./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:02:03,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:02:03,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 17:02:03,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:02:03,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:02:03,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:02:03,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:02:03,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:02:03,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:02:03,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:02:03,476 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:02:03,477 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:02:03,477 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:02:03,478 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:02:03,478 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:02:03,479 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:02:03,479 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:02:03,480 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:02:03,480 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:02:03,481 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:02:03,481 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:02:03,482 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:02:03,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:02:03,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:02:03,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:02:03,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:02:03,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:02:03,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:02:03,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:02:03,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:02:03,499 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:02:03,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:02:03,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:02:03,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:02:03,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:02:03,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:02:03,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:02:03,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:02:03,501 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:02:03,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:02:03,501 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:02:03,502 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:02:03,502 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:02:03,502 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:02:03,502 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_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b [2023-12-02 17:02:03,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:02:03,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:02:03,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:02:03,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:02:03,755 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:02:03,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c [2023-12-02 17:02:06,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:02:06,804 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:02:06,805 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c [2023-12-02 17:02:06,825 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data/8e641f6f7/4934487a72b84780a7cc3b6f261de6cd/FLAGaf4b80bcf [2023-12-02 17:02:07,036 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data/8e641f6f7/4934487a72b84780a7cc3b6f261de6cd [2023-12-02 17:02:07,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:02:07,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:02:07,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:02:07,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:02:07,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:02:07,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:02:07" (1/1) ... [2023-12-02 17:02:07,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b08a350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:07, skipping insertion in model container [2023-12-02 17:02:07,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:02:07" (1/1) ... [2023-12-02 17:02:07,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:02:07,344 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2023-12-02 17:02:07,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:02:07,754 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:02:07,766 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2023-12-02 17:02:08,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:02:08,076 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:02:08,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08 WrapperNode [2023-12-02 17:02:08,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:02:08,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:02:08,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:02:08,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:02:08,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:08,156 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:08,646 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6518 [2023-12-02 17:02:08,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:02:08,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:02:08,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:02:08,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:02:08,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:08,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:08,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:08,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:08,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:08,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:09,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:09,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:09,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:02:09,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:02:09,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:02:09,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:02:09,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (1/1) ... [2023-12-02 17:02:09,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:02:09,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:02:09,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:02:09,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:02:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:02:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:02:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:02:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:02:09,772 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:02:09,774 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:02:13,423 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:02:19,849 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:02:19,849 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:02:19,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:02:19 BoogieIcfgContainer [2023-12-02 17:02:19,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:02:19,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:02:19,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:02:19,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:02:19,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:02:07" (1/3) ... [2023-12-02 17:02:19,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3331d843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:02:19, skipping insertion in model container [2023-12-02 17:02:19,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:08" (2/3) ... [2023-12-02 17:02:19,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3331d843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:02:19, skipping insertion in model container [2023-12-02 17:02:19,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:02:19" (3/3) ... [2023-12-02 17:02:19,859 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal186.c [2023-12-02 17:02:19,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:02:19,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:02:19,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:02:19,932 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a7c153f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:02:19,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:02:19,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 17:02:19,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:02:19,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 17:02:19,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:02:19,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:02:19,949 