./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2 --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 516e41cc6fd3eaeda77d9f94b26b6793ff0b98fef7bf47af60e7f09fa6995d00 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:26:03,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:26:03,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:26:03,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:26:03,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:26:03,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:26:03,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:26:03,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:26:03,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:26:03,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:26:03,683 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:26:03,683 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:26:03,683 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:26:03,684 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:26:03,684 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:26:03,685 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:26:03,685 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:26:03,686 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:26:03,690 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:26:03,691 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:26:03,691 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:26:03,714 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:26:03,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:26:03,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:26:03,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:26:03,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:26:03,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:26:03,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:26:03,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:26:03,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:26:03,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:26:03,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:26:03,725 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:26:03,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:26:03,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:26:03,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:26:03,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:26:03,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:26:03,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:03,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:26:03,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:26:03,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:26:03,729 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:26:03,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:26:03,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:26:03,730 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:26:03,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:26:03,731 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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516e41cc6fd3eaeda77d9f94b26b6793ff0b98fef7bf47af60e7f09fa6995d00 [2024-11-02 12:26:04,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:26:04,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:26:04,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:26:04,140 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:26:04,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:26:04,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i Unable to find full path for "g++" [2024-11-02 12:26:06,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:26:06,714 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:26:06,716 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i [2024-11-02 12:26:06,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data/e44396f09/3151f880b0044cdbafcdd5c694cb559e/FLAG7f19a7c52 [2024-11-02 12:26:07,041 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data/e44396f09/3151f880b0044cdbafcdd5c694cb559e [2024-11-02 12:26:07,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:26:07,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:26:07,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:07,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:26:07,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:26:07,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f47d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07, skipping insertion in model container [2024-11-02 12:26:07,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:26:07,325 WARN L251 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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i[915,928] [2024-11-02 12:26:07,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:07,405 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:26:07,421 WARN L251 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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i[915,928] [2024-11-02 12:26:07,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:07,508 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:26:07,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07 WrapperNode [2024-11-02 12:26:07,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:07,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:07,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:26:07,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:26:07,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,590 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2024-11-02 12:26:07,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:07,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:26:07,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:26:07,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:26:07,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,606 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,606 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:26:07,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:26:07,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:26:07,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:26:07,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (1/1) ... [2024-11-02 12:26:07,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:07,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:26:07,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:26:07,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:26:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:26:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:26:07,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:26:07,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:26:07,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:26:07,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:26:07,835 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:26:07,840 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:26:08,215 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-02 12:26:08,216 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:26:08,489 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:26:08,490 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:26:08,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:08 BoogieIcfgContainer [2024-11-02 12:26:08,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:26:08,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:26:08,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:26:08,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:26:08,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:26:07" (1/3) ... [2024-11-02 12:26:08,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e56220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:08, skipping insertion in model container [2024-11-02 12:26:08,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:07" (2/3) ... [2024-11-02 12:26:08,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e56220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:08, skipping insertion in model container [2024-11-02 12:26:08,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:08" (3/3) ... [2024-11-02 12:26:08,505 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-49.i [2024-11-02 12:26:08,525 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:26:08,526 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:26:08,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:26:08,606 INFO L333 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, 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;@4cffb494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:26:08,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:26:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 12:26:08,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-02 12:26:08,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:08,633 INFO L215 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:26:08,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:08,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:08,655 INFO L85 PathProgramCache]: Analyzing trace with hash -158348095, now seen corresponding path program 1 times [2024-11-02 12:26:08,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:26:08,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197946718] [2024-11-02 12:26:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:08,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:26:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:26:09,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:26:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:26:09,357 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:26:09,360 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:26:09,361 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:26:09,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:26:09,370 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:26:09,460 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:26:09,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:26:09 BoogieIcfgContainer [2024-11-02 12:26:09,463 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:26:09,464 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:26:09,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:26:09,465 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:26:09,465 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:08" (3/4) ... [2024-11-02 12:26:09,470 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:26:09,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:26:09,473 INFO L158 Benchmark]: Toolchain (without parser) took 2427.18ms. Allocated memory was 136.3MB in the beginning and 203.4MB in the end (delta: 67.1MB). Free memory was 97.2MB in the beginning and 131.3MB in the end (delta: -34.0MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2024-11-02 12:26:09,474 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory was 102.6MB in the beginning and 102.4MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:26:09,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.39ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 81.7MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:26:09,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.94ms. Allocated memory is still 136.3MB. Free memory was 81.7MB in the beginning and 77.