0.offset)) (select .cse2 c_~var_1_15_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)))) is different from false [2023-12-02 16:07:09,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903480489] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:07:09,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:07:09,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 12] total 41 [2023-12-02 16:07:09,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793224317] [2023-12-02 16:07:09,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:07:09,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-02 16:07:09,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:09,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-02 16:07:09,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2046, Unknown=23, NotChecked=288, Total=2652 [2023-12-02 16:07:09,349 INFO L87 Difference]: Start difference. First operand 353 states and 464 transitions. Second operand has 42 states, 40 states have (on average 3.125) internal successors, (125), 37 states have internal predecessors, (125), 15 states have call successors, (27), 15 states have call predecessors, (27), 15 states have return successors, (27), 15 states have call predecessors, (27), 15 states have call successors, (27) [2023-12-02 16:08:01,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:08:09,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:08:12,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:08:14,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:08:19,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:08:21,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:08:25,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:16,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:18,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:20,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:22,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:24,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:26,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:28,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:35,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:37,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:40,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:09:52,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:10:00,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:10:02,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:10:04,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:10:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:10:13,024 INFO L93 Difference]: Finished difference Result 1055 states and 1390 transitions. [2023-12-02 16:10:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-02 16:10:13,025 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 3.125) internal successors, (125), 37 states have internal predecessors, (125), 15 states have call successors, (27), 15 states have call predecessors, (27), 15 states have return successors, (27), 15 states have call predecessors, (27), 15 states have call successors, (27) Word has length 81 [2023-12-02 16:10:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:10:13,030 INFO L225 Difference]: With dead ends: 1055 [2023-12-02 16:10:13,030 INFO L226 Difference]: Without dead ends: 820 [2023-12-02 16:10:13,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2810 ImplicationChecksByTransitivity, 122.9s TimeCoverageRelationStatistics Valid=1398, Invalid=8096, Unknown=24, NotChecked=582, Total=10100 [2023-12-02 16:10:13,036 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 1325 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 3903 mSolverCounterSat, 359 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 4282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 3903 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:10:13,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 1971 Invalid, 4282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [359 Valid, 3903 Invalid, 20 Unknown, 0 Unchecked, 104.0s Time] [2023-12-02 16:10:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2023-12-02 16:10:13,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 262. [2023-12-02 16:10:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 235 states have (on average 1.327659574468085) internal successors, (312), 235 states have internal predecessors, (312), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:10:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 348 transitions. [2023-12-02 16:10:13,087 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 348 transitions. Word has length 81 [2023-12-02 16:10:13,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:10:13,088 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 348 transitions. [2023-12-02 16:10:13,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 3.125) internal successors, (125), 37 states have internal predecessors, (125), 15 states have call successors, (27), 15 states have call predecessors, (27), 15 states have return successors, (27), 15 states have call predecessors, (27), 15 states have call successors, (27) [2023-12-02 16:10:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 348 transitions. [2023-12-02 16:10:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 16:10:13,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:10:13,089 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] [2023-12-02 16:10:13,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 16:10:13,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (21)] Ended with exit code 0 [2023-12-02 16:10:13,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 16:10:13,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:10:13,694 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:10:13,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:10:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1409844529, now seen corresponding path program 1 times [2023-12-02 16:10:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:10:13,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567256194] [2023-12-02 16:10:13,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:10:13,694 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 16:10:13,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:10:13,695 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:10:13,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (24)] Waiting until timeout for monitored process [2023-12-02 16:10:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:10:13,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:10:13,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:10:14,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:10:14,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 44 [2023-12-02 16:10:14,204 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 16:10:14,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:10:14,204 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:10:14,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567256194] [2023-12-02 16:10:14,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567256194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:10:14,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:10:14,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:10:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919457128] [2023-12-02 16:10:14,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:10:14,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:10:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:10:14,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:10:14,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:10:14,206 