INFO L85 PathProgramCache]: Analyzing trace with hash 157651481, now seen corresponding path program 1 times [2023-12-02 17:02:19,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:02:19,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612436580] [2023-12-02 17:02:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:02:19,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:02:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:02:21,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 17:02:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:02:22,191 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 17:02:22,193 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 17:02:22,195 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 17:02:22,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:02:22,201 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 17:02:22,204 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:02:22,247 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 17:02:22,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:02:22 BoogieIcfgContainer [2023-12-02 17:02:22,266 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:02:22,267 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:02:22,267 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:02:22,267 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:02:22,267 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:02:19" (3/4) ... [2023-12-02 17:02:22,269 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 17:02:22,270 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:02:22,272 INFO L158 Benchmark]: Toolchain (without parser) took 15231.52ms. Allocated memory was 174.1MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 139.1MB in the beginning and 537.2MB in the end (delta: -398.0MB). Peak memory consumption was 896.3MB. Max. memory is 16.1GB. [2023-12-02 17:02:22,272 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:02:22,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1035.43ms. Allocated memory is still 174.1MB. Free memory was 139.1MB in the beginning and 94.4MB in the end (delta: 44.8MB). Peak memory consumption was 113.7MB. Max. memory is 16.1GB. [2023-12-02 17:02:22,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 569.13ms. Allocated memory was 174.1MB in the beginning and 237.0MB in the end (delta: 62.9MB). Free memory was 94.4MB in the beginning and 104.3MB in the end (delta: -9.9MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. [2023-12-02 17:02:22,274 INFO L158 Benchmark]: Boogie Preprocessor took 507.40ms. Allocated memory was 237.0MB in the beginning and 364.9MB in the end (delta: 127.9MB). Free memory was 104.3MB in the beginning and 207.9MB in the end (delta: -103.7MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2023-12-02 17:02:22,275 INFO L158 Benchmark]: RCFGBuilder took 10695.59ms. Allocated memory was 364.9MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 207.9MB in the beginning and 976.5MB in the end (delta: -768.6MB). Peak memory consumption was 784.3MB. Max. memory is 16.1GB. [2023-12-02 17:02:22,275 INFO L158 Benchmark]: TraceAbstraction took 2412.90ms. Allocated memory is still 1.5GB. Free memory was 975.5MB in the beginning and 538.2MB in the end (delta: 437.3MB). Peak memory consumption was 436.2MB. Max. memory is 16.1GB. [2023-12-02 17:02:22,276 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 1.5GB. Free memory was 538.2MB in the beginning and 537.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:02:22,279 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1035.43ms. Allocated memory is still 174.1MB. Free memory was 139.1MB in the beginning and 94.4MB in the end (delta: 44.8MB). Peak memory consumption was 113.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 569.13ms. Allocated memory was 174.1MB in the beginning and 237.0MB in the end (delta: 62.9MB). Free memory was 94.4MB in the beginning and 104.3MB in the end (delta: -9.9MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 507.40ms. Allocated memory was 237.0MB in the beginning and 364.9MB in the end (delta: 127.9MB). Free memory was 104.3MB in the beginning and 207.9MB in the end (delta: -103.7MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. * RCFGBuilder took 10695.59ms. Allocated memory was 364.9MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 207.9MB in the beginning and 976.5MB in the end (delta: -768.6MB). Peak memory consumption was 784.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2412.90ms. Allocated memory is still 1.5GB. Free memory was 975.5MB in the beginning and 538.2MB in the end (delta: 437.3MB). Peak memory consumption was 436.2MB. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 1.5GB. Free memory was 538.2MB in the beginning and 537.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 21]: 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 bitwiseOr at line 403, overapproximation of bitwiseAnd at line 294. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L35] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 3); [L36] const SORT_20 msb_SORT_20 = (SORT_20)1 << (3 - 1); [L38] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 31); [L39] const SORT_165 msb_SORT_165 = (SORT_165)1 << (31 - 1); [L41] const SORT_1 var_90 = 0; [L42] const SORT_7 var_94 = 0; [L43] const SORT_1 var_115 = 1; [L44] const SORT_7 var_122 = 1618477080; [L45] const SORT_9 var_139 = 0; [L46] const SORT_9 var_148 = 2; [L47] const SORT_9 var_152 = 3; [L48] const SORT_9 var_163 = 1; [L49] const SORT_165 var_166 = 1618477056; [L50] const SORT_165 var_169 = 1618478076; [L51] const SORT_20 var_214 = 0; [L52] const SORT_20 var_218 = 2; [L53] const SORT_20 var_220 = 4; [L54] const SORT_20 var_233 = 3; [L55] const SORT_20 var_318 = 5; [L56] const SORT_20 var_320 = 7; [L57] const SORT_20 var_333 = 6; [L58] const SORT_20 var_367 = 1; [L60] SORT_1 input_2; [L61] SORT_1 input_3; [L62] SORT_1 input_4; [L63] SORT_1 input_5; [L64] SORT_1 input_6; [L65] SORT_7 input_8; [L66] SORT_9 input_10; [L67] SORT_1 input_11; [L68] SORT_7 input_12; [L69] SORT_7 input_13; [L70] SORT_1 input_14; [L71] SORT_7 input_15; [L72] SORT_1 input_16; [L73] SORT_1 input_17; [L74] SORT_1 input_18; [L75] SORT_7 input_19; [L76] SORT_20 input_21; [L77] SORT_7 input_22; [L78] SORT_1 input_23; [L79] SORT_1 input_24; [L80] SORT_7 input_25; [L81] SORT_1 input_26; [L82] SORT_1 input_27; [L83] SORT_1 input_28; [L84] SORT_1 input_29; [L85] SORT_1 input_30; [L86] SORT_1 input_31; [L87] SORT_9 input_32; [L88] SORT_9 input_33; [L89] SORT_7 input_34; [L90] SORT_7 input_35; [L91] SORT_1 input_36; [L92] SORT_9 input_37; [L93] SORT_9 input_38; [L94] SORT_7 input_39; [L95] SORT_7 input_40; [L96] SORT_1 input_41; [L97] SORT_1 input_42; [L98] SORT_1 input_43; [L99] SORT_7 input_44; [L100] SORT_7 input_45; [L101] SORT_1 input_46; [L102] SORT_1 input_47; [L103] SORT_1 input_48; [L104] SORT_1 input_49; [L105] SORT_9 input_50; [L106] SORT_9 input_51; [L107] SORT_1 input_52; [L108] SORT_1 input_53; [L109] SORT_1 input_54; [L110] SORT_1 input_55; [L111] SORT_1 input_56; [L112] SORT_1 input_57; [L113] SORT_1 input_58; [L114] SORT_1 input_59; [L115] SORT_1 input_60; [L116] SORT_1 input_61; [L117] SORT_9 input_62; [L118] SORT_9 input_63; [L119] SORT_1 input_64; [L120] SORT_1 input_65; [L121] SORT_1 input_66; [L122] SORT_1 input_67; [L123] SORT_9 input_68; [L124] SORT_9 input_69; [L125] SORT_7 input_70; [L126] SORT_7 input_71; [L127] SORT_7 input_72; [L128] SORT_7 input_73; [L129] SORT_9 input_74; [L130] SORT_9 input_75; [L131] SORT_7 input_76; [L132] SORT_7 input_77; [L133] SORT_7 input_78; [L134] SORT_7 input_79; [L135] SORT_20 input_80; [L136] SORT_20 input_81; [L137] SORT_1 input_82; [L138] SORT_1 input_83; [L139] SORT_7 input_84; [L140] SORT_7 input_85; [L141] SORT_7 input_86; [L142] SORT_7 input_87; [L143] SORT_1 input_88; [L144] SORT_1 input_89; [L146] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L146] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L147] SORT_7 state_95 = __VERIFIER_nondet_uint() & mask_SORT_7; [L148] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L148] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L149] SORT_7 state_104 = __VERIFIER_nondet_uint() & mask_SORT_7; [L150] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L150] SORT_7 state_119 = __VERIFIER_nondet_uint() & mask_SORT_7; [L151] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L151] SORT_1 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L152] SORT_1 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L153] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L153] SORT_7 state_134 = __VERIFIER_nondet_uint() & mask_SORT_7; [L154] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L154] SORT_9 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L155] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L155] SORT_1 