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:26:09,476 INFO L158 Benchmark]: Boogie Preprocessor took 39.18ms. Allocated memory is still 136.3MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:26:09,477 INFO L158 Benchmark]: RCFGBuilder took 859.49ms. Allocated memory was 136.3MB in the beginning and 203.4MB in the end (delta: 67.1MB). Free memory was 75.4MB in the beginning and 171.1MB in the end (delta: -95.7MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2024-11-02 12:26:09,479 INFO L158 Benchmark]: TraceAbstraction took 968.62ms. Allocated memory is still 203.4MB. Free memory was 170.1MB in the beginning and 132.3MB in the end (delta: 37.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-02 12:26:09,479 INFO L158 Benchmark]: Witness Printer took 7.72ms. Allocated memory is still 203.4MB. Free memory was 132.3MB in the beginning and 131.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:26:09,484 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory was 102.6MB in the beginning and 102.4MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.39ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 81.7MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.94ms. Allocated memory is still 136.3MB. Free memory was 81.7MB in the beginning and 77.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.18ms. Allocated memory is still 136.3MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 859.49ms. Allocated memory was 136.3MB in the beginning and 203.4MB in the end (delta: 67.1MB). Free memory was 75.4MB in the beginning and 171.1MB in the end (delta: -95.7MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 968.62ms. Allocated memory is still 203.4MB. Free memory was 170.1MB in the beginning and 132.3MB in the end (delta: 37.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 7.72ms. Allocated memory is still 203.4MB. Free memory was 132.3MB in the beginning and 131.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 41, overapproximation of shiftRight at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] float var_1_2 = 1000000000000000.4; [L24] float var_1_3 = 1000.2; [L25] unsigned short int var_1_4 = 256; [L26] unsigned short int var_1_5 = 4; [L27] unsigned short int var_1_6 = 10; [L28] signed short int var_1_8 = 128; [L29] unsigned char var_1_10 = 0; [L30] unsigned char var_1_11 = 0; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 1; [L33] unsigned char var_1_14 = 0; [L34] signed char var_1_15 = -1; [L35] signed char var_1_16 = 0; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L64] var_1_3 = __VERIFIER_nondet_float() [L65] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L66] var_1_4 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128] [L68] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=4, var_1_6=10, var_1_8=128] [L69] var_1_5 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_6=10, var_1_8=128] [L71] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=10, var_1_8=128] [L72] var_1_6 = __VERIFIER_nondet_ushort() [L73] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_8=128] [L74] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L75] var_1_11 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L77] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L78] var_1_12 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L80] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L81] var_1_14 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L83] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L84] var_1_16 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=1, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=1, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L86] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=1, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=1, var_1_1=4, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=128] [L99] RET updateVariables() [L100] CALL step() [L39] var_1_13 = var_1_14 [L40] var_1_15 = var_1_16 [L41] COND TRUE var_1_2 >= 64.5f [L42] COND FALSE !(var_1_2 >= var_1_3) [L45] COND TRUE \read(var_1_13) [L46] var_1_1 = var_1_5 [L54] var_1_8 = ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))) [L55] EXPR 50 >> var_1_4 [L55] COND FALSE !((50 >> var_1_4) <= var_1_8) [L58] var_1_10 = (! var_1_11) [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11)))) [L91-L92] return (((((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11))))) && (var_1_13 == ((unsigned char) var_1_14))) && (var_1_15 == ((signed char) var_1_16)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=1, var_1_16=1, var_1_1=131069, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=1] [L19] reach_error() VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=1, var_1_16=1, var_1_1=131069, var_1_4=65534, var_1_5=131069, var_1_6=131069, var_1_8=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 16, 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=34occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 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 [2024-11-02 12:26:09,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2 --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 516e41cc6fd3eaeda77d9f94b26b6793ff0b98fef7bf47af60e7f09fa6995d00 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:26:12,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:26:12,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:26:12,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:26:12,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:26:12,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:26:12,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:26:12,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:26:12,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:26:12,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:26:12,465 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:26:12,465 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:26:12,466 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:26:12,466 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:26:12,466 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:26:12,467 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:26:12,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:26:12,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:26:12,472 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:26:12,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:26:12,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:26:12,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:26:12,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:26:12,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:26:12,477 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:26:12,477 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:26:12,477 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:26:12,478 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:26:12,478 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:26:12,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:26:12,478 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:26:12,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:26:12,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:26:12,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:26:12,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:26:12,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:12,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:26:12,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:26:12,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:26:12,481 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:26:12,482 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:26:12,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:26:12,484 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:26:12,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:26:12,484 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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516e41cc6fd3eaeda77d9f94b26b6793ff0b98fef7bf47af60e7f09fa6995d00 [2024-11-02 12:26:12,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:26:12,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:26:12,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:26:12,948 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:26:12,949 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:26:12,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i Unable to find full path for "g++" [2024-11-02 12:26:15,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:26:15,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:26:15,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i [2024-11-02 12:26:15,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data/8e6549663/ffce4cb587814bd29daee223155b8754/FLAG100d2aa69 [2024-11-02 12:26:15,471 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/data/8e6549663/ffce4cb587814bd29daee223155b8754 [2024-11-02 12:26:15,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:26:15,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:26:15,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:15,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:26:15,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:26:15,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:15,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c78456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15, skipping insertion in model container [2024-11-02 12:26:15,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:15,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:26:15,770 WARN L251 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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i[915,928] [2024-11-02 12:26:15,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:15,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:26:15,881 WARN L251 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_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-49.i[915,928] [2024-11-02 12:26:15,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:26:15,943 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:26:15,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15 WrapperNode [2024-11-02 12:26:15,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:26:15,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:15,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:26:15,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:26:15,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:15,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,001 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-02 12:26:16,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:26:16,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:26:16,006 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:26:16,006 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:26:16,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:26:16,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:26:16,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:26:16,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:26:16,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (1/1) ... [2024-11-02 12:26:16,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:26:16,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:26:16,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:26:16,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:26:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:26:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:26:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:26:16,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:26:16,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:26:16,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:26:16,223 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:26:16,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:26:16,579 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 12:26:16,580 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:26:16,597 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:26:16,598 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:26:16,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:16 BoogieIcfgContainer [2024-11-02 12:26:16,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:26:16,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:26:16,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:26:16,608 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:26:16,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:26:15" (1/3) ... [2024-11-02 12:26:16,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ab048e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:16, skipping insertion in model container [2024-11-02 12:26:16,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:26:15" (2/3) ... [2024-11-02 12:26:16,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ab048e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:26:16, skipping insertion in model container [2024-11-02 12:26:16,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:26:16" (3/3) ... [2024-11-02 12:26:16,612 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-49.i [2024-11-02 12:26:16,632 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:26:16,632 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:26:16,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:26:16,724 INFO L333 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, 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;@3473a79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:26:16,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:26:16,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 12:26:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-02 12:26:16,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:16,747 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:26:16,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:16,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:16,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1089611681, now seen corresponding path program 1 times [2024-11-02 12:26:16,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:26:16,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612314355] [2024-11-02 12:26:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:16,774 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 [2024-11-02 12:26:16,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:26:16,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:26:16,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:26:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:17,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:26:17,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:26:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-02 12:26:17,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:26:17,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:26:17,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612314355] [2024-11-02 12:26:17,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612314355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:26:17,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:26:17,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:26:17,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549111946] [2024-11-02 12:26:17,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:26:17,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:26:17,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:26:17,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:26:17,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:26:17,227 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-02 12:26:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:26:17,301 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2024-11-02 12:26:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:26:17,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2024-11-02 12:26:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:26:17,324 INFO L225 Difference]: With dead ends: 91 [2024-11-02 12:26:17,324 INFO L226 Difference]: Without dead ends: 45 [2024-11-02 12:26:17,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:26:17,370 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:26:17,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:26:17,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-02 12:26:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-02 12:26:17,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-02 12:26:17,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2024-11-02 12:26:17,464 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 101 [2024-11-02 12:26:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:26:17,466 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2024-11-02 12:26:17,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-02 12:26:17,468 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-11-02 12:26:17,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-02 12:26:17,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:26:17,474 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:26:17,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-02 12:26:17,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:26:17,676 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:26:17,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:26:17,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1385515555, now seen corresponding path program 1 times [2024-11-02 12:26:17,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:26:17,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971931328] [2024-11-02 12:26:17,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:26:17,681 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 [2024-11-02 12:26:17,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:26:17,684 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat -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) [2024-11-02 12:26:17,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bf65cfa-ac42-4276-95ba-f7ba41a1d71b/bin/utaipan-verify-DbMuA5NWw2/mathsat -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 [2024-11-02 12:26:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:26:17,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 12:26:17,999 INFO L278 TraceCheckSpWp]: Computing forward predicates...