INFO L87 Difference]: Start difference. First operand 262 states and 348 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 16:10:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:10:17,582 INFO L93 Difference]: Finished difference Result 477 states and 633 transitions. [2023-12-02 16:10:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:10:17,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 82 [2023-12-02 16:10:17,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:10:17,585 INFO L225 Difference]: With dead ends: 477 [2023-12-02 16:10:17,585 INFO L226 Difference]: Without dead ends: 302 [2023-12-02 16:10:17,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:10:17,586 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 84 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:10:17,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 407 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-02 16:10:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-02 16:10:17,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 254. [2023-12-02 16:10:17,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 227 states have (on average 1.303964757709251) internal successors, (296), 227 states have internal predecessors, (296), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:10:17,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 332 transitions. [2023-12-02 16:10:17,616 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 332 transitions. Word has length 82 [2023-12-02 16:10:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:10:17,616 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 332 transitions. [2023-12-02 16:10:17,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 16:10:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 332 transitions. [2023-12-02 16:10:17,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 16:10:17,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:10:17,617 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] [2023-12-02 16:10:17,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (24)] Ended with exit code 0 [2023-12-02 16:10:17,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:10:17,818 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:10:17,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:10:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1937375765, now seen corresponding path program 1 times [2023-12-02 16:10:17,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:10:17,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764086] [2023-12-02 16:10:17,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:10:17,819 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 16:10:17,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:10:17,820 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:10:17,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (25)] Waiting until timeout for monitored process [2023-12-02 16:10:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:10:18,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 16:10:18,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:10:21,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:21,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-12-02 16:10:21,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2023-12-02 16:10:22,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2023-12-02 16:10:22,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-12-02 16:10:22,501 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 16:10:22,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:10:22,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:10:22,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764086] [2023-12-02 16:10:22,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:10:22,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:10:22,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 16:10:22,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559083707] [2023-12-02 16:10:22,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:10:22,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:10:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:10:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:10:22,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:10:22,503 INFO L87 Difference]: Start difference. First operand 254 states and 332 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 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 16:10:26,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:10:29,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:10:29,064 INFO L93 Difference]: Finished difference Result 534 states and 704 transitions. [2023-12-02 16:10:29,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:10:29,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 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 82 [2023-12-02 16:10:29,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:10:29,067 INFO L225 Difference]: With dead ends: 534 [2023-12-02 16:10:29,067 INFO L226 Difference]: Without dead ends: 366 [2023-12-02 16:10:29,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:10:29,068 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 218 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:10:29,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 351 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2023-12-02 16:10:29,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-12-02 16:10:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 271. [2023-12-02 16:10:29,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 244 states have (on average 1.3032786885245902) internal successors, (318), 244 states have internal predecessors, (318), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:10:29,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 354 transitions. [2023-12-02 16:10:29,096 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 354 transitions. Word has length 82 [2023-12-02 16:10:29,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:10:29,096 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 354 transitions. [2023-12-02 16:10:29,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 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 16:10:29,097 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 354 transitions. [2023-12-02 16:10:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 16:10:29,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:10:29,098 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] [2023-12-02 16:10:29,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (25)] Ended with exit code 0 [2023-12-02 16:10:29,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:10:29,298 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:10:29,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:10:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash -388776175, now seen corresponding path program 1 times [2023-12-02 16:10:29,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:10:29,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866448449] [2023-12-02 16:10:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:10:29,299 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 16:10:29,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:10:29,301 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:10:29,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (26)] Waiting until timeout for monitored