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L156] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L156] SORT_9 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L157] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L157] SORT_1 state_157 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L158] SORT_1 state_201 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L159] SORT_1 state_204 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L160] EXPR __VERIFIER_nondet_uchar() & mask_SORT_20 [L160] SORT_20 state_215 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L161] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L161] SORT_9 state_246 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L162] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L162] SORT_9 state_251 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L163] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L163] SORT_1 state_255 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L164] SORT_1 state_262 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L165] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L165] SORT_1 state_305 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L166] SORT_1 state_308 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L167] SORT_7 state_345 = __VERIFIER_nondet_uint() & mask_SORT_7; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L168] SORT_1 state_348 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L169] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L169] SORT_7 state_356 = __VERIFIER_nondet_uint() & mask_SORT_7; [L170] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L170] SORT_7 state_445 = __VERIFIER_nondet_uint() & mask_SORT_7; [L171] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L171] SORT_7 state_452 = __VERIFIER_nondet_uint() & mask_SORT_7; [L172] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L172] SORT_7 state_604 = __VERIFIER_nondet_uint() & mask_SORT_7; [L173] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L173] SORT_1 state_608 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L174] SORT_1 state_613 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L175] SORT_7 state_618 = __VERIFIER_nondet_uint() & mask_SORT_7; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L176] SORT_9 state_623 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L177] SORT_1 state_626 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L178] SORT_9 state_631 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L179] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L179] SORT_1 state_638 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L180] SORT_1 state_669 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L181] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L181] SORT_1 state_672 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L182] EXPR __VERIFIER_nondet_uchar() & mask_SORT_20 [L182] SORT_20 state_682 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L183] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L183] SORT_9 state_710 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L184] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L184] SORT_9 state_715 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L185] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L185] SORT_1 state_719 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L186] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L186] SORT_1 state_726 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L187] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L187] SORT_1 state_761 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L188] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L188] SORT_1 state_764 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L189] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L189] SORT_7 state_798 = __VERIFIER_nondet_uint() & mask_SORT_7; [L190] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L190] SORT_1 state_801 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L191] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L191] SORT_7 state_809 = __VERIFIER_nondet_uint() & mask_SORT_7; [L192] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L192] SORT_7 state_897 = __VERIFIER_nondet_uint() & mask_SORT_7; [L193] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L193] SORT_7 state_904 = __VERIFIER_nondet_uint() & mask_SORT_7; [L195] SORT_1 init_92_arg_1 = var_90; [L196] state_91 = init_92_arg_1 [L197] SORT_7 init_96_arg_1 = var_94; [L198] state_95 = init_96_arg_1 [L199] SORT_1 init_98_arg_1 = var_90; [L200] state_97 = init_98_arg_1 [L201] SORT_7 init_105_arg_1 = var_94; [L202] state_104 = init_105_arg_1 [L203] SORT_7 init_120_arg_1 = var_94; [L204] state_119 = init_120_arg_1 [L205] SORT_1 init_125_arg_1 = var_90; [L206] state_124 = init_125_arg_1 [L207] SORT_1 init_130_arg_1 = var_90; [L208] state_129 = init_130_arg_1 [L209] SORT_7 init_135_arg_1 = var_94; [L210] state_134 = init_135_arg_1 [L211] SORT_9 init_141_arg_1 = var_139; [L212] state_140 = init_141_arg_1 [L213] SORT_1 init_144_arg_1 = var_90; [L214] state_143 = init_144_arg_1 [L215] SORT_9 init_150_arg_1 = var_139; [L216] state_149 = init_150_arg_1 [L217] SORT_1 init_158_arg_1 = var_90; [L218] state_157 = init_158_arg_1 [L219] SORT_1 init_202_arg_1 = var_90; [L220] state_201 = init_202_arg_1 [L221] SORT_1 init_205_arg_1 = var_90; [L222] state_204 = init_205_arg_1 [L223] SORT_20 init_216_arg_1 = var_214; [L224] state_215 = init_216_arg_1 [L225] SORT_9 init_247_arg_1 = var_139; [L226] state_246 = init_247_arg_1 [L227] SORT_9 init_252_arg_1 = var_139; [L228] state_251 = init_252_arg_1 [L229] SORT_1 init_256_arg_1 = var_90; [L230] state_255 = init_256_arg_1 [L231] SORT_1 init_263_arg_1 = var_90; [L232] state_262 = init_263_arg_1 [L233] SORT_1 init_306_arg_1 = var_90; [L234] state_305 = init_306_arg_1 [L235] SORT_1 init_309_arg_1 = var_90; [L236] state_308 = init_309_arg_1 [L237] SORT_7 init_346_arg_1 = var_94; [L238] state_345 = init_346_arg_1 [L239] SORT_1 init_349_arg_1 = var_90; [L240] state_348 = init_349_arg_1 [L241] SORT_7 init_357_arg_1 = var_94; [L242] state_356 = init_357_arg_1 [L243] SORT_7 init_446_arg_1 = var_94; [L244] state_445 = init_446_arg_1 [L245] SORT_7 init_453_arg_1 = var_94; [L246] state_452 = init_453_arg_1 [L247] SORT_7 init_605_arg_1 = var_94; [L248] state_604 = init_605_arg_1 [L249] SORT_1 init_609_arg_1 = var_90; [L250] state_608 = init_609_arg_1 [L251] SORT_1 init_614_arg_1 = var_90; [L252] state_613 = init_614_arg_1 [L253] SORT_7 init_619_arg_1 = var_94; [L254] state_618 = init_619_arg_1 [L255] SORT_9 init_624_arg_1 = var_139; [L256] state_623 = init_624_arg_1 [L257] SORT_1 init_627_arg_1 = var_90; [L258] state_626 = init_627_arg_1 [L259] SORT_9 init_632_arg_1 = var_139; [L260] state_631 = init_632_arg_1 [L261] SORT_1 init_639_arg_1 = var_90; [L262] state_638 = init_639_arg_1 [L263] SORT_1 init_670_arg_1 = var_90; [L264] state_669 = init_670_arg_1 [L265] SORT_1 init_673_arg_1 = var_90; [L266] state_672 = init_673_arg_1 [L267] SORT_20 init_683_arg_1 = var_214; [L268] state_682 = init_683_arg_1 [L269] SORT_9 init_711_arg_1 = var_139; [L270] state_710 = init_711_arg_1 [L271] SORT_9 init_716_arg_1 = var_139; [L272] state_715 = init_716_arg_1 [L273] SORT_1 init_720_arg_1 = var_90; [L274] state_719 = init_720_arg_1 [L275] SORT_1 init_727_arg_1 = var_90; [L276] state_726 = init_727_arg_1 [L277] SORT_1 init_762_arg_1 = var_90; [L278] state_761 = init_762_arg_1 [L279] SORT_1 init_765_arg_1 = var_90; [L280] state_764 = init_765_arg_1 [L281] SORT_7 init_799_arg_1 = var_94; [L282] state_798 = init_799_arg_1 [L283] SORT_1 init_802_arg_1 = var_90; [L284] state_801 = init_802_arg_1 [L285] SORT_7 init_810_arg_1 = var_94; [L286] state_809 = init_810_arg_1 [L287] SORT_7 init_898_arg_1 = var_94; [L288] state_897 = init_898_arg_1 [L289] SORT_7 init_905_arg_1 = var_94; [L290] state_904 = init_905_arg_1 VAL [init_105_arg_1=0, init_120_arg_1=0, init_125_arg_1=0, init_130_arg_1=0, init_135_arg_1=0, init_141_arg_1=0, init_144_arg_1=0, init_150_arg_1=0, init_158_arg_1=0, init_202_arg_1=0, init_205_arg_1=0, init_216_arg_1=0, init_247_arg_1=0, init_252_arg_1=0, init_256_arg_1=0, init_263_arg_1=0, init_306_arg_1=0, init_309_arg_1=0, init_346_arg_1=0, init_349_arg_1=0, init_357_arg_1=0, init_446_arg_1=0, init_453_arg_1=0, init_605_arg_1=0, init_609_arg_1=0, init_614_arg_1=0, init_619_arg_1=0, init_624_arg_1=0, init_627_arg_1=0, init_632_arg_1=0, init_639_arg_1=0, init_670_arg_1=0, init_673_arg_1=0, init_683_arg_1=0, init_711_arg_1=0, init_716_arg_1=0, init_720_arg_1=0, init_727_arg_1=0, init_762_arg_1=0, init_765_arg_1=0, init_799_arg_1=0, init_802_arg_1=0, init_810_arg_1=0, init_898_arg_1=0, init_905_arg_1=0, init_92_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, mask_SORT_165=2147483647, mask_SORT_1=1, mask_SORT_20=7, mask_SORT_7=4294967295, mask_SORT_9=3, msb_SORT_165=1073741824, msb_SORT_1=1, msb_SORT_20=4, msb_SORT_7=2147483648, msb_SORT_9=2, state_104=0, state_119=0, state_124=0, state_129=0, state_134=0, state_140=0, state_143=0, state_149=0, state_157=0, state_201=0, state_204=0, state_215=0, state_246=0, state_251=0, state_255=0, state_262=0, state_305=0, state_308=0, state_345=0, state_348=0, state_356=0, state_445=0, state_452=0, state_604=0, state_608=0, state_613=0, state_618=0, state_623=0, state_626=0, state_631=0, state_638=0, state_669=0, state_672=0, state_682=0, state_710=0, state_715=0, state_719=0, state_726=0, state_761=0, state_764=0, state_798=0, state_801=0, state_809=0, state_897=0, state_904=0, state_91=0, state_95=0, state_97=0, var_115=1, var_122=1618477080, var_139=0, var_148=2, var_152=3, var_163=1, var_166=1618477056, var_169=1618478076, var_214=0, var_218=2, var_220=4, var_233=3, var_318=5, var_320=7, var_333=6, var_367=1, var_90=0, var_94=0] [L293] input_2 = __VERIFIER_nondet_uchar() [L294] EXPR input_2 & mask_SORT_1 [L294] input_2 = input_2 & mask_SORT_1 [L295] input_3 = __VERIFIER_nondet_uchar() [L296] EXPR input_3 & mask_SORT_1 [L296] input_3 = input_3 & mask_SORT_1 [L297] input_4 = __VERIFIER_nondet_uchar() [L298] EXPR input_4 & mask_SORT_1 [L298] input_4 = input_4 & mask_SORT_1 [L299] input_5 = __VERIFIER_nondet_uchar() [L300] input_6 = __VERIFIER_nondet_uchar() [L301] input_8 = __VERIFIER_nondet_uint() [L302] EXPR input_8 & mask_SORT_7 [L302] input_8 = input_8 & mask_SORT_7 [L303] input_10 = __VERIFIER_nondet_uchar() [L304] input_11 = __VERIFIER_nondet_uchar() [L305] input_12 = __VERIFIER_nondet_uint() [L306] EXPR input_12 & mask_SORT_7 [L306] input_12 = input_12 & mask_SORT_7 [L307] input_13 = __VERIFIER_nondet_uint() [L308] input_14 = __VERIFIER_nondet_uchar() [L309] EXPR input_14 & mask_SORT_1 [L309] input_14 = input_14 & mask_SORT_1 [L310] input_15 = __VERIFIER_nondet_uint() [L311] input_16 = __VERIFIER_nondet_uchar() [L312] EXPR input_16 & mask_SORT_1 [L312] input_16 = input_16 & mask_SORT_1 [L313] input_17 = __VERIFIER_nondet_uchar() [L314] input_18 = __VERIFIER_nondet_uchar() [L315] EXPR input_18 & mask_SORT_1 [L315] input_18 = input_18 & mask_SORT_1 [L316] input_19 = __VERIFIER_nondet_uint() [L317] input_21 = __VERIFIER_nondet_uchar() [L318] input_22 = __VERIFIER_nondet_uint() [L319] input_23 = __VERIFIER_nondet_uchar() [L320] input_24 = __VERIFIER_nondet_uchar() [L321] input_25 = __VERIFIER_nondet_uint() [L322] input_26 = __VERIFIER_nondet_uchar() [L323] input_27 = __VERIFIER_nondet_uchar() [L324] input_28 = __VERIFIER_nondet_uchar() [L325] input_29 = __VERIFIER_nondet_uchar() [L326] input_30 = __VERIFIER_nondet_uchar() [L327] input_31 = __VERIFIER_nondet_uchar() [L328] input_32 = __VERIFIER_nondet_uchar() [L329] input_33 = __VERIFIER_nondet_uchar() [L330] input_34 = __VERIFIER_nondet_uint() [L331] input_35 = __VERIFIER_nondet_uint() [L332] input_36 = __VERIFIER_nondet_uchar() [L333] input_37 = __VERIFIER_nondet_uchar() [L334] input_38 = __VERIFIER_nondet_uchar() [L335] input_39 = __VERIFIER_nondet_uint() [L336] input_40 = __VERIFIER_nondet_uint() [L337] input_41 = __VERIFIER_nondet_uchar() [L338] input_42 = __VERIFIER_nondet_uchar() [L339] input_43 = __VERIFIER_nondet_uchar() [L340] input_44 = __VERIFIER_nondet_uint() [L341] input_45 = __VERIFIER_nondet_uint() [L342] input_46 = __VERIFIER_nondet_uchar() [L343] input_47 = __VERIFIER_nondet_uchar() [L344] input_48 = __VERIFIER_nondet_uchar() [L345] input_49 = __VERIFIER_nondet_uchar() [L346] input_50 = __VERIFIER_nondet_uchar() [L347] input_51 = __VERIFIER_nondet_uchar() [L348] input_52 = __VERIFIER_nondet_uchar() [L349] input_53 = __VERIFIER_nondet_uchar() [L350] input_54 = __VERIFIER_nondet_uchar() [L351] input_55 = __VERIFIER_nondet_uchar() [L352] input_56 = __VERIFIER_nondet_uchar() [L353] input_57 = __VERIFIER_nondet_uchar() [L354] input_58 = __VERIFIER_nondet_uchar() [L355] input_59 = __VERIFIER_nondet_uchar() [L356] input_60 = __VERIFIER_nondet_uchar() [L357] input_61 = __VERIFIER_nondet_uchar() [L358] input_62 = __VERIFIER_nondet_uchar() [L359] input_63 = __VERIFIER_nondet_uchar() [L360] input_64 = __VERIFIER_nondet_uchar() [L361] input_65 = __VERIFIER_nondet_uchar() [L362] input_66 = __VERIFIER_nondet_uchar() [L363] input_67 = __VERIFIER_nondet_uchar() [L364] input_68 = __VERIFIER_nondet_uchar() [L365] input_69 = __VERIFIER_nondet_uchar() [L366] input_70 = __VERIFIER_nondet_uint() [L367] input_71 = __VERIFIER_nondet_uint() [L368] input_72 = __VERIFIER_nondet_uint() [L369] input_73 = __VERIFIER_nondet_uint() [L370] input_74 = __VERIFIER_nondet_uchar() [L371] input_75 = __VERIFIER_nondet_uchar() [L372] input_76 = __VERIFIER_nondet_uint() [L373] input_77 = __VERIFIER_nondet_uint() [L374] input_78 = __VERIFIER_nondet_uint() [L375] input_79 = __VERIFIER_nondet_uint() [L376] input_80 = __VERIFIER_nondet_uchar() [L377] input_81 = __VERIFIER_nondet_uchar() [L378] input_82 = __VERIFIER_nondet_uchar() [L379] input_83 = __VERIFIER_nondet_uchar() [L380] input_84 = __VERIFIER_nondet_uint() [L381] input_85 = __VERIFIER_nondet_uint() [L382] input_86 = __VERIFIER_nondet_uint() [L383] input_87 = __VERIFIER_nondet_uint() [L384] input_88 = __VERIFIER_nondet_uchar() [L385] input_89 = __VERIFIER_nondet_uchar() [L388] SORT_1 var_93_arg_0 = state_91; [L389] SORT_1 var_93 = ~var_93_arg_0; [L390] SORT_1 var_99_arg_0 = state_97; [L391] SORT_7 var_99_arg_1 = state_95; [L392] SORT_7 var_99_arg_2 = input_19; [L393] SORT_7 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L394] SORT_7 var_100_arg_0 = var_99; [L395] SORT_1 var_100 = var_100_arg_0 >> 20; [L396] SORT_7 var_101_arg_0 = var_99; [L397] SORT_1 var_101 = var_101_arg_0 >> 22; [L398] SORT_1 var_102_arg_0 = var_100; [L399] SORT_1 var_102_arg_1 = var_101; [L400] EXPR var_102_arg_0 & var_102_arg_1 [L400] SORT_1 var_102 = var_102_arg_0 & var_102_arg_1; [L401] SORT_1 var_103_arg_0 = var_102; [L402] SORT_1 var_103_arg_1 = input_17; [L403] EXPR var_103_arg_0 | var_103_arg_1 [L403] SORT_1 var_103 = var_103_arg_0 | var_103_arg_1; [L404] EXPR var_103 & mask_SORT_1 [L404] var_103 = var_103 & mask_SORT_1 [L405] SORT_1 var_106_arg_0 = state_97; [L406] SORT_7 var_106_arg_1 = state_104; [L407] SORT_7 var_106_arg_2 = input_19; [L408] SORT_7 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L409] SORT_7 var_107_arg_0 = var_106; [L410] SORT_1 var_107 = var_107_arg_0 >> 20; [L411] SORT_7 var_108_arg_0 = var_106; [L412] SORT_1 var_108 = var_108_arg_0 >> 22; [L413] SORT_1 var_109_arg_0 = var_107; [L414] SORT_1 var_109_arg_1 = var_108; [L415] EXPR var_109_arg_0 & var_109_arg_1 [L415] SORT_1 var_109 = var_109_arg_0 & var_109_arg_1; [L416] SORT_1 var_110_arg_0 = var_109; [L417] SORT_1 var_110_arg_1 = input_17; [L418] EXPR var_110_arg_0 | var_110_arg_1 [L418] SORT_1 var_110 = var_110_arg_0 | var_110_arg_1; [L419] EXPR var_110 & mask_SORT_1 [L419] var_110 = var_110 & mask_SORT_1 [L420] SORT_1 var_111_arg_0 = var_103; [L421] SORT_1 var_111_arg_1 = var_110; [L422] SORT_1 var_111 = var_111_arg_0 == var_111_arg_1; [L423] SORT_1 var_112_arg_0 = var_93; [L424] SORT_1 var_112_arg_1 = var_111; [L425] EXPR var_112_arg_0 | var_112_arg_1 [L425] SORT_1 var_112 = var_112_arg_0 | var_112_arg_1; [L426] SORT_1 var_116_arg_0 = var_112; [L427] SORT_1 var_116 = ~var_116_arg_0; [L428] SORT_1 var_117_arg_0 = var_115; [L429] SORT_1 var_117_arg_1 = var_116; [L430] EXPR var_117_arg_0 & var_117_arg_1 [L430] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L431] EXPR var_117 & mask_SORT_1 [L431] var_117 = var_117 & mask_SORT_1 [L432] SORT_1 bad_118_arg_0 = var_117; [L433] CALL __VERIFIER_assert(!(bad_118_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=7occurred 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, 0.