./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.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_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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_15931a77-340b-4032-a218-c828f9ee7754/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 ee35e7bcfbc20dfdadfe45142e787a44862e2858c386c8809c339b2b306485b2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:01:20,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:01:20,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:01:20,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:01:20,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:01:20,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:01:20,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:01:20,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:01:20,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:01:20,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:01:20,482 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:01:20,483 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:01:20,483 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:01:20,484 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:01:20,484 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:01:20,485 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:01:20,485 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:01:20,486 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:01:20,486 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:01:20,487 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:01:20,488 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:01:20,491 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:01:20,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:01:20,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:01:20,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:01:20,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:01:20,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:01:20,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:01:20,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:01:20,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:01:20,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:01:20,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:01:20,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:01:20,495 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:01:20,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:01:20,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:01:20,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:01:20,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:01:20,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:01:20,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:01:20,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:01:20,497 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:01:20,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:01:20,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:01:20,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:01:20,497 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:01:20,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:01:20,498 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_15931a77-340b-4032-a218-c828f9ee7754/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee35e7bcfbc20dfdadfe45142e787a44862e2858c386c8809c339b2b306485b2 [2023-12-02 17:01:20,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:01:20,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:01:20,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:01:20,738 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:01:20,738 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:01:20,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i [2023-12-02 17:01:23,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:01:23,614 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:01:23,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i [2023-12-02 17:01:23,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data/dc252e78d/f81ee42c90c844db843fad89f378acd2/FLAGbe9e4a2dc [2023-12-02 17:01:23,635 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data/dc252e78d/f81ee42c90c844db843fad89f378acd2 [2023-12-02 17:01:23,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:01:23,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:01:23,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:01:23,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:01:23,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:01:23,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:23,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184c86a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23, skipping insertion in model container [2023-12-02 17:01:23,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:23,678 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:01:23,796 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_15931a77-340b-4032-a218-c828f9ee7754/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i[917,930] [2023-12-02 17:01:23,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:01:23,861 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:01:23,871 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_15931a77-340b-4032-a218-c828f9ee7754/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i[917,930] [2023-12-02 17:01:23,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:01:23,922 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:01:23,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23 WrapperNode [2023-12-02 17:01:23,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:01:23,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:01:23,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:01:23,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:01:23,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:23,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:23,979 INFO L138 Inliner]: procedures = 29, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 420 [2023-12-02 17:01:23,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:01:23,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:01:23,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:01:23,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:01:23,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:23,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:23,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:23,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:24,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:24,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:24,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:24,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:24,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:01:24,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:01:24,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:01:24,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:01:24,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (1/1) ... [2023-12-02 17:01:24,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:01:24,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:01:24,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:01:24,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:01:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:01:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 17:01:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:01:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 17:01:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:01:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 17:01:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:01:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:01:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:01:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:01:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:01:24,204 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:01:24,206 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:01:24,610 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:01:25,123 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:01:25,124 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:01:25,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:01:25 BoogieIcfgContainer [2023-12-02 17:01:25,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:01:25,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:01:25,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:01:25,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:01:25,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:01:23" (1/3) ... [2023-12-02 17:01:25,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470acc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:01:25, skipping insertion in model container [2023-12-02 17:01:25,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:23" (2/3) ... [2023-12-02 17:01:25,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470acc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:01:25, skipping insertion in model container [2023-12-02 17:01:25,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:01:25" (3/3) ... [2023-12-02 17:01:25,134 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-69.i [2023-12-02 17:01:25,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:01:25,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:01:25,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:01:25,197 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;@50f9fcef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:01:25,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:01:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:01:25,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 17:01:25,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:01:25,212 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:25,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:01:25,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:01:25,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1640463473, now seen corresponding path program 1 times [2023-12-02 17:01:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:01:25,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094154868] [2023-12-02 17:01:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:01:25,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:01:25,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:01:25,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473515841] [2023-12-02 17:01:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:01:25,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:01:25,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:01:25,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:01:25,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:01:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:01:42,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 17:01:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:01:46,053 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 17:01:46,055 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 17:01:46,056 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 17:01:46,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:01:46,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 17:01:46,270 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 17:01:46,274 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:01:46,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 17:01:46,332 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 17:01:46,333 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 17:01:46,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-12-02 17:01:46,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-12-02 17:01:46,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-12-02 17:01:46,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 17:01:46,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 17:01:46,338 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 17:01:46,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-12-02 17:01:46,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 17:01:46,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 17:01:46,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-12-02 17:01:46,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated [2023-12-02 17:01:46,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 17:01:46,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 17:01:46,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 17:01:46,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 17:01:46,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 17:01:46,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 17:01:46,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 17:01:46,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 17:01:46,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 17:01:46,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 17:01:46,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-12-02 17:01:46,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-12-02 17:01:46,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 17:01:46,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 17:01:46,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 17:01:46,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-12-02 17:01:46,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 17:01:46,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 17:01:46,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 17:01:46,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 17:01:46,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 17:01:46,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 17:01:46,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 17:01:46,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-12-02 17:01:46,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 17:01:46,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 17:01:46,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 17:01:46,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 17:01:46,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:01:46 BoogieIcfgContainer [2023-12-02 17:01:46,376 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:01:46,377 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:01:46,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:01:46,377 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:01:46,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:01:25" (3/4) ... [2023-12-02 17:01:46,379 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 17:01:46,380 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:01:46,381 INFO L158 Benchmark]: Toolchain (without parser) took 22742.16ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 130.5MB in the beginning and 162.9MB in the end (delta: -32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 17:01:46,382 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 165.7MB. Free memory was 137.2MB in the beginning and 137.2MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:01:46,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.20ms. Allocated memory is still 165.7MB. Free memory was 130.5MB in the beginning and 115.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 17:01:46,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.40ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 112.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 17:01:46,383 INFO L158 Benchmark]: Boogie Preprocessor took 46.21ms. Allocated memory is still 165.7MB. Free memory was 112.5MB in the beginning and 109.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:01:46,384 INFO L158 Benchmark]: RCFGBuilder took 1098.17ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 109.9MB in the beginning and 139.8MB in the end (delta: -29.9MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2023-12-02 17:01:46,385 INFO L158 Benchmark]: TraceAbstraction took 21247.92ms. Allocated memory is still 228.6MB. Free memory was 138.8MB in the beginning and 162.9MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:01:46,385 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 228.6MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:01:46,388 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 165.7MB. Free memory was 137.2MB in the beginning and 137.2MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.20ms. Allocated memory is still 165.7MB. Free memory was 130.5MB in the beginning and 115.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.40ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 112.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.21ms. Allocated memory is still 165.7MB. Free memory was 112.5MB in the beginning and 109.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1098.17ms. Allocated memory was 165.7MB in the beginning and 228.6MB in the end (delta: 62.9MB). Free memory was 109.9MB in the beginning and 139.8MB in the end (delta: -29.9MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. * TraceAbstraction took 21247.92ms. Allocated memory is still 228.6MB. Free memory was 138.8MB in the beginning and 162.9MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 228.6MB. Free memory is still 162.9MB. 