process [2023-12-02 16:10:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:10:29,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 16:10:29,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:10:30,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:31,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:33,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:34,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:35,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:36,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:37,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:10:37,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:10:37,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 56 [2023-12-02 16:10:47,659 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:10:48,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 128 [2023-12-02 16:10:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:10:48,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:10:51,118 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_572 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem69#1| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (let ((.cse2 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_572))) (or (not (fp.leq (let ((.cse0 (let ((.cse1 (select .cse2 c_~var_1_15_Pointer~0.base))) (concat (select .cse1 (bvadd (_ bv4 32) c_~var_1_15_Pointer~0.offset)) (select .cse1 c_~var_1_15_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start_property_#t~mem69#1|)) (not (fp.lt (let ((.cse3 (let ((.cse4 (select .cse2 c_~var_1_8_Pointer~0.base))) (concat (select .cse4 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse4 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))) ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))))) is different from false [2023-12-02 16:10:51,355 WARN L854 $PredicateComparison]: unable to prove that (or (fp.leq |c_ULTIMATE.start_step_#t~mem34#1| |c_ULTIMATE.start_step_#t~mem35#1|) (forall ((v_ArrVal_572 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem69#1| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (let ((.cse2 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_572))) (or (not (fp.leq (let ((.cse0 (let ((.cse1 (select .cse2 c_~var_1_15_Pointer~0.base))) (concat (select .cse1 (bvadd (_ bv4 32) c_~var_1_15_Pointer~0.offset)) (select .cse1 c_~var_1_15_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start_property_#t~mem69#1|)) (not (fp.lt (let ((.cse3 (let ((.cse4 (select .cse2 c_~var_1_8_Pointer~0.base))) (concat (select .cse4 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse4 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))) ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))))))) is different from false [2023-12-02 16:10:52,492 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_15_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_116| (_ BitVec 64)) (v_ArrVal_572 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem69#1| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (let ((.cse3 (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_570)) (.cse7 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_116|)) (.cse13 (bvadd (_ bv4 32) ~var_1_15_Pointer~0.offset)) (.cse6 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_116|))) (let ((.cse2 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (.cse10 (store (store .cse3 c_~var_1_15_Pointer~0.base (store (store (select .cse3 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset .cse7) .cse13 .cse6)) c_~var_1_1_Pointer~0.base v_ArrVal_572))) (or (not (= (let ((.cse0 (let ((.cse1 (select .cse3 c_~var_1_8_Pointer~0.base))) (concat (select .cse1 .cse2) (select .cse1 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_116|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_116|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_116|)))) (let ((.cse4 (let ((.cse5 (concat .cse6 .cse7))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (fp.leq .cse4 .cse4)) (not (fp.lt (let ((.cse8 (let ((.cse9 (select .cse10 c_~var_1_8_Pointer~0.base))) (concat (select .cse9 .cse2) (select .cse9 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse8) ((_ extract 62 52) .cse8) ((_ extract 51 0) .cse8))) ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (not (fp.leq (let ((.cse11 (let ((.cse12 (select .cse10 c_~var_1_15_Pointer~0.base))) (concat (select .cse12 .cse13) (select .cse12 ~var_1_15_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse11) ((_ extract 62 52) .cse11) ((_ extract 51 0) .cse11))) |ULTIMATE.start_property_#t~mem69#1|)))))) is different from false [2023-12-02 16:10:53,505 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_15_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_116| (_ BitVec 64)) (v_ArrVal_572 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem69#1| (_ FloatingPoint 11 53)) (v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32))) (currentRoundingMode RoundingMode)) (let ((.cse6 (store (store |c_#memory_int| c_~var_1_9_Pointer~0.base v_ArrVal_569) c_~var_1_12_Pointer~0.base v_ArrVal_570)) (.cse10 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_116|)) (.cse13 (bvadd (_ bv4 32) ~var_1_15_Pointer~0.offset)) (.cse9 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_116|))) (let ((.cse2 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (.cse3 (store (store .cse6 c_~var_1_15_Pointer~0.base (store (store (select .cse6 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset .cse10) .cse13 .cse9)) c_~var_1_1_Pointer~0.base v_ArrVal_572))) (or (not (fp.lt (let ((.cse0 (let ((.cse1 (select .cse3 c_~var_1_8_Pointer~0.base))) (concat (select .cse1 .cse2) (select .cse1 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_116|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_116|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_116|)) (let ((.cse4 (let ((.cse5 (select .cse6 c_~var_1_8_Pointer~0.base))) (concat (select .cse5 .cse2) (select .cse5 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (let ((.cse7 (let ((.cse8 (concat .cse9 .cse10))) (fp ((_ extract 63 63) .cse8) ((_ extract 62 52) .cse8) ((_ extract 51 0) .cse8))))) (fp.leq .cse7 .cse7)) (not (fp.leq (let ((.cse11 (let ((.cse12 (select .cse3 c_~var_1_15_Pointer~0.base))) (concat (select .cse12 .cse13) (select .cse12 ~var_1_15_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse11) ((_ extract 62 52) .cse11) ((_ extract 51 0) .cse11))) |ULTIMATE.start_property_#t~mem69#1|)))))) is different from false [2023-12-02 16:10:54,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:10:54,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866448449] [2023-12-02 16:10:54,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866448449] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:10:54,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [144902609] [2023-12-02 16:10:54,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:10:54,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:10:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:10:54,031 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:10:54,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 16:10:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:10:55,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:10:55,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:10:57,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:11:03,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:11:06,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:11:08,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:11:10,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2023-12-02 16:11:11,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2023-12-02 16:11:12,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2023-12-02 16:11:12,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2023-12-02 16:11:13,460 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 4 proven. 