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 17:02:22,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:02:24,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:02:24,337 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 17:02:24,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:02:24,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:02:24,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:02:24,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:02:24,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:02:24,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:02:24,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:02:24,372 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:02:24,373 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:02:24,373 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:02:24,374 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:02:24,374 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:02:24,375 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:02:24,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:02:24,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:02:24,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:02:24,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:02:24,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:02:24,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:02:24,380 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:02:24,380 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:02:24,381 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:02:24,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:02:24,381 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:02:24,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:02:24,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:02:24,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:02:24,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:02:24,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:02:24,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:02:24,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:02:24,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:02:24,385 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:02:24,385 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:02:24,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:02:24,385 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:02:24,385 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:02:24,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:02:24,386 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_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b [2023-12-02 17:02:24,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:02:24,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:02:24,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:02:24,690 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:02:24,690 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:02:24,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c [2023-12-02 17:02:27,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:02:27,790 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:02:27,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c [2023-12-02 17:02:27,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data/1df0e03b6/44784c4d1e10421facddba534282c1e3/FLAG1dae28866 [2023-12-02 17:02:27,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/data/1df0e03b6/44784c4d1e10421facddba534282c1e3 [2023-12-02 17:02:27,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:02:27,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:02:27,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:02:27,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:02:27,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:02:27,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:02:27" (1/1) ... [2023-12-02 17:02:27,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d647516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:27, skipping insertion in model container [2023-12-02 17:02:27,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:02:27" (1/1) ... [2023-12-02 17:02:27,921 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:02:28,138 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2023-12-02 17:02:28,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:02:28,531 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:02:28,544 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2023-12-02 17:02:28,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:02:28,768 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:02:28,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28 WrapperNode [2023-12-02 17:02:28,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:02:28,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:02:28,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:02:28,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:02:28,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:28,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:28,981 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3604 [2023-12-02 17:02:28,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:02:28,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:02:28,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:02:28,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:02:28,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:28,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:02:29,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:02:29,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:02:29,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:02:29,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (1/1) ... [2023-12-02 17:02:29,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:02:29,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:02:29,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:02:29,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:02:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:02:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:02:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:02:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:02:29,740 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:02:29,742 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:02:34,670 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:02:34,893 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:02:34,893 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:02:34,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:02:34 BoogieIcfgContainer [2023-12-02 17:02:34,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:02:34,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:02:34,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:02:34,900 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:02:34,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:02:27" (1/3) ... [2023-12-02 17:02:34,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4d0d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:02:34, skipping insertion in model container [2023-12-02 17:02:34,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:02:28" (2/3) ... [2023-12-02 17:02:34,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4d0d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:02:34, skipping insertion in model container [2023-12-02 17:02:34,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:02:34" (3/3) ... [2023-12-02 17:02:34,903 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal186.c [2023-12-02 17:02:34,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:02:34,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:02:34,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:02:34,960 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@75e58e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:02:34,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:02:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 17:02:34,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:02:34,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 17:02:34,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:02:34,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:02:34,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 17:02:34,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:02:34,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842703074] [2023-12-02 17:02:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:02:34,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:02:34,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:02:34,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:02:34,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 17:02:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:02:35,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 17:02:35,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:02:36,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:02:36,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:02:36,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:02:36,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842703074] [2023-12-02 17:02:36,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842703074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:02:36,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:02:36,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:02:36,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156638427] [2023-12-02 17:02:36,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:02:36,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:02:36,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:02:36,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:02:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:02:36,051 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:37,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:02:37,073 