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~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~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~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation 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 129. Possible FailurePath: [L35] unsigned char isInitial = 0; [L36-L48] struct WrapperStruct00 WrapperStruct00 = { -100, 0, 8, 256, 500, -64, -8, 0, 0, 4.625, 15.5 }; [L49] signed short int* WrapperStruct00_var_1_1_Pointer = &(WrapperStruct00.var_1_1); [L50] unsigned long int* WrapperStruct00_var_1_2_Pointer = &(WrapperStruct00.var_1_2); [L51] unsigned long int* WrapperStruct00_var_1_3_Pointer = &(WrapperStruct00.var_1_3); [L52] unsigned long int* WrapperStruct00_var_1_4_Pointer = &(WrapperStruct00.var_1_4); [L53] unsigned long int* WrapperStruct00_var_1_5_Pointer = &(WrapperStruct00.var_1_5); [L54] signed char* WrapperStruct00_var_1_7_Pointer = &(WrapperStruct00.var_1_7); [L55] signed char* WrapperStruct00_var_1_8_Pointer = &(WrapperStruct00.var_1_8); [L56] unsigned char* WrapperStruct00_var_1_9_Pointer = &(WrapperStruct00.var_1_9); [L57] unsigned char* WrapperStruct00_var_1_10_Pointer = &(WrapperStruct00.var_1_10); [L58] double* WrapperStruct00_var_1_11_Pointer = &(WrapperStruct00.var_1_11); [L59] double* WrapperStruct00_var_1_13_Pointer = &(WrapperStruct00.var_1_13); [L133] isInitial = 1 [L134] FCALL initially() [L135] COND TRUE 1 [L136] FCALL updateLastVariables() [L137] CALL updateVariables() [L102] WrapperStruct00.var_1_2 = __VERIFIER_nondet_ulong() [L103] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L104] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L105] WrapperStruct00.var_1_3 = __VERIFIER_nondet_ulong() [L106] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L107] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L108] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ulong() [L109] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L110] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L111] WrapperStruct00.var_1_5 = __VERIFIER_nondet_ulong() [L112] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L112] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L113] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 4294967295) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L114] WrapperStruct00.var_1_8 = __VERIFIER_nondet_char() [L115] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L115] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -127) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -127) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L116] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L117] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L118] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L118] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L119] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L119] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L120] WrapperStruct00.var_1_10 = __VERIFIER_nondet_uchar() [L121] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L121] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L122] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L122] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L123] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L124] EXPR WrapperStruct00.var_1_13 [L124] EXPR WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L124] EXPR WrapperStruct00.var_1_13 [L124] EXPR WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L124] EXPR (WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L124] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, isInitial=1] [L137] RET updateVariables() [L138] CALL step() [L63] EXPR \read(*WrapperStruct00_var_1_2_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_3_Pointer) [L63] EXPR ((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer))) [L63] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L63] EXPR ((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer))) [L63] COND FALSE !((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) [L66] EXPR \read(*WrapperStruct00_var_1_9_Pointer) [L66] (*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer)) [L66] EXPR \read(*WrapperStruct00_var_1_10_Pointer) [L66] (*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer)) [L66] COND FALSE !((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) [L69] EXPR \read(*WrapperStruct00_var_1_3_Pointer) [L69] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L69] COND FALSE !((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) [L72] (*(WrapperStruct00_var_1_7_Pointer)) = -4 [L76] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L76] unsigned long int stepLocal_1 = (*(WrapperStruct00_var_1_5_Pointer)); [L77] EXPR \read(*WrapperStruct00_var_1_2_Pointer) [L77] EXPR \read(*WrapperStruct00_var_1_3_Pointer) [L77] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L77] EXPR (((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer))) [L77] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L77] EXPR (((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer))) [L77] unsigned long int stepLocal_0 = (*(WrapperStruct00_var_1_2_Pointer)) * (((((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer))))); [L78] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L78] COND FALSE !(stepLocal_0 < (*(WrapperStruct00_var_1_5_Pointer))) [L85] EXPR \read(*WrapperStruct00_var_1_9_Pointer) [L85] unsigned char stepLocal_3 = (*(WrapperStruct00_var_1_9_Pointer)); [L86] EXPR \read(*WrapperStruct00_var_1_1_Pointer) [L86] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L86] signed long int stepLocal_2 = (*(WrapperStruct00_var_1_1_Pointer)) + (*(WrapperStruct00_var_1_7_Pointer)); [L87] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L87] EXPR \read(*WrapperStruct00_var_1_8_Pointer) [L87] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L87] COND FALSE !((((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && stepLocal_3) [L98] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L98] (*(WrapperStruct00_var_1_11_Pointer)) = (*(WrapperStruct00_var_1_13_Pointer)) [L138] RET step() [L139] CALL, EXPR property() [L129] EXPR \read(*WrapperStruct00_var_1_2_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_3_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L129] EXPR (((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer))) [L129] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L129] EXPR (((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer))) [L129] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L129] EXPR (((*(WrapperStruct00_var_1_2_Pointer)) * (((((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer)))))) < (*(WrapperStruct00_var_1_5_Pointer))) ? (((*(WrapperStruct00_var_1_5_Pointer)) > (*(WrapperStruct00_var_1_2_Pointer))) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer))))) : 1 [L129] EXPR ((((*(WrapperStruct00_var_1_2_Pointer)) * (((((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer)))))) < (*(WrapperStruct00_var_1_5_Pointer))) ? (((*(WrapperStruct00_var_1_5_Pointer)) > (*(WrapperStruct00_var_1_2_Pointer))) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer))))) : 1) && (((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4))))) [L129] EXPR \read(*WrapperStruct00_var_1_2_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_3_Pointer) [L129] EXPR ((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer))) [L129] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L129] EXPR ((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer))) [L129] EXPR ((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4)))) [L129] EXPR \read(*WrapperStruct00_var_1_9_Pointer) [L129] EXPR (*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer)) [L129] EXPR \read(*WrapperStruct00_var_1_10_Pointer) [L129] EXPR (*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer)) [L129] EXPR ((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4))) [L129] EXPR \read(*WrapperStruct00_var_1_3_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L129] EXPR ((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4)) [L129] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L129] EXPR ((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4)) [L129] EXPR ((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4))) [L129] EXPR ((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4)))) [L129] EXPR ((((*(WrapperStruct00_var_1_2_Pointer)) * (((((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer)))))) < (*(WrapperStruct00_var_1_5_Pointer))) ? (((*(WrapperStruct00_var_1_5_Pointer)) > (*(WrapperStruct00_var_1_2_Pointer))) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer))))) : 1) && (((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4))))) [L129] EXPR (((((*(WrapperStruct00_var_1_2_Pointer)) * (((((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer)))))) < (*(WrapperStruct00_var_1_5_Pointer))) ? (((*(WrapperStruct00_var_1_5_Pointer)) > (*(WrapperStruct00_var_1_2_Pointer))) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer))))) : 1) && (((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4)))))) && (((((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && (*(WrapperStruct00_var_1_9_Pointer))) ? ((! (*(WrapperStruct00_var_1_10_Pointer))) ? ((((*(WrapperStruct00_var_1_1_Pointer)) + (*(WrapperStruct00_var_1_7_Pointer))) != (*(WrapperStruct00_var_1_8_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer)))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) [L129] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_8_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_4_Pointer) [L129] EXPR (((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && (*(WrapperStruct00_var_1_9_Pointer)) [L129] EXPR \read(*WrapperStruct00_var_1_9_Pointer) [L129] EXPR (((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && (*(WrapperStruct00_var_1_9_Pointer)) [L129] EXPR ((((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && (*(WrapperStruct00_var_1_9_Pointer))) ? ((! (*(WrapperStruct00_var_1_10_Pointer))) ? ((((*(WrapperStruct00_var_1_1_Pointer)) + (*(WrapperStruct00_var_1_7_Pointer))) != (*(WrapperStruct00_var_1_8_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer)))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer)))) [L129] EXPR \read(*WrapperStruct00_var_1_11_Pointer) [L129] EXPR \read(*WrapperStruct00_var_1_13_Pointer) [L129] EXPR ((((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && (*(WrapperStruct00_var_1_9_Pointer))) ? ((! (*(WrapperStruct00_var_1_10_Pointer))) ? ((((*(WrapperStruct00_var_1_1_Pointer)) + (*(WrapperStruct00_var_1_7_Pointer))) != (*(WrapperStruct00_var_1_8_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer)))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer)))) [L129] EXPR (((((*(WrapperStruct00_var_1_2_Pointer)) * (((((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer)))))) < (*(WrapperStruct00_var_1_5_Pointer))) ? (((*(WrapperStruct00_var_1_5_Pointer)) > (*(WrapperStruct00_var_1_2_Pointer))) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer))))) : 1) && (((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4)))))) && (((((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && (*(WrapperStruct00_var_1_9_Pointer))) ? ((! (*(WrapperStruct00_var_1_10_Pointer))) ? ((((*(WrapperStruct00_var_1_1_Pointer)) + (*(WrapperStruct00_var_1_7_Pointer))) != (*(WrapperStruct00_var_1_8_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer)))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) [L129-L130] return (((((*(WrapperStruct00_var_1_2_Pointer)) * (((((*(WrapperStruct00_var_1_3_Pointer))) < ((*(WrapperStruct00_var_1_4_Pointer)))) ? ((*(WrapperStruct00_var_1_3_Pointer))) : ((*(WrapperStruct00_var_1_4_Pointer)))))) < (*(WrapperStruct00_var_1_5_Pointer))) ? (((*(WrapperStruct00_var_1_5_Pointer)) > (*(WrapperStruct00_var_1_2_Pointer))) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_1_Pointer)) == ((signed short int) (*(WrapperStruct00_var_1_7_Pointer))))) : 1) && (((*(WrapperStruct00_var_1_2_Pointer)) < ((((((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) > ((*(WrapperStruct00_var_1_3_Pointer)))) ? (((*(WrapperStruct00_var_1_4_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_3_Pointer)))))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_9_Pointer)) || (*(WrapperStruct00_var_1_10_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : (((*(WrapperStruct00_var_1_3_Pointer)) < (*(WrapperStruct00_var_1_4_Pointer))) ? ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) (*(WrapperStruct00_var_1_8_Pointer)))) : ((*(WrapperStruct00_var_1_7_Pointer)) == ((signed char) -4)))))) && (((((*(WrapperStruct00_var_1_7_Pointer)) + (*(WrapperStruct00_var_1_8_Pointer))) == (*(WrapperStruct00_var_1_4_Pointer))) && (*(WrapperStruct00_var_1_9_Pointer))) ? ((! (*(WrapperStruct00_var_1_10_Pointer))) ? ((((*(WrapperStruct00_var_1_1_Pointer)) + (*(WrapperStruct00_var_1_7_Pointer))) != (*(WrapperStruct00_var_1_8_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer)))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((double) (*(WrapperStruct00_var_1_13_Pointer))))) ; [L139] RET, EXPR property() [L139] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=0, cond=0, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:21}, WrapperStruct00_var_1_11_Pointer={4:22}, WrapperStruct00_var_1_13_Pointer={4:30}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_2_Pointer={4:2}, WrapperStruct00_var_1_3_Pointer={4:6}, WrapperStruct00_var_1_4_Pointer={4:10}, WrapperStruct00_var_1_5_Pointer={4:14}, WrapperStruct00_var_1_7_Pointer={4:18}, WrapperStruct00_var_1_8_Pointer={4:19}, WrapperStruct00_var_1_9_Pointer={4:20}, \old(cond)=0, cond=0, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.1s, OverallIterations: 1, TraceHistogramMax: 15, 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=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 16.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 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 17:01:46,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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_15931a77-340b-4032-a218-c828f9ee7754/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 ee35e7bcfbc20dfdadfe45142e787a44862e2858c386c8809c339b2b306485b2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:01:48,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:01:48,415 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 17:01:48,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:01:48,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:01:48,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:01:48,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:01:48,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:01:48,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:01:48,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:01:48,453 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:01:48,454 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:01:48,454 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:01:48,455 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:01:48,455 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:01:48,456 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:01:48,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:01:48,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:01:48,458 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:01:48,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:01:48,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:01:48,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:01:48,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:01:48,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:01:48,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:01:48,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:01:48,462 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:01:48,462 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:01:48,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:01:48,463 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:01:48,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:01:48,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:01:48,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:01:48,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:01:48,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:01:48,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:01:48,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:01:48,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:01:48,465 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:01:48,466 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:01:48,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:01:48,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:01:48,468 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:01:48,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:01:48,469 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_15931a77-340b-4032-a218-c828f9ee7754/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee35e7bcfbc20dfdadfe45142e787a44862e2858c386c8809c339b2b306485b2 [2023-12-02 17:01:48,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:01:48,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:01:48,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:01:48,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:01:48,794 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:01:48,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i [2023-12-02 17:01:51,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:01:51,847 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:01:51,847 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i [2023-12-02 17:01:51,859 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data/9732c54f7/75fa017977ff45fcae277440c7fd92b6/FLAG098bf0821 [2023-12-02 17:01:51,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/data/9732c54f7/75fa017977ff45fcae277440c7fd92b6 [2023-12-02 17:01:51,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:01:51,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:01:51,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:01:51,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:01:51,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:01:51,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:01:51" (1/1) ... [2023-12-02 17:01:51,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439b6f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:51, skipping insertion in model container [2023-12-02 17:01:51,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:01:51" (1/1) ... [2023-12-02 17:01:51,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:01:52,069 