128 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:11:13,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:11:14,601 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_601 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~var_1_15_Pointer~0.base v_ArrVal_601))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:11:14,660 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_12_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_601 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_12_Pointer~0.base (store (select |c_#memory_int| c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))) c_~var_1_15_Pointer~0.base v_ArrVal_601))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:11:14,807 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_9_Pointer~0.offset (_ BitVec 32)) (~var_1_12_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_601 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (let ((.cse2 ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))))) (let ((.cse1 (store |c_#memory_int| c_~var_1_9_Pointer~0.base (store (select |c_#memory_int| c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset .cse2)))) (store .cse1 c_~var_1_12_Pointer~0.base (store (select .cse1 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) .cse2)))))) c_~var_1_15_Pointer~0.base v_ArrVal_601))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:11:14,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [144902609] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:11:14,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986486043] [2023-12-02 16:11:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:14,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:11:14,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:11:14,883 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:11:14,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-02 16:11:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:15,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 16:11:15,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:17,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 16:11:20,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2023-12-02 16:11:21,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:11:21,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 44 [2023-12-02 16:11:21,774 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 16:11:21,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:11:21,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986486043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:11:21,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:11:21,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 19] total 36 [2023-12-02 16:11:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385069856] [2023-12-02 16:11:21,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:11:21,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:11:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:11:21,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:11:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1712, Unknown=7, NotChecked=630, Total=2550 [2023-12-02 16:11:21,778 INFO L87 Difference]: Start difference. First operand 271 states and 354 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 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 16:11:26,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:11:26,207 INFO L93 Difference]: Finished difference Result 494 states and 650 transitions. [2023-12-02 16:11:26,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:11:26,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 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 82 [2023-12-02 16:11:26,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:11:26,211 INFO L225 Difference]: With dead ends: 494 [2023-12-02 16:11:26,211 INFO L226 Difference]: Without dead ends: 321 [2023-12-02 16:11:26,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=210, Invalid=1791, Unknown=7, NotChecked=644, Total=2652 [2023-12-02 16:11:26,213 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 183 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:11:26,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 380 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 16:11:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-02 16:11:26,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 264. [2023-12-02 16:11:26,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 237 states have (on average 1.2869198312236287) internal successors, (305), 237 states have internal predecessors, (305), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:11:26,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 341 transitions. [2023-12-02 16:11:26,263 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 341 transitions. Word has length 82 [2023-12-02 16:11:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:11:26,263 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 341 transitions. [2023-12-02 16:11:26,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 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 16:11:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 341 transitions. [2023-12-02 16:11:26,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 16:11:26,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:11:26,265 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] [2023-12-02 16:11:26,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-12-02 16:11:26,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (26)] Forceful destruction successful, exit code 0 [2023-12-02 16:11:26,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-12-02 16:11:26,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:11:26,866 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:11:26,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:11:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1379705531, now seen corresponding path program 1 times [2023-12-02 16:11:26,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:11:26,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416394453] [2023-12-02 16:11:26,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:26,867 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 16:11:26,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:11:26,868 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:11:26,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (29)] Waiting until timeout for monitored process [2023-12-02 16:11:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:27,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:11:27,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:27,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:11:30,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:11:32,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:11:34,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:11:35,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:11:37,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:11:37,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:11:39,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:11:39,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 62 [2023-12-02 