./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c9ac74b48c7165afb9f2b624d9d9a4575a37c69f2655e95ac9683bba5876265 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:05:53,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:05:53,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:05:53,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:05:53,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:05:53,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:05:53,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:05:53,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:05:53,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:05:53,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:05:53,732 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:05:53,733 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:05:53,733 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:05:53,734 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:05:53,736 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:05:53,736 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:05:53,737 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:05:53,737 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:05:53,737 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:05:53,738 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:05:53,738 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:05:53,743 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:05:53,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:05:53,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:05:53,744 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:05:53,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:05:53,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:05:53,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:05:53,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:05:53,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:05:53,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:05:53,746 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:05:53,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:05:53,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:05:53,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:05:53,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:05:53,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:05:53,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:05:53,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:05:53,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:05:53,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:05:53,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:05:53,753 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:05:53,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:05:53,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:05:53,754 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:05:53,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:05:53,755 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_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c9ac74b48c7165afb9f2b624d9d9a4575a37c69f2655e95ac9683bba5876265 [2024-11-09 07:05:54,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:05:54,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:05:54,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:05:54,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:05:54,117 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:05:54,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i Unable to find full path for "g++" [2024-11-09 07:05:56,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:05:56,536 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:05:56,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i [2024-11-09 07:05:56,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data/4fdb69611/ddc9a3e009ec4aba85c3b978ede3cccb/FLAG48a1b9c76 [2024-11-09 07:05:56,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data/4fdb69611/ddc9a3e009ec4aba85c3b978ede3cccb [2024-11-09 07:05:56,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:05:56,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:05:56,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:05:56,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:05:56,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:05:56,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:05:56" (1/1) ... [2024-11-09 07:05:56,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee7e3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:56, skipping insertion in model container [2024-11-09 07:05:56,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:05:56" (1/1) ... [2024-11-09 07:05:56,618 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:05:56,855 WARN L250 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_160e3b80-468b-4b20-ac0c-6ffd21f82172/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i[915,928] [2024-11-09 07:05:56,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:05:56,932 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:05:56,947 WARN L250 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_160e3b80-468b-4b20-ac0c-6ffd21f82172/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i[915,928] [2024-11-09 07:05:56,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:05:57,006 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:05:57,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57 WrapperNode [2024-11-09 07:05:57,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:05:57,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:05:57,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:05:57,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:05:57,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,057 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-09 07:05:57,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:05:57,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:05:57,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:05:57,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:05:57,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:05:57,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:05:57,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:05:57,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:05:57,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (1/1) ... [2024-11-09 07:05:57,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:05:57,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:57,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:05:57,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:05:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:05:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:05:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:05:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:05:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:05:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:05:57,261 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:05:57,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:05:57,641 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 07:05:57,642 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:05:57,833 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:05:57,834 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:05:57,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:05:57 BoogieIcfgContainer [2024-11-09 07:05:57,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:05:57,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:05:57,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:05:57,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:05:57,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:05:56" (1/3) ... [2024-11-09 07:05:57,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e260a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:05:57, skipping insertion in model container [2024-11-09 07:05:57,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:57" (2/3) ... [2024-11-09 07:05:57,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e260a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:05:57, skipping insertion in model container [2024-11-09 07:05:57,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:05:57" (3/3) ... [2024-11-09 07:05:57,850 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-30.i [2024-11-09 07:05:57,874 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:05:57,875 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:05:57,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:05:57,977 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74abc3b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:05:57,978 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:05:57,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:05:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 07:05:57,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:57,996 INFO L215 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:57,996 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:58,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:58,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1320003175, now seen corresponding path program 1 times [2024-11-09 07:05:58,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:58,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212464201] [2024-11-09 07:05:58,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:58,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:05:58,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063260366] [2024-11-09 