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_15931a77-340b-4032-a218-c828f9ee7754/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i[917,930] [2023-12-02 17:01:52,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:01:52,146 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:01:52,159 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_15931a77-340b-4032-a218-c828f9ee7754/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-69.i[917,930] [2023-12-02 17:01:52,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:01:52,216 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:01:52,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52 WrapperNode [2023-12-02 17:01:52,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:01:52,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:01:52,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:01:52,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:01:52,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,281 INFO L138 Inliner]: procedures = 36, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 419 [2023-12-02 17:01:52,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:01:52,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:01:52,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:01:52,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:01:52,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:01:52,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:01:52,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:01:52,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:01:52,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (1/1) ... [2023-12-02 17:01:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:01:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:01:52,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:01:52,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:01:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:01:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 17:01:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 17:01:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 17:01:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 17:01:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:01:52,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 17:01:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-12-02 17:01:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 17:01:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 17:01:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:01:52,405 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:01:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:01:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:01:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 17:01:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 17:01:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 17:01:52,525 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:01:52,527 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:01:53,210 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:01:53,246 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:01:53,246 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:01:53,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:01:53 BoogieIcfgContainer [2023-12-02 17:01:53,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:01:53,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:01:53,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:01:53,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:01:53,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:01:51" (1/3) ... [2023-12-02 17:01:53,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de0bebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:01:53, skipping insertion in model container [2023-12-02 17:01:53,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:01:52" (2/3) ... [2023-12-02 17:01:53,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de0bebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:01:53, skipping insertion in model container [2023-12-02 17:01:53,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:01:53" (3/3) ... [2023-12-02 17:01:53,254 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-69.i [2023-12-02 17:01:53,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:01:53,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:01:53,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:01:53,314 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;@7ee71e64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:01:53,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:01:53,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:01:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-02 17:01:53,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:01:53,331 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:53,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:01:53,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:01:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash 245056321, now seen corresponding path program 1 times [2023-12-02 17:01:53,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:01:53,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567768321] [2023-12-02 17:01:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:01:53,349 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 17:01:53,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:01:53,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:53,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:01:53,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 17:01:53,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:01:53,698 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-12-02 17:01:53,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:01:53,699 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:01:53,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567768321] [2023-12-02 17:01:53,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567768321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:01:53,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:01:53,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:01:53,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566845953] [2023-12-02 17:01:53,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:01:53,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:01:53,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:01:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:01:53,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:01:53,731 INFO L87 Difference]: Start difference. First operand has 87 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:01:53,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:01:53,779 INFO L93 Difference]: Finished difference Result 171 states and 277 transitions. [2023-12-02 17:01:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:01:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2023-12-02 17:01:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:01:53,800 INFO L225 Difference]: With dead ends: 171 [2023-12-02 17:01:53,801 INFO L226 Difference]: Without dead ends: 85 [2023-12-02 17:01:53,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:01:53,808 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:01:53,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:01:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-02 17:01:53,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-12-02 17:01:53,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 68 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:01:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 127 transitions. [2023-12-02 17:01:53,848 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 127 transitions. Word has length 114 [2023-12-02 17:01:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:01:53,848 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 127 transitions. [2023-12-02 17:01:53,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:01:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 127 transitions. [2023-12-02 17:01:53,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-02 17:01:53,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:01:53,851 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:53,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:54,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:54,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:01:54,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:01:54,053 INFO L85 PathProgramCache]: Analyzing trace with hash 527557287, now seen corresponding path program 1 times [2023-12-02 17:01:54,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:01:54,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813815274] [2023-12-02 17:01:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:01:54,054 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 17:01:54,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:01:54,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:54,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:01:54,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:01:54,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:01:54,367 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:01:54,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:01:54,367 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:01:54,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813815274] [2023-12-02 17:01:54,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813815274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:01:54,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:01:54,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:01:54,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322902185] [2023-12-02 17:01:54,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:01:54,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:01:54,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:01:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:01:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:01:54,371 INFO L87 Difference]: Start difference. First operand 85 states and 127 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:01:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:01:54,452 INFO L93 Difference]: Finished difference Result 189 states and 284 transitions. [2023-12-02 17:01:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:01:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 114 [2023-12-02 17:01:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:01:54,456 INFO L225 Difference]: With dead ends: 189 [2023-12-02 17:01:54,456 INFO L226 Difference]: Without dead ends: 105 [2023-12-02 17:01:54,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 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 17:01:54,459 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 54 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:01:54,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 372 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:01:54,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-02 17:01:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 87. [2023-12-02 17:01:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 70 states have internal predecessors, (99), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:01:54,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 129 transitions. [2023-12-02 17:01:54,474 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 129 transitions. Word has length 114 [2023-12-02 17:01:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:01:54,476 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 129 transitions. [2023-12-02 17:01:54,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:01:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 129 transitions. [2023-12-02 17:01:54,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 17:01:54,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:01:54,479 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:54,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:54,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:54,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:01:54,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:01:54,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1143719436, now seen corresponding path program 1 times [2023-12-02 17:01:54,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:01:54,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619573870] [2023-12-02 17:01:54,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:01:54,682 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 17:01:54,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:01:54,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:54,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:01:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:01:55,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:01:55,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:01:59,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2023-12-02 17:02:03,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:02:03,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 24 [2023-12-02 17:02:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:02:03,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:02:03,539 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:02:03,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619573870] [2023-12-02 17:02:03,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619573870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:02:03,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:02:03,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 17:02:03,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878511937] [2023-12-02 17:02:03,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:02:03,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:02:03,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:02:03,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:02:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=85, Unknown=1, NotChecked=0, Total=110 [2023-12-02 17:02:03,542 INFO L87 Difference]: Start difference. First operand 87 states and 129 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:02:11,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:02:13,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:02:16,030 WARN L539 Checker$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 17:02:18,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:02:21,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:02:23,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:02:25,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:02:32,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:02:34,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:02:36,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:02:39,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:02:53,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:02:53,968 INFO L93 Difference]: Finished difference Result 270 states and 403 transitions. [2023-12-02 17:02:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 17:02:53,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-02 17:02:53,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:02:53,974 INFO L225 Difference]: With dead ends: 270 [2023-12-02 17:02:53,975 INFO L226 Difference]: Without dead ends: 184 [2023-12-02 17:02:53,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=71, Invalid=199, Unknown=2, NotChecked=0, Total=272 [2023-12-02 17:02:53,976 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 512 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:02:53,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 397 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 824 Invalid, 11 Unknown, 0 Unchecked, 37.3s Time] [2023-12-02 17:02:53,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-02 17:02:53,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 95. [2023-12-02 17:02:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 78 states have internal predecessors, (110), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:02:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 140 transitions. [2023-12-02 17:02:53,990 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 140 transitions. Word has length 116 [2023-12-02 17:02:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:02:53,990 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 140 transitions. [2023-12-02 17:02:53,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:02:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 140 transitions. [2023-12-02 17:02:53,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 17:02:53,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:02:53,992 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:02:53,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:02:54,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:02:54,193 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:02:54,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:02:54,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1401884874, now seen corresponding path program 1 times [2023-12-02 17:02:54,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:02:54,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675142110] [2023-12-02 17:02:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:02:54,195 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 17:02:54,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:02:54,196 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:02:54,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:02:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:02:54,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 17:02:54,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:02:56,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2023-12-02 