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 17:02:37,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:02:37,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 17:02:37,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:02:37,082 INFO L225 Difference]: With dead ends: 16 [2023-12-02 17:02:37,082 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 17:02:37,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:02:37,089 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:02:37,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 17:02:37,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 17:02:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 17:02:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 17:02:37,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 17:02:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:02:37,119 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 17:02:37,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 17:02:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 17:02:37,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:02:37,120 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 17:02:37,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:02:37,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:02:37,321 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:02:37,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:02:37,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 17:02:37,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:02:37,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049033460] [2023-12-02 17:02:37,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:02:37,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:02:37,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:02:37,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:02:37,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 17:02:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:02:44,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 17:02:44,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:02:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:02:44,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:02:45,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:02:45,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:02:45,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049033460] [2023-12-02 17:02:45,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049033460] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:02:45,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1369590154] [2023-12-02 17:02:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:02:45,193 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:02:45,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:02:45,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:02:45,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 17:02:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:02:48,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 17:02:48,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:02:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:02:49,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:02:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:02:49,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1369590154] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:02:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527267000] [2023-12-02 17:02:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:02:49,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:02:49,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:02:49,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:02:49,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:02:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:02:50,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-02 17:02:50,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:02:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:02:50,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:02:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:02:51,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527267000] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:02:51,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:02:51,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 10 [2023-12-02 17:02:51,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345058808] [2023-12-02 17:02:51,579 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:02:51,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:02:51,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:02:51,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:02:51,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:02:51,582 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:52,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:02:52,874 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-02 17:02:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:02:52,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 17:02:52,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:02:52,875 INFO L225 Difference]: With dead ends: 14 [2023-12-02 17:02:52,875 INFO L226 Difference]: Without dead ends: 12 [2023-12-02 17:02:52,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:02:52,877 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:02:52,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 17:02:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-02 17:02:52,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-02 17:02:52,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 17:02:52,880 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-02 17:02:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:02:52,881 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-02 17:02:52,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:02:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 17:02:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 17:02:52,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:02:52,881 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-02 17:02:52,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 17:02:53,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 17:02:53,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-02 17:02:53,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:02:53,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:02:53,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:02:53,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-02 17:02:53,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:02:53,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907851735] [2023-12-02 17:02:53,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:02:53,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:02:53,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:02:53,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:02:53,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 17:03:19,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:03:19,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:03:19,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 5892 conjuncts, 151 conjunts are in the unsatisfiable core [2023-12-02 17:03:19,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:03:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:03:20,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:03:37,941 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse40 (= |c_ULTIMATE.start_main_~var_90~0#1| (_ bv0 8))) (.cse37 (forall ((|v_ULTIMATE.start_main_~var_112_arg_0~0#1_19| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_117_arg_0~0#1_19| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_112_arg_0~0#1_19|) (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_117_arg_0~0#1_19|)))))) (_ bv0 8)))) (.cse34 (forall ((|v_ULTIMATE.start_main_~var_112_arg_0~0#1_19| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_117_arg_0~0#1_19| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_112_arg_0~0#1_19|) (_ bv0 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_117_arg_0~0#1_19|))))))))) (.cse59 (forall ((|v_ULTIMATE.start_main_~var_1218_arg_1~0#1_16| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_1218_arg_1~0#1_16|))))) (_ bv0 8))))) (.cse30 (= ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_91~0#1|)))))) (_ bv0 8)))) (let ((.cse54 (not .cse30)) (.cse55 (or .cse30 .cse59)) (.cse35 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1221~0#1_16| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ BitVec 32))) (let ((.cse70 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse70 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse70 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv22 32)))))))))))))))) .cse34)) (.cse36 