07:05:58,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:58,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:58,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:58,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:58,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:05:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:05:58,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:05:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:05:58,580 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:05:58,583 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:05:58,585 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:05:58,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:05:58,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 07:05:58,794 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:05:58,836 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:05:58,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:05:58 BoogieIcfgContainer [2024-11-09 07:05:58,839 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:05:58,840 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:05:58,840 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:05:58,841 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:05:58,841 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:05:57" (3/4) ... [2024-11-09 07:05:58,845 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:05:58,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:05:58,847 INFO L158 Benchmark]: Toolchain (without parser) took 2276.90ms. Allocated memory was 140.5MB in the beginning and 211.8MB in the end (delta: 71.3MB). Free memory was 97.7MB in the beginning and 141.3MB in the end (delta: -43.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2024-11-09 07:05:58,848 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:05:58,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.66ms. Allocated memory is still 140.5MB. Free memory was 97.7MB in the beginning and 83.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 07:05:58,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.28ms. Allocated memory is still 140.5MB. Free memory was 83.8MB in the beginning and 81.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:05:58,850 INFO L158 Benchmark]: Boogie Preprocessor took 38.86ms. Allocated memory is still 140.5MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:05:58,850 INFO L158 Benchmark]: RCFGBuilder took 737.86ms. Allocated memory was 140.5MB in the beginning and 211.8MB in the end (delta: 71.3MB). Free memory was 79.7MB in the beginning and 173.7MB in the end (delta: -94.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-11-09 07:05:58,851 INFO L158 Benchmark]: TraceAbstraction took 1000.09ms. Allocated memory is still 211.8MB. Free memory was 173.7MB in the beginning and 141.3MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-09 07:05:58,851 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 211.8MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:05:58,854 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.66ms. Allocated memory is still 140.5MB. Free memory was 97.7MB in the beginning and 83.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.28ms. Allocated memory is still 140.5MB. Free memory was 83.8MB in the beginning and 81.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.86ms. Allocated memory is still 140.5MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 737.86ms. Allocated memory was 140.5MB in the beginning and 211.8MB in the end (delta: 71.3MB). Free memory was 79.7MB in the beginning and 173.7MB in the end (delta: -94.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1000.09ms. Allocated memory is still 211.8MB. Free memory was 173.7MB in the beginning and 141.3MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 211.8MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] unsigned char var_1_2 = 0; [L24] signed short int var_1_5 = 8; [L25] signed short int var_1_6 = -32; [L26] unsigned char var_1_7 = 100; [L27] signed long int var_1_8 = 32; [L28] float var_1_10 = 255.3; [L29] float var_1_13 = 2.8; [L30] signed long int last_1_var_1_8 = 32; [L86] isInitial = 1 [L87] FCALL initially() [L88] int k_loop; [L89] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L89] COND FALSE !(k_loop < 1) VAL [isInitial=1, k_loop=0, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L89] COND TRUE k_loop < 1 [L90] CALL updateLastVariables() [L79] last_1_var_1_8 = var_1_8 [L90] RET updateLastVariables() [L91] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=8, var_1_6=-32, var_1_7=100, var_1_8=32] [L64] var_1_5 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=-32, var_1_7=100, var_1_8=32] [L66] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=-32, var_1_7=100, var_1_8=32] [L67] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=-32, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=-32, var_1_7=100, var_1_8=32] [L68] var_1_6 = __VERIFIER_nondet_short() [L69] CALL assume_abort_if_not(var_1_6 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 >= -32768) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=100, var_1_8=32] [L70] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=100, var_1_8=32] [L71] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=100, var_1_8=32] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=100, var_1_8=32] [L72] var_1_7 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_8=32] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_8=32] [L74] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=-255, var_1_8=32] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_13=14/5, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=-255, var_1_8=32] [L75] var_1_13 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=-255, var_1_8=32] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2553/10, var_1_1=64, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=-255, var_1_8=32] [L91] RET updateVariables() [L92] CALL step() [L34] signed long int stepLocal_0 = (last_1_var_1_8 / var_1_5) % var_1_6; [L35] COND TRUE \read(var_1_2) [L36] COND TRUE last_1_var_1_8 > stepLocal_0 [L37] var_1_1 = var_1_7 [L42] unsigned char stepLocal_1 = var_1_1; [L43] COND TRUE stepLocal_1 < var_1_5 [L44] var_1_8 = (var_1_1 - ((((var_1_7) < (var_1_1)) ? (var_1_7) : (var_1_1)))) [L48] COND FALSE !(((var_1_6 * var_1_8) * var_1_7) <= (var_1_8 - var_1_1)) [L53] COND TRUE var_1_1 >= var_1_1 [L54] var_1_10 = var_1_13 [L92] RET step() [L93] CALL, EXPR property() [L82-L83] return ((var_1_2 ? ((last_1_var_1_8 > ((last_1_var_1_8 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) var_1_7)) : 1) : (var_1_1 == ((unsigned char) var_1_7))) && ((var_1_1 < var_1_5) ? (var_1_8 == ((signed long int) (var_1_1 - ((((var_1_7) < (var_1_1)) ? (var_1_7) : (var_1_1)))))) : (var_1_8 == ((signed long int) var_1_7)))) && ((((var_1_6 * var_1_8) * var_1_7) <= (var_1_8 - var_1_1)) ? ((var_1_5 <= (var_1_8 + var_1_8)) ? (var_1_10 == ((float) var_1_13)) : 1) : ((var_1_1 >= var_1_1) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_13)))) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2, var_1_13=2, var_1_1=-255, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=-255, var_1_8=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_8=32, var_1_10=2, var_1_13=2, var_1_1=-255, var_1_2=257, var_1_5=5, var_1_6=4, var_1_7=-255, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:05:58,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c9ac74b48c7165afb9f2b624d9d9a4575a37c69f2655e95ac9683bba5876265 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:06:01,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:06:01,637 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 07:06:01,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:06:01,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:06:01,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:06:01,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:06:01,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:06:01,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:06:01,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:06:01,691 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:06:01,692 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:06:01,692 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:06:01,694 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:06:01,696 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:06:01,697 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:06:01,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:06:01,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:06:01,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:06:01,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:06:01,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:06:01,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:06:01,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:06:01,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:06:01,705 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:06:01,705 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:06:01,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:06:01,706 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:06:01,706 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:06:01,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:06:01,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:06:01,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:06:01,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:06:01,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:06:01,710 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:06:01,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:06:01,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:06:01,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:06:01,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:06:01,711 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:06:01,712 