17:02:58,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:02:58,604 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 3 case distinctions, treesize of input 34 treesize of output 14 [2023-12-02 17:02:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:02:58,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:02:58,629 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:02:58,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675142110] [2023-12-02 17:02:58,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675142110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:02:58,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:02:58,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 17:02:58,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194225364] [2023-12-02 17:02:58,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:02:58,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:02:58,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:02:58,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:02:58,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=28, Unknown=1, NotChecked=0, Total=42 [2023-12-02 17:02:58,631 INFO L87 Difference]: Start difference. First operand 95 states and 140 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:03:01,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:07,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:09,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:11,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:13,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:15,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:17,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:03:18,570 INFO L93 Difference]: Finished difference Result 251 states and 371 transitions. [2023-12-02 17:03:18,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:03:18,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-02 17:03:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:03:18,573 INFO L225 Difference]: With dead ends: 251 [2023-12-02 17:03:18,573 INFO L226 Difference]: Without dead ends: 157 [2023-12-02 17:03:18,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=35, Invalid=72, Unknown=3, NotChecked=0, Total=110 [2023-12-02 17:03:18,575 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 280 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:03:18,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 293 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 8 Unknown, 0 Unchecked, 15.7s Time] [2023-12-02 17:03:18,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-12-02 17:03:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 99. [2023-12-02 17:03:18,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 82 states have internal predecessors, (115), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:03:18,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 145 transitions. [2023-12-02 17:03:18,593 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 145 transitions. Word has length 116 [2023-12-02 17:03:18,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:03:18,593 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 145 transitions. [2023-12-02 17:03:18,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:03:18,594 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 145 transitions. [2023-12-02 17:03:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 17:03:18,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:03:18,596 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:18,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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)] Forceful destruction successful, exit code 0 [2023-12-02 17:03:18,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:03:18,797 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:03:18,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:03:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash -850425270, now seen corresponding path program 1 times [2023-12-02 17:03:18,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:03:18,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121608566] [2023-12-02 17:03:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:03:18,798 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 17:03:18,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:03:18,799 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:03:18,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:03:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:03:19,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 17:03:19,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:03:20,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-12-02 17:03:20,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:03:20,890 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 1 case distinctions, treesize of input 27 treesize of output 11 [2023-12-02 17:03:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:03:20,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:03:20,912 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:03:20,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121608566] [2023-12-02 17:03:20,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121608566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:03:20,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:03:20,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 17:03:20,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287669920] [2023-12-02 17:03:20,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:03:20,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:03:20,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:03:20,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:03:20,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:03:20,914 INFO L87 Difference]: Start difference. First operand 99 states and 145 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:03:22,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:03:22,788 INFO L93 Difference]: Finished difference Result 261 states and 384 transitions. [2023-12-02 17:03:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:03:22,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-02 17:03:22,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:03:22,790 INFO L225 Difference]: With dead ends: 261 [2023-12-02 17:03:22,790 INFO L226 Difference]: Without dead ends: 163 [2023-12-02 17:03:22,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:03:22,792 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 190 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:03:22,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 319 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 17:03:22,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-02 17:03:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 105. [2023-12-02 17:03:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:03:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2023-12-02 17:03:22,803 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 154 transitions. Word has length 116 [2023-12-02 17:03:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:03:22,803 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 154 transitions. [2023-12-02 17:03:22,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:03:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 154 transitions. [2023-12-02 17:03:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 17:03:22,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:03:22,805 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:03:22,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-02 17:03:23,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:03:23,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:03:23,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:03:23,006 INFO L85 PathProgramCache]: Analyzing trace with hash -592259832, now seen corresponding path program 1 times [2023-12-02 17:03:23,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:03:23,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315370995] [2023-12-02 17:03:23,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:03:23,007 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 17:03:23,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:03:23,008 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:03:23,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 17:03:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:03:23,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:03:23,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:03:27,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-02 17:03:30,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:03:30,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 20 [2023-12-02 17:03:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:03:30,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:03:30,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:03:30,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315370995] [2023-12-02 17:03:30,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315370995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:03:30,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:03:30,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 17:03:30,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962432321] [2023-12-02 17:03:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:03:30,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:03:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:03:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:03:30,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=85, Unknown=1, NotChecked=0, Total=110 [2023-12-02 17:03:30,830 INFO L87 Difference]: Start difference. First operand 105 states and 154 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:03:39,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:41,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:44,171 WARN L539 Checker$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 17:03:46,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:53,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:03:56,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:03:58,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:05,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:04:08,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:10,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:04:12,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:19,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:04:19,161 INFO L93 Difference]: Finished difference Result 256 states and 375 transitions. [2023-12-02 17:04:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:04:19,168 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-02 17:04:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:04:19,170 INFO L225 Difference]: With dead ends: 256 [2023-12-02 17:04:19,170 INFO L226 Difference]: Without dead ends: 152 [2023-12-02 17:04:19,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2023-12-02 17:04:19,171 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 256 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:04:19,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 463 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 13 Unknown, 0 Unchecked, 37.3s Time] [2023-12-02 17:04:19,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-02 17:04:19,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 107. [2023-12-02 17:04:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 90 states have (on average 1.4) internal successors, (126), 90 states have internal predecessors, (126), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:04:19,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2023-12-02 17:04:19,188 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 116 [2023-12-02 17:04:19,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:04:19,188 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2023-12-02 17:04:19,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:04:19,189 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2023-12-02 17:04:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 17:04:19,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:04:19,190 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:19,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 17:04:19,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:04:19,391 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:04:19,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:04:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2144468315, now seen corresponding path program 1 times [2023-12-02 17:04:19,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:04:19,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113755146] [2023-12-02 17:04:19,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:04:19,392 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 17:04:19,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:04:19,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:04:19,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 (8)] Waiting until timeout for monitored process [2023-12-02 17:04:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:04:19,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 17:04:19,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:04:21,275 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2023-12-02 17:04:21,275 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 17:04:21,464 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 28 treesize of output 23 [2023-12-02 17:04:21,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2023-12-02 17:04:23,777 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:04:23,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 48 [2023-12-02 17:04:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:04:23,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:04:23,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:04:23,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113755146] [2023-12-02 17:04:23,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113755146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:04:23,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:04:23,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 17:04:23,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376088503] [2023-12-02 17:04:23,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:04:23,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 17:04:23,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:04:23,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 17:04:23,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=53, Unknown=1, NotChecked=0, Total=72 [2023-12-02 17:04:23,840 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:04:26,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:28,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:30,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:33,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:35,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:37,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:04:37,082 INFO L93 Difference]: Finished difference Result 280 states and 411 transitions. [2023-12-02 17:04:37,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 17:04:37,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-02 17:04:37,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:04:37,085 INFO L225 Difference]: With dead ends: 280 [2023-12-02 17:04:37,085 INFO L226 Difference]: Without dead ends: 174 [2023-12-02 17:04:37,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=101, Invalid=204, Unknown=1, NotChecked=0, Total=306 [2023-12-02 17:04:37,086 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 261 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 20 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:04:37,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 418 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 519 Invalid, 8 Unknown, 0 Unchecked, 12.7s Time] [2023-12-02 17:04:37,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-02 17:04:37,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 111. [2023-12-02 17:04:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 94 states have (on average 1.4042553191489362) internal successors, (132), 94 states have internal predecessors, (132), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:04:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2023-12-02 17:04:37,100 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 117 [2023-12-02 17:04:37,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:04:37,101 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2023-12-02 17:04:37,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:04:37,101 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2023-12-02 17:04:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 17:04:37,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:04:37,102 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:04:37,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 (8)] Ended with exit code 0 [2023-12-02 17:04:37,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:04:37,303 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:04:37,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:04:37,303 INFO L85 PathProgramCache]: Analyzing trace with hash 884548090, now seen corresponding path program 1 times [2023-12-02 17:04:37,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:04:37,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226741934] [2023-12-02 17:04:37,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:04:37,303 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 17:04:37,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:04:37,304 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:04:37,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:04:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:04:37,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:04:37,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:04:42,062 