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ BitVec 32))) (let ((.cse69 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse69 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse69 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv20 32)))))))))))))))) .cse34)) (.cse52 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ BitVec 32))) (not (let ((.cse68 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse68 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse68 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv20 32))))))))))))))))) .cse37)) (.cse53 (not .cse40))) (let ((.cse47 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~var_99~0#1| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~var_99~0#1| (_ bv20 32)))))))) (.cse41 (and (or .cse59 .cse53) (or .cse59 .cse40))) (.cse48 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~var_106~0#1| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |c_ULTIMATE.start_main_~var_106~0#1| (_ bv20 32)))))))) (.cse26 (and (or .cse37 (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_1215~0#1_16| (_ BitVec 32))) (not (let ((.cse66 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse66 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse66 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv20 32)))))))))))))))))) (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_1215~0#1_16| (_ BitVec 32))) (let ((.cse67 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse67 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse67 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv20 32)))))))))))))))) .cse34))) (.cse29 (and (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1221~0#1_16| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ BitVec 32))) (not (let ((.cse65 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse65 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse65 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv22 32))))))))))))))))) .cse37) .cse35 .cse36 .cse52)) (.cse45 (and (or (forall ((|v_ULTIMATE.start_main_~var_1217_arg_1~0#1_16| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_1217_arg_1~0#1_16|))))) .cse2))))) .cse54) .cse55))) (let ((.cse39 (or .cse29 .cse45)) (.cse38 (or .cse26 .cse45)) (.cse14 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1215~0#1_16| (_ BitVec 32))) (not (let ((.cse64 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse64 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse64 .cse48)))))))))) .cse37)) (.cse16 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1215~0#1_16| (_ BitVec 32))) (let ((.cse63 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse63 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse63 .cse48))))))))) .cse34)) (.cse23 (or .cse37 (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1215~0#1_16| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_1221~0#1_16| (_ BitVec 32))) (not (let ((.cse62 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse62 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse62 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv22 32))))))))))))))))))) (.cse31 (or .cse41 .cse26)) (.cse44 (and (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ BitVec 32))) (let ((.cse60 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse60 .cse47)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse60 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv20 32)))))))))))))))) .cse34) (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ BitVec 32))) (not (let ((.cse61 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 .cse47)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse61 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv20 32))))))))))))))))) .cse37))) (.cse43 (and (or .cse29 .cse59) (or .cse59 .cse26))) (.cse24 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1215~0#1_16| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_1221~0#1_16| (_ BitVec 32))) (let ((.cse58 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1215~0#1_16| (_ bv22 32)))))))))))))))) .cse34)) (.cse27 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1221~0#1_16| (_ BitVec 32))) (let ((.cse57 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse57 .cse47)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse57 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv22 32)))))))))))))))) .cse34)) (.cse28 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_1221~0#1_16| (_ BitVec 32))) (not (let ((.cse56 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse56 .cse47)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse56 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv22 32))))))))))))))))) .cse37)) (.cse32 (or .cse41 .cse29)) (.cse25 (and (or .cse40 .cse45) (or .cse53 (and (or (not (= ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_115~0#1|))))))) (_ bv0 8))) .cse54) .cse55)))) (.cse42 (and (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ BitVec 32))) (not (let ((.cse50 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse50 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse50 .cse48)))))))))) .cse37) (or .cse34 (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ BitVec 32))) (let ((.cse51 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse51 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_101_arg_0~0#1_19| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse51 .cse48)))))))))) .cse36 .cse52))) (let ((.cse5 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8))) (let ((.cse49 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse49 .cse47)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse49 .cse48))))))))) .cse34)) (.cse6 (or .cse25 .cse42)) (.cse12 (or .cse30 (and .cse23 .cse31 (or .cse41 .cse44) (or .cse40 .cse43) .cse24 .cse27 .cse28 .cse32))) (.cse7 (or (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8))) (not (let ((.cse46 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse46 .cse47)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse46 .cse48)))))))))) .cse37)) (.cse13 (or (and .cse38 .cse14 (or .cse42 .cse45) .cse16) .cse40)) (.cse8 (or .cse25 .cse44)) (.cse18 (or (and .cse23 .cse38 .cse39 (or .cse30 .cse43) .cse24 .cse27 .cse28 (or .cse44 .cse45)) .cse40)) (.cse19 (or (and .cse14 .cse31 (or .cse41 .cse42) .cse16) .cse30))) (let ((.cse10 (= |c_ULTIMATE.start_main_~input_18~0#1| (_ bv0 8))) (.cse11 (and .cse5 .cse6 .cse12 .cse7 .cse13 .cse8 .cse18 .cse19))) (let ((.cse4 (or (and .cse23 .cse38 .cse39 .cse24) .cse40)) (.cse3 (and (or .cse25 (forall ((|v_ULTIMATE.start_main_~input_17~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_1221~0#1_16| (_ BitVec 32))) (let ((.cse33 ((_ zero_extend 24) |v_ULTIMATE.start_main_~input_17~0#1_17|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse33 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv20 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_1221~0#1_16| (_ bv22 32))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse33 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv22 32)))) ((_ zero_extend 24) ((_ extract 7 0) (bvlshr |v_ULTIMATE.start_main_~var_108_arg_0~0#1_19| (_ bv20 32)))))))))))))))) .cse34) (or .cse25 (and .cse35 .cse36)) .cse37)) (.cse9 (or .cse30 (and .cse23 .cse31 .cse24 .cse32))) (.cse1 (or (not .cse10) .cse11)) (.cse0 (= |c_ULTIMATE.start_main_~state_97~0#1| (_ bv0 8)))) (and (or (not .cse0) (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~input_22~0#1| (_ BitVec 32))) (not (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |ULTIMATE.start_main_~mask_SORT_7~0#1| |ULTIMATE.start_main_~input_22~0#1|)))) (and .cse1 (or (and (or (forall ((|ULTIMATE.start_main_~input_23~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_24~0#1| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_23~0#1|))) (_ bv1 32)))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_24~0#1|)))))))))) .cse3) .cse4 (or (and .cse5 .cse6 .cse7 .cse8) (forall ((|ULTIMATE.start_main_~input_23~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_24~0#1| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_23~0#1|))) (_ bv1 32)))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~input_24~0#1|)))))))))))) .cse9) .cse10))) (or .cse11 (forall ((|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~input_22~0#1| (_ BitVec 32))) (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |ULTIMATE.start_main_~mask_SORT_7~0#1| |ULTIMATE.start_main_~input_22~0#1|)))))) (or (let ((.cse22 (or .cse25 .cse29)) (.cse21 (forall ((|v_ULTIMATE.start_main_~var_615_arg_1~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_610_arg_1~0#1_16| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_615_arg_1~0#1_16|))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_610_arg_1~0#1_16|))) (_ bv1 32))))))))))))) (let ((.cse20 (or (and .cse22 .cse27 .cse28) .cse21)) (.cse17 (forall ((|v_ULTIMATE.start_main_~var_126_arg_1~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_16| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_126_arg_1~0#1_16|))) (_ bv1 32)))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_16|)))))))) (_ bv0 8)))) (.cse15 (or .cse25 .cse26))) (and (or (forall ((|v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| (_ BitVec 32))) (or (not (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|))) (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|)))) (and .cse5 .cse6 .cse12 .cse7 .cse13 (or (and .cse14 .cse15 .cse16) .cse17 .cse10) .cse8 .cse18 .cse19)) (or (and .cse5 .cse6 .cse12 .cse7 .cse13 .cse8 (or .cse10 (and .cse4 .cse9 .cse20)) .cse18 .cse19) (forall ((|v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| (_ BitVec 32))) (or (not (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|))) (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|))))) (or (and (or .cse10 (and .cse4 (or (forall ((|v_ULTIMATE.start_main_~var_126_arg_1~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_16| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_126_arg_1~0#1_16|))) (_ bv1 32)))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_16|)))))))) (_ bv0 8)))) (and .cse5 .cse6 .cse7 .cse8 .cse20)) (or .cse17 .cse3 .cse21) .cse9 (or .cse17 (and .cse6 .cse14 (or (and .cse22 .cse23 .cse24) .cse21) .cse15 .cse16)))) .cse1) (forall ((|v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| (_ BitVec 32))) (or (not (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|))) (not (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|)))))) (or .cse11 (forall ((|v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| (_ BitVec 32)) (|ULTIMATE.start_main_~mask_SORT_7~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| (_ BitVec 32))) (or (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_121_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|)) (= |c_ULTIMATE.start_main_~var_122~0#1| (bvand |v_ULTIMATE.start_main_~var_606_arg_1~0#1_16| |ULTIMATE.start_main_~mask_SORT_7~0#1|)))))))) .cse0)))))))))) is different from false [2023-12-02 17:04:21,876 WARN L293 SmtUtils]: Spent 11.62s on a formula simplification that was a NOOP. DAG size: 477 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:05:44,313 WARN L293 SmtUtils]: Spent 52.51s on a formula simplification. DAG size of input: 573 DAG size of output: 545 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:06:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-12-02 17:06:36,862 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:06:36,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907851735] [2023-12-02 17:06:36,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907851735] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:06:36,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1499273217] [2023-12-02 17:06:36,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:06:36,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:06:36,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:06:36,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:06:36,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 17:06:43,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:06:43,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:06:43,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 5892 conjuncts, 142 conjunts are in the unsatisfiable core [2023-12-02 17:06:43,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:06:44,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:07:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:26,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1499273217] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:07:26,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450541057] [2023-12-02 17:07:26,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:07:26,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:07:26,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:07:26,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:07:26,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 17:07:28,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:07:28,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:07:28,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 5892 conjuncts, 152 conjunts are in the unsatisfiable core [2023-12-02 17:07:28,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:07:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:29,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:08:14,850 WARN L293 SmtUtils]: Spent 9.32s on a formula simplification that was a NOOP. DAG size: 462 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:09:17,836 WARN L293 SmtUtils]: Spent 18.97s on a formula simplification that was a NOOP. DAG size: 547 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:11:24,181 WARN L293 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 687 DAG size of output: 661 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:12:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:12:43,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450541057] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:12:43,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:12:43,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 25 [2023-12-02 17:12:43,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513336258] [2023-12-02 17:12:43,711 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:12:43,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 17:12:43,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:12:43,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 17:12:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=474, Unknown=37, NotChecked=46, Total=650 [2023-12-02 17:12:43,714 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 25 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:12:47,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:12:47,963 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-12-02 17:12:47,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:12:47,964 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 25 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-02 17:12:47,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:12:47,964 INFO L225 Difference]: With dead ends: 17 [2023-12-02 17:12:47,964 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 17:12:47,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 262.1s TimeCoverageRelationStatistics Valid=138, Invalid=641, Unknown=37, NotChecked=54, Total=870 [2023-12-02 17:12:47,966 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:12:47,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 10 Unchecked, 3.6s Time] [2023-12-02 17:12:47,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 17:12:47,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-12-02 17:12:47,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:12:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 17:12:47,969 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2023-12-02 17:12:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:12:47,970 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-02 17:12:47,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 25 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:12:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 17:12:47,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 17:12:47,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:12:47,970 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-12-02 17:12:47,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 17:12:48,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 17:12:48,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 17:12:48,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:12:48,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:12:48,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:12:48,572 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 3 times [2023-12-02 17:12:48,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:12:48,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969781131] [2023-12-02 17:12:48,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:12:48,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:12:48,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:12:48,578 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:12:48,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_933fdabc-a0eb-4dd6-82f4-765a2485eb1b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 17:13:55,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 17:13:55,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:13:55,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 8743 conjuncts, 1042 conjunts are in the unsatisfiable core [2023-12-02 17:13:55,889 INFO L285 TraceCheckSpWp]: Computing forward predicates...