16:11:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:11:40,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:11:41,357 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_654 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_129| (_ BitVec 64))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_129|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_129|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_129|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_129|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_129|)) (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_654) c_~var_1_8_Pointer~0.base))) (concat (select .cse3 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse3 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))))) is different from false [2023-12-02 16:11:41,531 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_653 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_654 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_129| (_ BitVec 64))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_129|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_129|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_129|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_129|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_129|)) (let ((.cse2 (let ((.cse3 (select (store (store |c_#memory_int| c_~var_1_9_Pointer~0.base v_ArrVal_653) c_~var_1_12_Pointer~0.base v_ArrVal_654) c_~var_1_8_Pointer~0.base))) (concat (select .cse3 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (select .cse3 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))))) is different from false [2023-12-02 16:11:41,621 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:11:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416394453] [2023-12-02 16:11:41,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416394453] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:11:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1707202712] [2023-12-02 16:11:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:41,622 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:11:41,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:11:41,623 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:11:41,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 16:11:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:42,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 16:11:42,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:44,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:11:48,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:11:51,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:11:52,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-12-02 16:11:54,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2023-12-02 16:11:55,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2023-12-02 16:11:56,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 40 [2023-12-02 16:11:56,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2023-12-02 16:11:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 4 proven. 128 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 16:11:57,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:11:59,086 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_686 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_12_Pointer~0.offset (_ BitVec 32))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_12_Pointer~0.base (store (select |c_#memory_int| c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))) c_~var_1_15_Pointer~0.base v_ArrVal_686))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:11:59,215 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_686 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_9_Pointer~0.offset (_ BitVec 32)) (~var_1_12_Pointer~0.offset (_ BitVec 32))) (not (let ((.cse0 (store (let ((.cse2 ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))))) (let ((.cse1 (store |c_#memory_int| c_~var_1_9_Pointer~0.base (store (select |c_#memory_int| c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset .cse2)))) (store .cse1 c_~var_1_12_Pointer~0.base (store (select .cse1 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) .cse2)))))) c_~var_1_15_Pointer~0.base v_ArrVal_686))) (bvsgt (select (select .cse0 c_~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))))) is different from false [2023-12-02 16:11:59,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1707202712] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:11:59,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327289874] [2023-12-02 16:11:59,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:59,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:11:59,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:11:59,286 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:11:59,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-12-02 16:11:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:59,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 16:11:59,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:12:03,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-12-02 16:12:04,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2023-12-02 16:12:05,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2023-12-02 16:12:05,248 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 16:12:05,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:12:05,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327289874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:05,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:12:05,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 15] total 31 [2023-12-02 16:12:05,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686638436] [2023-12-02 16:12:05,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:05,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:12:05,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:12:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:12:05,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1181, Unknown=30, NotChecked=292, Total=1640 [2023-12-02 16:12:05,251 INFO L87 Difference]: Start difference. First operand 264 states and 341 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 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 16:12:07,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:12:08,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:12:10,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:12:10,000 INFO L93 Difference]: Finished difference Result 487 states and 633 transitions. [2023-12-02 16:12:10,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:12:10,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 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 82 [2023-12-02 16:12:10,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:12:10,004 INFO L225 Difference]: With dead ends: 487 [2023-12-02 16:12:10,004 INFO L226 Difference]: Without dead ends: 323 [2023-12-02 16:12:10,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=146, Invalid=1246, Unknown=30, NotChecked=300, Total=1722 [2023-12-02 16:12:10,005 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 208 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:12:10,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 182 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 16:12:10,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-02 16:12:10,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 258. [2023-12-02 16:12:10,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 231 states