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2023-12-02 17:04:42,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 52 [2023-12-02 17:04:43,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2023-12-02 17:04:47,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:04:47,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 25 [2023-12-02 17:04:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:04:47,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:04:47,302 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:04:47,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226741934] [2023-12-02 17:04:47,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226741934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:04:47,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:04:47,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 17:04:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402713606] [2023-12-02 17:04:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:04:47,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:04:47,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:04:47,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:04:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=40, Unknown=1, NotChecked=0, Total=56 [2023-12-02 17:04:47,303 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:04:53,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:04:55,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:04:59,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:01,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:04,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:06,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:05:08,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:10,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:12,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:14,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:05:16,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:18,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:20,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:05:22,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:24,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:26,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:28,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:32,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:34,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:36,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:41,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:43,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:45,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:47,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:49,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:52,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:54,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:56,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:58,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:06:00,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:06:02,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:06:08,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:06:08,112 INFO L93 Difference]: Finished difference Result 288 states and 423 transitions. [2023-12-02 17:06:08,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:06:08,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-02 17:06:08,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:06:08,118 INFO L225 Difference]: With dead ends: 288 [2023-12-02 17:06:08,118 INFO L226 Difference]: Without dead ends: 178 [2023-12-02 17:06:08,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=46, Invalid=107, Unknown=3, NotChecked=0, Total=156 [2023-12-02 17:06:08,119 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 262 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 1 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:06:08,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 545 Invalid, 31 Unknown, 0 Unchecked, 74.5s Time] [2023-12-02 17:06:08,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-02 17:06:08,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 131. [2023-12-02 17:06:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:06:08,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 188 transitions. [2023-12-02 17:06:08,135 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 188 transitions. Word has length 117 [2023-12-02 17:06:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:06:08,135 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 188 transitions. [2023-12-02 17:06:08,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:06:08,135 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 188 transitions. [2023-12-02 17:06:08,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 17:06:08,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:06:08,136 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:08,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:06:08,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:06:08,337 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:06:08,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:06:08,337 INFO L85 PathProgramCache]: Analyzing trace with hash 75201464, now seen corresponding path program 1 times [2023-12-02 17:06:08,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:06:08,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679845321] [2023-12-02 17:06:08,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:06:08,338 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 17:06:08,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:06:08,339 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:06:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:06:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:06:08,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 17:06:08,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:09,879 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 17:06:10,155 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 17:06:10,570 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 24 treesize of output 12 [2023-12-02 17:06:10,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-12-02 17:06:11,241 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 26 treesize of output 28 [2023-12-02 17:06:11,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2023-12-02 17:06:13,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:06:13,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 42 [2023-12-02 17:06:13,772 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 160 proven. 56 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-12-02 17:06:13,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:06:14,327 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:06:14,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679845321] [2023-12-02 17:06:14,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679845321] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:06:14,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [729414817] [2023-12-02 17:06:14,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:06:14,327 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:06:14,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:06:14,328 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:06:14,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 17:06:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:06:15,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 17:06:15,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:16,853 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 17:06:17,356 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 21 treesize of output 20 [2023-12-02 17:06:17,925 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 32 treesize of output 23 [2023-12-02 17:06:18,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2023-12-02 17:06:20,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2023-12-02 17:06:23,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 74 [2023-12-02 17:06:25,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 55 [2023-12-02 17:06:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 224 proven. 56 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-02 17:06:25,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:06:26,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [729414817] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:06:26,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187579698] [2023-12-02 17:06:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:06:26,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:06:26,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:06:26,180 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:06:26,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 17:06:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:06:26,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 17:06:26,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:28,079 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 17:06:28,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2023-12-02 17:06:34,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:06:34,526 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 3 case distinctions, treesize of input 62 treesize of output 34 [2023-12-02 17:06:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-02 17:06:34,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:06:34,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1656 treesize of output 1544 [2023-12-02 17:06:43,145 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:06:43,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187579698] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 17:06:43,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:06:43,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 10, 9] total 25 [2023-12-02 17:06:43,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822469833] [2023-12-02 17:06:43,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:06:43,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:06:43,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:06:43,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:06:43,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=521, Unknown=7, NotChecked=0, Total=650 [2023-12-02 17:06:43,147 INFO L87 Difference]: Start difference. First operand 131 states and 188 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:06:46,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:06:46,722 INFO L93 Difference]: Finished difference Result 338 states and 486 transitions. [2023-12-02 17:06:46,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:06:46,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-02 17:06:46,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:06:46,725 INFO L225 Difference]: With dead ends: 338 [2023-12-02 17:06:46,725 INFO L226 Difference]: Without dead ends: 208 [2023-12-02 17:06:46,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 486 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=172, Invalid=813, Unknown=7, NotChecked=0, Total=992 [2023-12-02 17:06:46,727 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 287 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:06:46,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 330 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 287 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-12-02 17:06:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-02 17:06:46,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 179. [2023-12-02 17:06:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 162 states have (on average 1.4012345679012346) internal successors, (227), 162 states have internal predecessors, (227), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:06:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 257 transitions. [2023-12-02 17:06:46,742 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 257 transitions. Word has length 117 [2023-12-02 17:06:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:06:46,742 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 257 transitions. [2023-12-02 17:06:46,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:06:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 257 transitions. [2023-12-02 17:06:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 17:06:46,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:06:46,744 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:06:46,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 17:06:46,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 17:06:47,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-02 17:06:47,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:06:47,345 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:06:47,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:06:47,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1743331230, now seen corresponding path program 1 times [2023-12-02 17:06:47,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:06:47,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176132721] [2023-12-02 17:06:47,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:06:47,346 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 17:06:47,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:06:47,346 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:06:47,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 17:06:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:06:47,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:06:47,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:51,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2023-12-02 17:06:55,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:06:55,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 24 [2023-12-02 17:06:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:06:55,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:06:55,565 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:06:55,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176132721] [2023-12-02 17:06:55,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176132721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:06:55,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:06:55,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 17:06:55,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143447234] [2023-12-02 17:06:55,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:06:55,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:06:55,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:06:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:06:55,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=85, Unknown=1, NotChecked=0, Total=110 [2023-12-02 17:06:55,567 INFO L87 Difference]: Start difference. First operand 179 states and 257 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:07:04,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:06,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:08,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:10,634 WARN L539 Checker$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 17:07:12,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:15,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:17,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:07:20,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:22,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:07:24,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:26,809 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 17:07:34,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:07:34,143 INFO L93 Difference]: Finished difference Result 424 states and 606 transitions. [2023-12-02 17:07:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:07:34,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-02 17:07:34,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:07:34,148 INFO L225 Difference]: With dead ends: 424 [2023-12-02 17:07:34,148 INFO L226 Difference]: Without dead ends: 246 [2023-12-02 17:07:34,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2023-12-02 17:07:34,149 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 272 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:07:34,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 414 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 11 Unknown, 0 Unchecked, 36.2s Time] [2023-12-02 17:07:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-02 17:07:34,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 179. [2023-12-02 17:07:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 162 states have (on average 1.4012345679012346) internal successors, (227), 162 states have internal predecessors, (227), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:07:34,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 257 transitions. [2023-12-02 17:07:34,167 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 257 transitions. Word has length 117 [2023-12-02 17:07:34,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:07:34,167 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 257 transitions. [2023-12-02 17:07:34,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:07:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 257 transitions. [2023-12-02 17:07:34,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 17:07:34,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:07:34,169 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:07:34,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-02 17:07:34,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:07:34,369 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:07:34,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:07:34,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1120857762, now seen corresponding path program 1 times [2023-12-02 