./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:40:35,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:40:35,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:40:35,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:40:35,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:40:35,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:40:35,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:40:35,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:40:35,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:40:35,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:40:35,719 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:40:35,720 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:40:35,721 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:40:35,723 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:40:35,724 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:40:35,724 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:40:35,725 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:40:35,725 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:40:35,726 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:40:35,726 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:40:35,728 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:40:35,729 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:40:35,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:40:35,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:40:35,731 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:40:35,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:40:35,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:40:35,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:40:35,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:40:35,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:40:35,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:40:35,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:40:35,742 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:40:35,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:40:35,743 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:40:35,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:40:35,743 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:40:35,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:40:35,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:35,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:40:35,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:40:35,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:40:35,747 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:40:35,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:40:35,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:40:35,747 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:40:35,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:40:35,748 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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 [2024-11-02 12:40:36,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:40:36,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:40:36,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:40:36,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:40:36,080 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:40:36,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i Unable to find full path for "g++" [2024-11-02 12:40:38,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:40:38,369 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:40:38,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i [2024-11-02 12:40:38,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data/d98cd5184/e0b5108f4e354f3497158b54bc1d95d3/FLAG350104022 [2024-11-02 12:40:38,738 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data/d98cd5184/e0b5108f4e354f3497158b54bc1d95d3 [2024-11-02 12:40:38,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:40:38,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:40:38,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:38,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:40:38,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:40:38,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:38" (1/1) ... [2024-11-02 12:40:38,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72799771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:38, skipping insertion in model container [2024-11-02 12:40:38,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:38" (1/1) ... [2024-11-02 12:40:38,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:40:39,017 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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i[914,927] [2024-11-02 12:40:39,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:39,090 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:40:39,101 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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i[914,927] [2024-11-02 12:40:39,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:39,139 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:40:39,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39 WrapperNode [2024-11-02 12:40:39,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:39,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:39,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:40:39,142 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:40:39,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,195 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-02 12:40:39,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:39,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:40:39,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:40:39,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:40:39,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:40:39,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:40:39,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:40:39,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:40:39,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (1/1) ... [2024-11-02 12:40:39,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:39,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:39,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:40:39,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:40:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:40:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:40:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:40:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:40:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:40:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:40:39,381 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:40:39,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:40:39,653 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 12:40:39,653 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:40:39,843 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:40:39,844 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:40:39,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:39 BoogieIcfgContainer [2024-11-02 12:40:39,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:40:39,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:40:39,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:40:39,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:40:39,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:40:38" (1/3) ... [2024-11-02 12:40:39,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e9f463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:39, skipping insertion in model container [2024-11-02 12:40:39,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:39" (2/3) ... [2024-11-02 12:40:39,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e9f463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:39, skipping insertion in model container [2024-11-02 12:40:39,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:39" (3/3) ... [2024-11-02 12:40:39,853 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-9.i [2024-11-02 12:40:39,868 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:40:39,869 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:40:39,920 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:40:39,926 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;@5ad63d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:40:39,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:40:39,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 12:40:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 12:40:39,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:39,937 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:40:39,937 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:39,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:39,942 INFO L85 PathProgramCache]: Analyzing trace with hash -171887076, now seen corresponding path program 1 times [2024-11-02 12:40:39,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:40:39,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934409981] [2024-11-02 12:40:39,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:39,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:40:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:40:40,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463611427] [2024-11-02 12:40:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:40,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:40:40,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:40,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:40:40,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:40:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:40:40,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:40:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:40:40,441 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:40:40,444 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:40:40,445 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:40:40,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:40:40,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-02 12:40:40,653 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:40:40,691 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:40:40,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:40:40 BoogieIcfgContainer [2024-11-02 12:40:40,695 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:40:40,696 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:40:40,696 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:40:40,696 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:40:40,697 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:39" (3/4) ... [2024-11-02 12:40:40,700 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:40:40,701 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:40:40,703 INFO L158 Benchmark]: Toolchain (without parser) took 1957.27ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 103.4MB in the beginning and 146.5MB in the end (delta: -43.1MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-11-02 12:40:40,703 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 144.7MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:40:40,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.04ms. Allocated memory is still 144.7MB. Free memory was 103.4MB in the beginning and 89.