have (on average 1.2640692640692641) internal successors, (292), 231 states have internal predecessors, (292), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:12:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 328 transitions. [2023-12-02 16:12:10,036 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 328 transitions. Word has length 82 [2023-12-02 16:12:10,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:12:10,036 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 328 transitions. [2023-12-02 16:12:10,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 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 16:12:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 328 transitions. [2023-12-02 16:12:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 16:12:10,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:12:10,037 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] [2023-12-02 16:12:10,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 16:12:10,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (29)] Forceful destruction successful, exit code 0 [2023-12-02 16:12:10,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-12-02 16:12:10,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:12:10,638 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:12:10,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:12:10,638 INFO L85 PathProgramCache]: Analyzing trace with hash -632382722, now seen corresponding path program 1 times [2023-12-02 16:12:10,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:12:10,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488653574] [2023-12-02 16:12:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:10,639 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 16:12:10,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:12:10,640 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:12:10,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (32)] Waiting until timeout for monitored process [2023-12-02 16:12:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:10,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 16:12:10,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:12:11,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:12:13,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 16:12:16,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-12-02 16:12:18,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-12-02 16:12:19,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-12-02 16:12:21,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2023-12-02 16:12:21,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2023-12-02 16:12:23,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2023-12-02 16:12:23,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2023-12-02 16:12:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:12:23,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:12:26,431 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_737 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_738 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| c_~var_1_15_Pointer~0.base v_ArrVal_737))) (or (let ((.cse1 (store .cse2 c_~var_1_1_Pointer~0.base v_ArrVal_738))) (let ((.cse0 (select (select .cse1 c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset))) (bvsge (bvmul (_ bv2 32) .cse0) (bvadd ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) .cse0)))) (not (let ((.cse3 (select (select .cse2 c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset))) (bvsge (bvmul (_ bv2 32) .cse3) (bvadd ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse2 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) .cse3))))))) is different from false [2023-12-02 16:12:26,746 WARN L854 $PredicateComparison]: unable to prove that (forall ((~var_1_9_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_737 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_738 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_9_Pointer~0.base (store (select |c_#memory_int| c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset ((_ sign_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))))) c_~var_1_15_Pointer~0.base v_ArrVal_737))) (or (not (let ((.cse0 (select (select .cse1 c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset))) (bvsge (bvmul .cse0 (_ bv2 32)) (bvadd .cse0 ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))))) (let ((.cse3 (store .cse1 c_~var_1_1_Pointer~0.base v_ArrVal_738))) (let ((.cse2 (select (select .cse3 c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset))) (bvsge (bvmul .cse2 (_ bv2 32)) (bvadd .cse2 ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse3 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)))))))))) is different from false [2023-12-02 16:12:26,897 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:12:26,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488653574] [2023-12-02 16:12:26,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488653574] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:12:26,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1797346012] [2023-12-02 16:12:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:26,897 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:12:26,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:12:26,898 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:12:26,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 16:12:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:27,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:12:27,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:12:30,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:12:35,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:12:37,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:12:39,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2023-12-02 16:12:41,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-12-02 16:12:42,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:12:43,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:12:44,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 40 [2023-12-02 16:12:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 3 proven. 128 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 16:12:46,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:12:50,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1797346012] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:12:50,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345155283] [2023-12-02 16:12:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:12:50,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:12:50,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:12:50,260 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:12:50,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-12-02 16:12:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:12:50,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 16:12:50,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:12:54,434 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2023-12-02 16:12:54,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2023-12-02 16:12:55,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 16:12:57,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-12-02 16:12:58,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2023-12-02 16:12:59,522 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 16:12:59,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:12:59,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345155283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:12:59,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:12:59,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17, 