17:07:34,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:07:34,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093225284] [2023-12-02 17:07:34,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:07:34,371 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 17:07:34,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:07:34,371 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:07:34,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:07:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:07:34,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:07:34,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:07:38,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-12-02 17:07:39,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:07:39,866 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 3 case distinctions, treesize of input 40 treesize of output 16 [2023-12-02 17:07:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:07:40,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:07:40,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:07:40,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093225284] [2023-12-02 17:07:40,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093225284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:07:40,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:07:40,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 17:07:40,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431780837] [2023-12-02 17:07:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:07:40,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:07:40,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:07:40,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:07:40,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:07:40,262 INFO L87 Difference]: Start difference. First operand 179 states and 257 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:07:49,414 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 17:07:51,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:07:54,304 WARN L539 Checker$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 17:07:57,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:07:59,318 WARN L539 Checker$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 17:08:01,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:08:03,754 WARN L539 Checker$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 17:08:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:08:18,998 INFO L93 Difference]: Finished difference Result 424 states and 606 transitions. [2023-12-02 17:08:19,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 17:08:19,003 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-02 17:08:19,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:08:19,005 INFO L225 Difference]: With dead ends: 424 [2023-12-02 17:08:19,005 INFO L226 Difference]: Without dead ends: 246 [2023-12-02 17:08:19,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-12-02 17:08:19,006 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 229 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:08:19,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 469 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 938 Invalid, 7 Unknown, 0 Unchecked, 28.7s Time] [2023-12-02 17:08:19,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-02 17:08:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 179. [2023-12-02 17:08:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 162 states have (on average 1.4012345679012346) internal successors, (227), 162 states have internal predecessors, (227), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:08:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 257 transitions. [2023-12-02 17:08:19,031 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 257 transitions. Word has length 117 [2023-12-02 17:08:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:08:19,031 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 257 transitions. [2023-12-02 17:08:19,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:08:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 257 transitions. [2023-12-02 17:08:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 17:08:19,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:08:19,033 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:19,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:08:19,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:08:19,234 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:08:19,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:08:19,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1935580727, now seen corresponding path program 1 times [2023-12-02 17:08:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:08:19,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979373971] [2023-12-02 17:08:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:08:19,235 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 17:08:19,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:08:19,236 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:08:19,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 17:08:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:08:19,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:08:19,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:08:23,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-02 17:08:27,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:08:27,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 20 [2023-12-02 17:08:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:08:27,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:08:27,785 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:08:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979373971] [2023-12-02 17:08:27,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979373971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:08:27,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:08:27,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 17:08:27,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446342892] [2023-12-02 17:08:27,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:08:27,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:08:27,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:08:27,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:08:27,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=85, Unknown=1, NotChecked=0, Total=110 [2023-12-02 17:08:27,787 INFO L87 Difference]: Start difference. First operand 179 states and 257 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:08:36,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:08:38,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:08:40,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:08:42,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:08:45,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:08:47,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:08:49,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:08:51,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:08:54,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:08:57,127 WARN L539 Checker$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 17:08:59,131 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 [0] [2023-12-02 17:09:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:13,154 INFO L93 Difference]: Finished difference Result 424 states and 606 transitions. [2023-12-02 17:09:13,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:09:13,159 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 118 [2023-12-02 17:09:13,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:13,160 INFO L225 Difference]: With dead ends: 424 [2023-12-02 17:09:13,160 INFO L226 Difference]: Without dead ends: 246 [2023-12-02 17:09:13,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2023-12-02 17:09:13,161 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 272 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:13,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 414 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 11 Unknown, 0 Unchecked, 36.7s Time] [2023-12-02 17:09:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-02 17:09:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 179. [2023-12-02 17:09:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 162 states have (on average 1.4012345679012346) internal successors, (227), 162 states have internal predecessors, (227), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:09:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 257 transitions. [2023-12-02 17:09:13,182 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 257 transitions. Word has length 118 [2023-12-02 17:09:13,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:13,183 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 257 transitions. [2023-12-02 17:09:13,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:09:13,183 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 257 transitions. [2023-12-02 17:09:13,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 17:09:13,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:13,184 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:09:13,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 17:09:13,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:09:13,385 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:09:13,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:13,385 INFO L85 PathProgramCache]: Analyzing trace with hash 924463477, now seen corresponding path program 1 times [2023-12-02 17:09:13,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:09:13,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516367221] [2023-12-02 17:09:13,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:13,386 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 17:09:13,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:09:13,386 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:09:13,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-02 17:09:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:13,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 17:09:13,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:13,855 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 24 treesize of output 12 [2023-12-02 17:09:14,406 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 24 treesize of output 12 [2023-12-02 17:09:14,990 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 24 treesize of output 12 [2023-12-02 17:09:15,582 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 24 treesize of output 12 [2023-12-02 17:09:16,151 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 21 treesize of output 20 [2023-12-02 17:09:16,864 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 32 treesize of output 23 [2023-12-02 17:09:17,473 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 31 [2023-12-02 17:09:18,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2023-12-02 17:09:18,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2023-12-02 17:09:19,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:09:19,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 58 [2023-12-02 17:09:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 224 proven. 56 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-02 17:09:19,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:20,086 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:09:20,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516367221] [2023-12-02 17:09:20,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516367221] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:09:20,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1299203947] [2023-12-02 17:09:20,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:20,087 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:09:20,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:09:20,088 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:09:20,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 17:09:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:21,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 17:09:21,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:21,338 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 24 treesize of output 12 [2023-12-02 17:09:21,743 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 24 treesize of output 12 [2023-12-02 17:09:22,175 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 24 treesize of output 12 [2023-12-02 17:09:22,571 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 24 treesize of output 12 [2023-12-02 17:09:23,026 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 21 treesize of output 20 [2023-12-02 17:09:23,617 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 31 [2023-12-02 17:09:24,279 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 34 [2023-12-02 17:09:24,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 50 [2023-12-02 17:09:27,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 65 [2023-12-02 17:09:28,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 40 [2023-12-02 17:09:28,278 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 224 proven. 56 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-02 17:09:28,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:29,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1299203947] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:09:29,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901835780] [2023-12-02 17:09:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:29,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:29,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:29,005 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:29,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 17:09:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:29,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 17:09:29,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:29,336 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 24 treesize of output 12 [2023-12-02 17:09:29,750 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 24 treesize of output 12 [2023-12-02 17:09:30,152 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 24 treesize of output 12 [2023-12-02 17:09:30,513 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 24 treesize of output 12 [2023-12-02 17:09:30,909 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 21 treesize of output 20 [2023-12-02 17:09:31,510 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 31 [2023-12-02 17:09:32,147 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 37 treesize of output 42 [2023-12-02 17:09:32,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2023-12-02 17:09:35,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 76 [2023-12-02 17:09:36,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:09:36,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 87 treesize of output 43 [2023-12-02 17:09:36,381 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 240 proven. 56 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-02 17:09:36,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:37,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901835780] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:09:37,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:09:37,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 22 [2023-12-02 17:09:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759823558] [2023-12-02 17:09:37,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:09:37,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-02 17:09:37,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:09:37,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-02 17:09:37,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=638, Unknown=2, NotChecked=0, Total=756 [2023-12-02 17:09:37,174 INFO L87 Difference]: Start difference. First operand 179 states and 257 transitions. Second operand has 23 states, 23 states have (on average 6.130434782608695) internal successors, (141), 22 states have internal predecessors, (141), 13 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (45), 13 states have call predecessors, (45), 13 states have call successors, (45) [2023-12-02 17:09:49,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:49,817 INFO L93 Difference]: Finished difference Result 554 states and 791 transitions. [2023-12-02 17:09:49,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:09:49,818 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.130434782608695) internal successors, (141), 22 states have internal predecessors, (141), 13 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (45), 13 states have call predecessors, (45), 13 states have call successors, (45) Word has length 118 [2023-12-02 17:09:49,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:49,821 INFO L225 Difference]: With dead ends: 554 [2023-12-02 17:09:49,821 INFO L226 Difference]: Without dead ends: 376 [2023-12-02 17:09:49,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 424 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=213, Invalid=777, Unknown=2, NotChecked=0, Total=992 [2023-12-02 17:09:49,823 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 991 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 376 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:49,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 774 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 1382 Invalid, 24 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 17:09:49,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-12-02 17:09:49,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 369. [2023-12-02 17:09:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 327 states have (on average 1.3761467889908257) internal successors, (450), 328 states have internal predecessors, (450), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-02 17:09:49,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 