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:40:40,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.88ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 87.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:40:40,705 INFO L158 Benchmark]: Boogie Preprocessor took 35.47ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:40:40,706 INFO L158 Benchmark]: RCFGBuilder took 611.68ms. Allocated memory is still 144.7MB. Free memory was 85.7MB in the beginning and 59.4MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-02 12:40:40,707 INFO L158 Benchmark]: TraceAbstraction took 848.59ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 58.4MB in the beginning and 146.5MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:40:40,708 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 190.8MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:40:40,715 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 144.7MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.04ms. Allocated memory is still 144.7MB. Free memory was 103.4MB in the beginning and 89.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.88ms. Allocated memory is still 144.7MB. Free memory was 89.8MB in the beginning and 87.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.47ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 611.68ms. Allocated memory is still 144.7MB. Free memory was 85.7MB in the beginning and 59.4MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 848.59ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 58.4MB in the beginning and 146.5MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.66ms. Allocated memory is still 190.8MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of shiftLeft at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L23] unsigned char var_1_3 = 4; [L24] unsigned char var_1_7 = 0; [L25] signed short int var_1_8 = 100; [L26] unsigned char var_1_9 = 32; [L27] double var_1_10 = 9.2; [L28] double var_1_11 = 0.975; [L29] signed short int var_1_12 = 1; [L30] signed short int last_1_var_1_8 = 100; [L31] double last_1_var_1_10 = 9.2; [L79] isInitial = 1 [L80] FCALL initially() [L81] COND TRUE 1 [L82] CALL updateLastVariables() [L71] last_1_var_1_8 = var_1_8 [L72] last_1_var_1_10 = var_1_10 [L82] RET updateLastVariables() [L83] CALL updateVariables() [L61] var_1_3 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L63] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=0, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=0, var_1_7=0, var_1_8=100, var_1_9=32] [L64] var_1_7 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=0, var_1_8=100, var_1_9=32] [L66] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L67] var_1_11 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=46/5, var_1_12=1, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L83] RET updateVariables() [L84] CALL step() [L35] COND FALSE !(last_1_var_1_8 <= 16) [L38] COND FALSE !(((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) [L45] var_1_1 = var_1_3 [L48] var_1_9 = 64 [L49] var_1_10 = var_1_11 [L50] EXPR 10 << var_1_9 [L50] COND FALSE !((10 << var_1_9) < (var_1_3 * var_1_1)) [L53] unsigned char stepLocal_0 = var_1_10 > var_1_10; [L54] COND TRUE ((var_1_1 + var_1_9) < 10) || stepLocal_0 [L55] var_1_12 = ((((var_1_8) > (var_1_1)) ? (var_1_8) : (var_1_1))) [L84] RET step() [L85] CALL, EXPR property() [L75] EXPR ((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1) [L75] EXPR 10 << var_1_9 [L75] EXPR ((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1) [L75-L76] return (((((last_1_var_1_8 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((last_1_var_1_10) > (last_1_var_1_10)) ? (last_1_var_1_10) : (last_1_var_1_10))) < last_1_var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_9) < (var_1_3 * var_1_1)) ? (var_1_8 == ((signed short int) (var_1_9 + var_1_1))) : 1)) && (var_1_9 == ((unsigned char) 64))) && (var_1_10 == ((double) var_1_11))) && ((((var_1_1 + var_1_9) < 10) || (var_1_10 > var_1_10)) ? (var_1_12 == ((signed short int) ((((var_1_8) > (var_1_1)) ? (var_1_8) : (var_1_1))))) : (var_1_12 == ((signed short int) var_1_8))) ; [L85] RET, EXPR property() [L85] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=100, var_1_1=0, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=64] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_8=100, var_1_10=2, var_1_11=2, var_1_12=100, var_1_1=0, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 5, 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=17occurred 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 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 12:40:40,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:40:43,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:40:43,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:40:43,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:40:43,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:40:43,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:40:43,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:40:43,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:40:43,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:40:43,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:40:43,459 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:40:43,459 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:40:43,459 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:40:43,460 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:40:43,460 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:40:43,460 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:40:43,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:40:43,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:40:43,462 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:40:43,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:40:43,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:40:43,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:40:43,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:40:43,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:40:43,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:40:43,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:40:43,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:40:43,465 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:40:43,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:40:43,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:40:43,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:40:43,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:40:43,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:40:43,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:40:43,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:40:43,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:43,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:40:43,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:40:43,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:40:43,469 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:40:43,469 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:40:43,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:40:43,470 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:40:43,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:40:43,470 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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2af4ef02d2ea167c3c28149dc3ff530f0194e8e0dcdfa97ac5fed6a48df73da2 [2024-11-02 12:40:43,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:40:43,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:40:43,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:40:43,932 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:40:43,933 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:40:43,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i Unable to find full path for "g++" [2024-11-02 12:40:46,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:40:46,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:40:46,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i [2024-11-02 12:40:46,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data/c0f30a5c0/dde466a4456e49f6ba2a18aaeb97a52d/FLAG797a0fd80 [2024-11-02 12:40:46,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/data/c0f30a5c0/dde466a4456e49f6ba2a18aaeb97a52d [2024-11-02 12:40:46,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:40:46,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:40:46,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:46,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:40:46,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:40:46,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:46" (1/1) ... [2024-11-02 