21] total 44 [2023-12-02 16:12:59,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648328577] [2023-12-02 16:12:59,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:12:59,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 16:12:59,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:12:59,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 16:12:59,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2656, Unknown=83, NotChecked=214, Total=3192 [2023-12-02 16:12:59,525 INFO L87 Difference]: Start difference. First operand 258 states and 328 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 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 16:13:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:13:08,765 INFO L93 Difference]: Finished difference Result 572 states and 743 transitions. [2023-12-02 16:13:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:13:08,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 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 83 [2023-12-02 16:13:08,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:13:08,768 INFO L225 Difference]: With dead ends: 572 [2023-12-02 16:13:08,769 INFO L226 Difference]: Without dead ends: 417 [2023-12-02 16:13:08,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=286, Invalid=3061, Unknown=83, NotChecked=230, Total=3660 [2023-12-02 16:13:08,771 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 519 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:13:08,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 347 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-12-02 16:13:08,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-12-02 16:13:08,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 269. [2023-12-02 16:13:08,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 242 states have (on average 1.28099173553719) internal successors, (310), 242 states have internal predecessors, (310), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:13:08,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 346 transitions. [2023-12-02 16:13:08,799 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 346 transitions. Word has length 83 [2023-12-02 16:13:08,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:13:08,800 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 346 transitions. [2023-12-02 16:13:08,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 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 16:13:08,800 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 346 transitions. [2023-12-02 16:13:08,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 16:13:08,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:13:08,801 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] [2023-12-02 16:13:08,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 16:13:09,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-12-02 16:13:09,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (32)] Ended with exit code 0 [2023-12-02 16:13:09,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:13:09,402 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:13:09,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:13:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 916216868, now seen corresponding path program 1 times [2023-12-02 16:13:09,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:13:09,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034080988] [2023-12-02 16:13:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:09,403 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 16:13:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:13:09,404 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 16:13:09,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (35)] Waiting until timeout for monitored process [2023-12-02 16:13:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:09,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 16:13:09,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:10,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:13:13,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:13:16,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:13:19,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:13:21,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:13:23,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:13:24,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-12-02 16:13:25,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:25,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 97 [2023-12-02 16:13:27,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:27,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 309 treesize of output 119 [2023-12-02 16:13:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:13:29,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:13:40,997 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_154| (_ BitVec 64)) (v_ArrVal_813 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_1_Pointer~0.offset (_ BitVec 32))) (let ((.cse5 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_154|)) (.cse4 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_154|)) (.cse8 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (.cse9 (store |c_#memory_int| c_~var_1_15_Pointer~0.base v_ArrVal_813))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse0 (let ((.cse10 (let ((.cse11 (select .cse9 c_~var_1_8_Pointer~0.base))) (concat (select .cse11 .cse8) (select .cse11 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse10) ((_ extract 62 52) .cse10) ((_ extract 51 0) .cse10)))) (.cse2 (let ((.cse6 (let ((.cse7 (select (store .cse9 c_~var_1_1_Pointer~0.base (store (store (select .cse9 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse5) (bvadd (_ bv4 32) ~var_1_1_Pointer~0.offset) .cse4)) c_~var_1_8_Pointer~0.base))) (concat (select .cse7 .cse8) (select .cse7 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse1)) (not (= (fp.neg .cse0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_154|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_154|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_154|)))) (fp.eq (let ((.cse3 (concat .cse4 .cse5))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))) (fp.neg .cse2)))))) is different from false [2023-12-02 16:13:42,107 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_154| (_ BitVec 64)) (v_ArrVal_813 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_812 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (bvadd c_~var_1_8_Pointer~0.offset (_ bv4 32))) (.cse9 (store (store |c_#memory_int| c_~var_1_9_Pointer~0.base v_ArrVal_812) c_~var_1_15_Pointer~0.base v_ArrVal_813)) (.cse2 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_154|)) (.cse1 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_154|))) (let ((.cse3 (let ((.cse10 (let ((.cse11 (select (store .cse9 c_~var_1_1_Pointer~0.base (store (store (select .cse9 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse2) (bvadd (_ bv4 32) ~var_1_1_Pointer~0.offset) .cse1)) c_~var_1_8_Pointer~0.base))) (concat (select .cse11 .cse8) (select .cse11 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse10) ((_ extract 62 52) .cse10) ((_ extract 51 0) .cse10)))) (.cse5 (let ((.cse6 (let ((.cse7 (select .cse9 c_~var_1_8_Pointer~0.base))) (concat (select .cse7 .cse8) (select .cse7 c_~var_1_8_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6)))) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (fp.eq (let ((.cse0 (concat .cse1 .cse2))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp.neg .cse3)) (not (fp.lt .cse3 .cse4)) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_154|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_154|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_154|)) (fp.neg .cse5))) (not (fp.lt .cse5 .cse4)))))) is different from false [2023-12-02 16:13:42,633 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:13:42,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034080988] [2023-12-02 16:13:42,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034080988] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:42,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [65325933] [2023-12-02 16:13:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:42,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:13:42,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:13:42,635 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:13:42,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 16:13:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:43,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-02 16:13:43,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:44,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2023-12-02 16:13:51,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:13:55,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:13:58,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:14:02,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:14:05,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:14:07,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 76 [2023-12-02 16:14:11,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 97 [2023-12-02 16:14:14,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 132 [2023-12-02 16:14:20,074 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:14:20,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:20,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2023-12-02 16:14:20,641 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-12-02 16:14:20,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2023-12-02 16:14:20,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362925382] [2023-12-02 16:14:20,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:20,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:20,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:20,643 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:20,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-12-02 16:14:20,742 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@630f7fad at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramVarUtils.constructConstantForAuxVar(ProgramVarUtils.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.computeClosedFormula(UnmodifiableTransFormula.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:90) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:320) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.decoupleArrayValues(TransFormulaUtils.java:1297) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:387) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 16:14:20,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:14:20,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-12-02 16:14:20,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116238690] [2023-12-02 16:14:20,745 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-02 16:14:20,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 16:14:20,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:14:20,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 16:14:20,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1735, Unknown=6, NotChecked=174, Total=2162 [2023-12-02 16:14:20,747 INFO L87 Difference]: Start difference. First operand 269 states and 346 transitions. Second operand has 21 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 5 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-12-02 16:14:20,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:14:20,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=247, Invalid=1735, Unknown=6, NotChecked=174, Total=2162 [2023-12-02 16:14:20,748 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:20,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:14:20,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-12-02 16:14:20,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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 (35)] Ended with exit code 0 [2023-12-02 16:14:21,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 16:14:21,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/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=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bd7041-9723-4a9a-902b-4736ed4c48f0/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:14:21,350 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@630f7fad at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:460) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:104) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 16:14:21,352 INFO L158 Benchmark]: Toolchain (without parser) took 693618.00ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 77.7MB in the beginning and 68.4MB in the end (delta: 9.4MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2023-12-02 16:14:21,352 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory is still 44.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:14:21,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.73ms. Allocated memory is still 100.7MB. Free memory was 77.5MB in the beginning and 63.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:14:21,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.68ms. Allocated memory is still 100.7MB. Free memory was 63.1MB in the beginning and 60.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:14:21,352 INFO L158 Benchmark]: Boogie Preprocessor took 52.26ms. Allocated memory is still 100.7MB. Free memory was 60.0MB in the beginning and 57.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:14:21,353 INFO L158 Benchmark]: RCFGBuilder took 840.80ms. Allocated memory is still 100.7MB. Free memory was 56.9MB in the beginning and 44.6MB in the end (delta: 12.4MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-12-02 16:14:21,353 INFO L158 Benchmark]: TraceAbstraction took 692350.60ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 43.7MB in the beginning and 68.4MB in the end (delta: -24.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-12-02 16:14:21,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory is still 44.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.73ms. Allocated memory is still 100.7MB. Free memory was 77.5MB in the beginning and 63.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.68ms. Allocated memory is still 100.7MB. Free memory was 63.1MB in the beginning and 60.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.26ms. Allocated memory is still 100.7MB. Free memory was 60.0MB in the beginning and 57.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 840.80ms. Allocated memory is still 100.7MB. Free memory was 56.9MB in the beginning and 44.6MB in the end (delta: 12.4MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * TraceAbstraction took 692350.60ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 43.7MB in the beginning and 68.4MB in the end (delta: -24.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@630f7fad de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@630f7fad: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@630f7fad