526 transitions. [2023-12-02 17:09:49,905 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 526 transitions. Word has length 118 [2023-12-02 17:09:49,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:49,906 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 526 transitions. [2023-12-02 17:09:49,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.130434782608695) internal successors, (141), 22 states have internal predecessors, (141), 13 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (45), 13 states have call predecessors, (45), 13 states have call successors, (45) [2023-12-02 17:09:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 526 transitions. [2023-12-02 17:09:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 17:09:49,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:49,907 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:09:49,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 17:09:50,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-02 17:09:50,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 17:09:50,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:09:50,508 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:09:50,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:50,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1376097715, now seen corresponding path program 1 times [2023-12-02 17:09:50,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:09:50,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469501902] [2023-12-02 17:09:50,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:50,509 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 17:09:50,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:09:50,510 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:09:50,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:09:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:50,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:09:50,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:55,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-02 17:09:58,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:09:58,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 20 [2023-12-02 17:09:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:09:59,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:59,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:09:59,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469501902] [2023-12-02 17:09:59,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469501902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:59,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:59,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 17:09:59,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600077761] [2023-12-02 17:09:59,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:59,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:09:59,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:09:59,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:09:59,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=85, Unknown=1, NotChecked=0, Total=110 [2023-12-02 17:09:59,160 INFO L87 Difference]: Start difference. First operand 369 states and 526 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:10:08,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:10:10,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:10:13,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:10:15,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:10:17,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:10:19,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:10:22,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:10:24,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:10:27,047 WARN L539 Checker$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 17:10:36,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:10:38,965 WARN L539 Checker$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 17:10:43,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:43,915 INFO L93 Difference]: Finished difference Result 871 states and 1242 transitions. [2023-12-02 17:10:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:10:43,920 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 118 [2023-12-02 17:10:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:43,925 INFO L225 Difference]: With dead ends: 871 [2023-12-02 17:10:43,925 INFO L226 Difference]: Without dead ends: 503 [2023-12-02 17:10:43,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2023-12-02 17:10:43,927 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 269 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:43,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 418 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 799 Invalid, 11 Unknown, 0 Unchecked, 37.7s Time] [2023-12-02 17:10:43,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-12-02 17:10:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 361. [2023-12-02 17:10:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 319 states have (on average 1.3761755485893417) internal successors, (439), 320 states have internal predecessors, (439), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-02 17:10:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 515 transitions. [2023-12-02 17:10:44,009 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 515 transitions. Word has length 118 [2023-12-02 17:10:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:44,010 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 515 transitions. [2023-12-02 17:10:44,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:10:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 515 transitions. [2023-12-02 17:10:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 17:10:44,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:44,012 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:10:44,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:10:44,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:10:44,217 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:10:44,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:44,217 INFO L85 PathProgramCache]: Analyzing trace with hash 409145981, now seen corresponding path program 1 times [2023-12-02 17:10:44,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:10:44,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459363243] [2023-12-02 17:10:44,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:44,218 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 17:10:44,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:10:44,218 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:10:44,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:10:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:44,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 17:10:44,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:48,388 INFO L349 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2023-12-02 17:10:48,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 79 [2023-12-02 17:10:48,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 104 [2023-12-02 17:10:49,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:10:49,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 319 treesize of output 139 [2023-12-02 17:10:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 17:10:49,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:10:52,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:10:52,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459363243] [2023-12-02 17:10:52,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459363243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:10:52,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1915470547] [2023-12-02 17:10:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:52,947 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:10:52,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:10:52,948 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:10:52,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 17:10:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:54,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 17:10:54,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:57,309 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 17:10:58,867 INFO L349 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2023-12-02 17:10:58,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 87 [2023-12-02 17:10:59,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 118 [2023-12-02 17:11:00,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 153 [2023-12-02 17:11:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 17:11:00,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:01,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1915470547] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:11:01,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524332182] [2023-12-02 17:11:01,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:01,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:11:01,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:11:01,457 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:11:01,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 17:11:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:11:01,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 17:11:01,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:07,986 INFO L349 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2023-12-02 17:11:07,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 79 [2023-12-02 17:11:08,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 104 [2023-12-02 17:11:08,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:11:08,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 319 treesize of output 139 [2023-12-02 17:11:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-02 17:11:09,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:09,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524332182] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:11:09,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:11:09,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 13] total 24 [2023-12-02 17:11:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700560407] [2023-12-02 17:11:09,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:11:09,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-02 17:11:09,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:11:09,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-02 17:11:09,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=762, Unknown=1, NotChecked=0, Total=870 [2023-12-02 17:11:09,918 INFO L87 Difference]: Start difference. First operand 361 states and 515 transitions. Second operand has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 5 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2023-12-02 17:11:19,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:11:23,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:11:31,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:11:36,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:11:40,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:11:42,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:11:44,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:11:47,129 WARN L539 Checker$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 17:11:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:11:49,050 INFO L93 Difference]: Finished difference Result 733 states and 1029 transitions. [2023-12-02 17:11:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 17:11:49,053 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 5 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) Word has length 120 [2023-12-02 17:11:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:11:49,056 INFO L225 Difference]: With dead ends: 733 [2023-12-02 17:11:49,056 INFO L226 Difference]: Without dead ends: 731 [2023-12-02 17:11:49,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 406 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=369, Invalid=1886, Unknown=1, NotChecked=0, Total=2256 [2023-12-02 17:11:49,058 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 674 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 2499 mSolverCounterSat, 162 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2499 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:11:49,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 568 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2499 Invalid, 4 Unknown, 0 Unchecked, 35.5s Time] [2023-12-02 17:11:49,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-12-02 17:11:49,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 706. [2023-12-02 17:11:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 621 states have (on average 1.357487922705314) internal successors, (843), 625 states have internal predecessors, (843), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:11:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 995 transitions. [2023-12-02 17:11:49,201 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 995 transitions. Word has length 120 [2023-12-02 17:11:49,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:11:49,201 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 995 transitions. [2023-12-02 17:11:49,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.92) internal successors, (123), 24 states have internal predecessors, (123), 5 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2023-12-02 17:11:49,201 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 995 transitions. [2023-12-02 17:11:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 17:11:49,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:11:49,203 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:11:49,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:11:49,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 17:11:49,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 17:11:49,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:11:49,804 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:11:49,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:11:49,804 INFO L85 PathProgramCache]: Analyzing trace with hash 725321724, now seen corresponding path program 1 times [2023-12-02 17:11:49,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:11:49,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815304669] [2023-12-02 17:11:49,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:49,805 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 17:11:49,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:11:49,806 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:11:49,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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)] Waiting until timeout for monitored process [2023-12-02 17:11:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:11:50,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 17:11:50,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:53,064 INFO L349 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2023-12-02 17:11:53,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 42 [2023-12-02 17:11:53,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 46 [2023-12-02 17:11:55,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:11:55,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 23 [2023-12-02 17:11:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:11:55,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:11:55,780 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:11:55,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815304669] [2023-12-02 17:11:55,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815304669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:11:55,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:11:55,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 17:11:55,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723464598] [2023-12-02 17:11:55,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:11:55,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 17:11:55,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:11:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 17:11:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=53, Unknown=1, NotChecked=0, Total=72 [2023-12-02 17:11:55,782 INFO L87 Difference]: Start difference. First operand 706 states and 995 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:11:59,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:05,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:07,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:09,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:11,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:13,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:15,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:17,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:19,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:21,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:23,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:12:23,664 INFO L93 Difference]: Finished difference Result 1713 states and 2411 transitions. [2023-12-02 17:12:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:12:23,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2023-12-02 17:12:23,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:12:23,670 INFO L225 Difference]: With dead ends: 1713 [2023-12-02 17:12:23,670 INFO L226 Difference]: Without dead ends: 1008 [2023-12-02 17:12:23,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=51, Invalid=128, Unknown=3, NotChecked=0, Total=182 [2023-12-02 17:12:23,672 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 353 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 10 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:12:23,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 310 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 540 Invalid, 13 Unknown, 0 Unchecked, 23.3s