12:40:46,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5beca80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:46, skipping insertion in model container [2024-11-02 12:40:46,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:46" (1/1) ... [2024-11-02 12:40:46,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:40:46,979 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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i[914,927] [2024-11-02 12:40:47,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:47,091 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:40:47,106 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_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-9.i[914,927] [2024-11-02 12:40:47,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:47,167 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:40:47,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47 WrapperNode [2024-11-02 12:40:47,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:47,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:47,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:40:47,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:40:47,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,232 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-02 12:40:47,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:47,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:40:47,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:40:47,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:40:47,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:40:47,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:40:47,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:40:47,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:40:47,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (1/1) ... [2024-11-02 12:40:47,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:47,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:40:47,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:40:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:40:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:40:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:40:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:40:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:40:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:40:47,477 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:40:47,482 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:40:47,751 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-02 12:40:47,752 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:40:47,768 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:40:47,769 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:40:47,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:47 BoogieIcfgContainer [2024-11-02 12:40:47,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:40:47,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:40:47,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:40:47,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:40:47,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:40:46" (1/3) ... [2024-11-02 12:40:47,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c442429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:47, skipping insertion in model container [2024-11-02 12:40:47,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:47" (2/3) ... [2024-11-02 12:40:47,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c442429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:40:47, skipping insertion in model container [2024-11-02 12:40:47,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:40:47" (3/3) ... [2024-11-02 12:40:47,781 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-9.i [2024-11-02 12:40:47,803 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:40:47,803 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:40:47,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:40:47,893 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;@3dced0ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:40:47,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:40:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 12:40:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-02 12:40:47,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:47,915 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 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 12:40:47,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:47,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash 471993809, now seen corresponding path program 1 times [2024-11-02 12:40:47,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:47,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276596426] [2024-11-02 12:40:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:47,956 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 12:40:47,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:47,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:47,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:48,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:40:48,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-02 12:40:48,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:48,176 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:48,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276596426] [2024-11-02 12:40:48,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276596426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:48,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:48,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:40:48,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960148277] [2024-11-02 12:40:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:48,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:40:48,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:48,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:40:48,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:40:48,217 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-02 12:40:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:48,241 INFO L93 Difference]: Finished difference Result 60 states and 89 transitions. [2024-11-02 12:40:48,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:40:48,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-02 12:40:48,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:48,251 INFO L225 Difference]: With dead ends: 60 [2024-11-02 12:40:48,251 INFO L226 Difference]: Without dead ends: 29 [2024-11-02 12:40:48,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 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 12:40:48,259 INFO L432 NwaCegarLoop]: 36 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, 36 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 12:40:48,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:40:48,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-02 12:40:48,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-02 12:40:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 12:40:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-02 12:40:48,310 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 42 [2024-11-02 12:40:48,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:48,312 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-02 12:40:48,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-02 12:40:48,313 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-02 12:40:48,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-02 12:40:48,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:48,315 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 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 12:40:48,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:48,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:48,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:48,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:48,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1535824595, now seen corresponding path program 1 times [2024-11-02 12:40:48,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:48,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517711620] [2024-11-02 12:40:48,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:48,519 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 12:40:48,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:48,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:48,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:48,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:40:48,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-02 12:40:49,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:49,006 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:49,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517711620] [2024-11-02 12:40:49,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517711620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:49,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:49,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:40:49,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570178605] [2024-11-02 12:40:49,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:49,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:40:49,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:49,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:40:49,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:40:49,011 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-02 12:40:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:49,163 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2024-11-02 12:40:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:40:49,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-02 12:40:49,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:49,166 INFO L225 Difference]: With dead ends: 90 [2024-11-02 12:40:49,166 INFO L226 Difference]: Without dead ends: 64 [2024-11-02 12:40:49,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:40:49,169 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 37 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:49,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 98 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:40:49,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-02 12:40:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2024-11-02 12:40:49,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:40:49,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2024-11-02 12:40:49,196 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 42 [2024-11-02 12:40:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:49,197 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2024-11-02 12:40:49,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-02 12:40:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2024-11-02 12:40:49,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-02 12:40:49,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:49,201 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 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 12:40:49,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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)] Ended with exit code 0 [2024-11-02 12:40:49,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:49,411 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:49,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:49,411 INFO L85 PathProgramCache]: Analyzing trace with hash -985318329, now seen corresponding path program 1 times [2024-11-02 12:40:49,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:49,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916988264] [2024-11-02 12:40:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:49,413 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 12:40:49,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:49,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:49,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 (4)] Waiting until timeout for monitored process [2024-11-02 12:40:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:49,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:40:49,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:40:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-02 12:40:49,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:40:49,732 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:40:49,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916988264] [2024-11-02 12:40:49,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916988264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:40:49,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:40:49,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:40:49,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684703280] [2024-11-02 12:40:49,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:40:49,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:40:49,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:40:49,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:40:49,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:40:49,739 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-02 12:40:49,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:40:49,901 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2024-11-02 12:40:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:40:49,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-11-02 12:40:49,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:40:49,905 INFO L225 Difference]: With dead ends: 120 [2024-11-02 12:40:49,905 INFO L226 Difference]: Without dead ends: 70 [2024-11-02 12:40:49,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:40:49,913 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 29 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:40:49,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 110 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:40:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-02 12:40:49,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 53. [2024-11-02 12:40:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:40:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2024-11-02 12:40:49,939 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 43 [2024-11-02 12:40:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:40:49,940 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2024-11-02 12:40:49,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-02 12:40:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2024-11-02 12:40:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-02 12:40:49,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:40:49,941 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 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 12:40:49,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 (4)] Ended with exit code 0 [2024-11-02 12:40:50,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:50,148 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:40:50,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:40:50,149 INFO L85 PathProgramCache]: Analyzing trace with hash -983471287, now seen corresponding path program 1 times [2024-11-02 12:40:50,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:40:50,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143545780] [2024-11-02 12:40:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:40:50,151 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 12:40:50,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:40:50,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:40:50,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 (5)] Waiting until timeout for monitored process [2024-11-02 12:40:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:40:50,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 12:40:50,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:41:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-02 12:41:00,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:41:00,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:41:00,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143545780] [2024-11-02 12:41:00,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143545780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:41:00,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:41:00,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-02 12:41:00,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006821211] [2024-11-02 12:41:00,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:41:00,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 12:41:00,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:41:00,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 12:41:00,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:41:00,837 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-02 12:41:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:41:02,530 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2024-11-02 12:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-02 12:41:02,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-11-02 12:41:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:41:02,536 INFO L225 Difference]: With dead ends: 77 [2024-11-02 12:41:02,537 INFO L226 Difference]: Without dead ends: 75 [2024-11-02 12:41:02,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-02 12:41:02,538 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 53 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-02 12:41:02,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 113 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-02 12:41:02,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-02 12:41:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2024-11-02 12:41:02,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 51 states have internal predecessors, (56), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:41:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2024-11-02 12:41:02,552 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 43 [2024-11-02 12:41:02,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:41:02,553 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2024-11-02 12:41:02,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-02 12:41:02,553 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2024-11-02 12:41:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-02 12:41:02,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:41:02,554 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 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 12:41:02,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 (5)] Ended with exit code 0 [2024-11-02 12:41:02,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:41:02,755 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:41:02,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:41:02,756 INFO L85 PathProgramCache]: Analyzing trace with hash 791536075, now seen corresponding path program 1 times [2024-11-02 12:41:02,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:41:02,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962356998] [2024-11-02 12:41:02,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:41:02,757 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 12:41:02,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:41:02,758 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 12:41:02,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2e6ff9-8f74-4987-82ea-2031a6319eaa/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 (6)] Waiting until timeout for monitored process [2024-11-02 12:41:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:41:02,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 12:41:02,857 INFO L278 TraceCheckSpWp]: Computing forward predicates...