Time] [2023-12-02 17:12:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2023-12-02 17:12:23,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 782. [2023-12-02 17:12:23,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 697 states have (on average 1.3500717360114778) internal successors, (941), 701 states have internal predecessors, (941), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:12:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1093 transitions. [2023-12-02 17:12:23,840 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1093 transitions. Word has length 120 [2023-12-02 17:12:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:12:23,840 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1093 transitions. [2023-12-02 17:12:23,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:12:23,841 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1093 transitions. [2023-12-02 17:12:23,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 17:12:23,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:12:23,842 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:23,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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)] Ended with exit code 0 [2023-12-02 17:12:24,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:12:24,043 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:12:24,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:12:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash 769455270, now seen corresponding path program 1 times [2023-12-02 17:12:24,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:12:24,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445729160] [2023-12-02 17:12:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:12:24,044 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 17:12:24,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:12:24,045 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:12:24,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:12:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:12:24,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:12:24,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:12:24,268 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:12:24,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:12:24,268 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:12:24,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445729160] [2023-12-02 17:12:24,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445729160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:12:24,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:12:24,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:12:24,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493829582] [2023-12-02 17:12:24,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:12:24,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:12:24,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:12:24,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:12:24,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:12:24,270 INFO L87 Difference]: Start difference. First operand 782 states and 1093 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:12:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:12:24,432 INFO L93 Difference]: Finished difference Result 1567 states and 2193 transitions. [2023-12-02 17:12:24,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:12:24,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2023-12-02 17:12:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:12:24,437 INFO L225 Difference]: With dead ends: 1567 [2023-12-02 17:12:24,437 INFO L226 Difference]: Without dead ends: 786 [2023-12-02 17:12:24,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:12:24,439 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:12:24,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:12:24,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-12-02 17:12:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2023-12-02 17:12:24,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 701 states have (on average 1.3480741797432239) internal successors, (945), 705 states have internal predecessors, (945), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:12:24,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1097 transitions. [2023-12-02 17:12:24,643 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1097 transitions. Word has length 120 [2023-12-02 17:12:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:12:24,643 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1097 transitions. [2023-12-02 17:12:24,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:12:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1097 transitions. [2023-12-02 17:12:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 17:12:24,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:12:24,645 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:24,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:12:24,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:12:24,847 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:12:24,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:12:24,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1035983064, now seen corresponding path program 1 times [2023-12-02 17:12:24,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:12:24,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218162274] [2023-12-02 17:12:24,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:12:24,848 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 17:12:24,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:12:24,849 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:12:24,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:12:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:12:25,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 17:12:25,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:12:31,159 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 34 treesize of output 28 [2023-12-02 17:12:32,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2023-12-02 17:12:40,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:12:40,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 24 [2023-12-02 17:12:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:12:40,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:12:40,862 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:12:40,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218162274] [2023-12-02 17:12:40,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218162274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:12:40,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:12:40,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 17:12:40,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384053240] [2023-12-02 17:12:40,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:12:40,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 17:12:40,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:12:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 17:12:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=48, Unknown=3, NotChecked=0, Total=72 [2023-12-02 17:12:40,864 INFO L87 Difference]: Start difference. First operand 786 states and 1097 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:12:46,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:51,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:12:53,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:12:55,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:57,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:12:59,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:01,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:03,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:05,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:07,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:09,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:12,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:14,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:16,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:18,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:20,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:22,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:25,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:27,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:29,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:32,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:34,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:38,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:40,537 WARN L539 Checker$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 17:13:42,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:47,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:49,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:51,501 WARN L539 Checker$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 17:13:53,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:55,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:13:57,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:13:59,960 WARN L539 Checker$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 17:14:02,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:04,290 WARN L539 Checker$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 17:14:06,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:14:08,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:14:14,434 INFO L93 Difference]: Finished difference Result 1890 states and 2660 transitions. [2023-12-02 17:14:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:14:14,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2023-12-02 17:14:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:14:14,446 INFO L225 Difference]: With dead ends: 1890 [2023-12-02 17:14:14,446 INFO L226 Difference]: Without dead ends: 1105 [2023-12-02 17:14:14,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=47, Invalid=104, Unknown=5, NotChecked=0, Total=156 [2023-12-02 17:14:14,448 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 202 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 1 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:14:14,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 347 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 651 Invalid, 36 Unknown, 0 Unchecked, 87.0s Time] [2023-12-02 17:14:14,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2023-12-02 17:14:14,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 874. [2023-12-02 17:14:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 789 states have (on average 1.349809885931559) internal successors, (1065), 793 states have internal predecessors, (1065), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:14:14,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1217 transitions. [2023-12-02 17:14:14,666 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1217 transitions. Word has length 120 [2023-12-02 17:14:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:14:14,666 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1217 transitions. [2023-12-02 17:14:14,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:14:14,667 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1217 transitions. [2023-12-02 17:14:14,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 17:14:14,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:14:14,669 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:14,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:14:14,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:14:14,869 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:14:14,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:14:14,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1845329690, now seen corresponding path program 1 times [2023-12-02 17:14:14,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:14:14,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919458628] [2023-12-02 17:14:14,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:14:14,871 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 17:14:14,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:14:14,872 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:14:14,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:14:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:14:15,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 17:14:15,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:14:18,681 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 28 treesize of output 19 [2023-12-02 17:14:18,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2023-12-02 17:14:23,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:14:23,234 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 3 case distinctions, treesize of input 35 treesize of output 15 [2023-12-02 17:14:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:14:23,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:14:23,280 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:14:23,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919458628] [2023-12-02 17:14:23,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919458628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:14:23,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:14:23,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 17:14:23,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728158126] [2023-12-02 17:14:23,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:14:23,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 17:14:23,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:14:23,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 17:14:23,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=66, Unknown=2, NotChecked=0, Total=90 [2023-12-02 17:14:23,282 INFO L87 Difference]: Start difference. First operand 874 states and 1217 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:14:26,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:28,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:30,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:32,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:34,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:36,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:38,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:40,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:42,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:44,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:46,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:48,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:50,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:53,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:55,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:57,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:14:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:14:59,449 INFO L93 Difference]: Finished difference Result 2286 states and 3193 transitions. [2023-12-02 17:14:59,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:14:59,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2023-12-02 17:14:59,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:14:59,457 INFO L225 Difference]: With dead ends: 2286 [2023-12-02 17:14:59,457 INFO L226 Difference]: Without dead ends: 1413 [2023-12-02 17:14:59,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=51, Invalid=129, Unknown=2, NotChecked=0, Total=182 [2023-12-02 17:14:59,458 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 244 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 11 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:14:59,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 426 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 806 Invalid, 18 Unknown, 0 Unchecked, 35.7s Time] [2023-12-02 17:14:59,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2023-12-02 17:14:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1088. [2023-12-02 17:14:59,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1003 states have (on average 1.348953140578265) internal successors, (1353), 1007 states have internal predecessors, (1353), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:14:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1505 transitions. [2023-12-02 17:14:59,665 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1505 transitions. Word has length 120 [2023-12-02 17:14:59,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:14:59,665 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1505 transitions. [2023-12-02 17:14:59,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:14:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1505 transitions. [2023-12-02 17:14:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 17:14:59,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:14:59,668 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:59,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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)] Ended with exit code 0 [2023-12-02 17:14:59,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:14:59,868 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:14:59,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:14:59,869 INFO L85 PathProgramCache]: Analyzing trace with hash -116291464, now seen corresponding path program 1 times [2023-12-02 17:14:59,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:14:59,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287218077] [2023-12-02 17:14:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:14:59,870 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 17:14:59,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:14:59,871 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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 17:14:59,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15931a77-340b-4032-a218-c828f9ee7754/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)] Waiting until timeout for monitored process