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:06:01,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:06:01,714 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:06:01,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c9ac74b48c7165afb9f2b624d9d9a4575a37c69f2655e95ac9683bba5876265 [2024-11-09 07:06:02,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:06:02,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:06:02,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:06:02,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:06:02,181 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:06:02,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i Unable to find full path for "g++" [2024-11-09 07:06:04,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:06:04,850 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:06:04,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i [2024-11-09 07:06:04,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data/95152ea4b/7f571d8006604325b86489c674f0f92d/FLAGca8987c09 [2024-11-09 07:06:04,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/data/95152ea4b/7f571d8006604325b86489c674f0f92d [2024-11-09 07:06:04,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:06:04,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:06:04,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:04,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:06:04,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:06:04,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:04" (1/1) ... [2024-11-09 07:06:04,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60017cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:04, skipping insertion in model container [2024-11-09 07:06:04,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:04" (1/1) ... [2024-11-09 07:06:04,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:06:05,196 WARN L250 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_160e3b80-468b-4b20-ac0c-6ffd21f82172/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i[915,928] [2024-11-09 07:06:05,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:05,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:06:05,335 WARN L250 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_160e3b80-468b-4b20-ac0c-6ffd21f82172/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-30.i[915,928] [2024-11-09 07:06:05,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:05,404 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:06:05,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05 WrapperNode [2024-11-09 07:06:05,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:05,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:05,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:06:05,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:06:05,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,477 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-09 07:06:05,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:05,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:06:05,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:06:05,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:06:05,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,513 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:06:05,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:06:05,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:06:05,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:06:05,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (1/1) ... [2024-11-09 07:06:05,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:06:05,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:05,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:06:05,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:06:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:06:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:06:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:06:05,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:06:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:06:05,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:06:05,731 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:06:05,734 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:06:06,269 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 07:06:06,269 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:06:06,284 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:06:06,284 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:06:06,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:06 BoogieIcfgContainer [2024-11-09 07:06:06,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:06:06,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:06:06,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:06:06,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:06:06,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:06:04" (1/3) ... [2024-11-09 07:06:06,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cf59e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:06, skipping insertion in model container [2024-11-09 07:06:06,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:05" (2/3) ... [2024-11-09 07:06:06,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cf59e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:06, skipping insertion in model container [2024-11-09 07:06:06,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:06" (3/3) ... [2024-11-09 07:06:06,295 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-30.i [2024-11-09 07:06:06,316 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:06:06,317 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:06:06,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:06,391 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25a7d8b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:06,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:06:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:06:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:06:06,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:06,410 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:06,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:06,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:06,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1266141938, now seen corresponding path program 1 times [2024-11-09 07:06:06,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:06:06,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655017547] [2024-11-09 07:06:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:06,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:06,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:06:06,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:06:06,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 07:06:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:06,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:06:06,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 07:06:06,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:06:06,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:06:06,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655017547] [2024-11-09 07:06:06,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655017547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:06,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:06,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:06,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248854278] [2024-11-09 07:06:06,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:06,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:06:06,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:06:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:06:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:06:06,835 INFO L87 Difference]: Start difference. First operand has 43 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:06:06,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:06,863 INFO L93 Difference]: Finished difference Result 83 states and 132 transitions. [2024-11-09 07:06:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:06:06,865 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2024-11-09 07:06:06,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:06,873 INFO L225 Difference]: With dead ends: 83 [2024-11-09 07:06:06,874 INFO L226 Difference]: Without dead ends: 39 [2024-11-09 07:06:06,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:06:06,884 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:06,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:06:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-09 07:06:06,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-09 07:06:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 07:06:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2024-11-09 07:06:06,926 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 75 [2024-11-09 07:06:06,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:06,926 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2024-11-09 07:06:06,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:06:06,927 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2024-11-09 07:06:06,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:06:06,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:06,931 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:06,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 07:06:07,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:07,132 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:07,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:07,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2124328716, now seen corresponding path program 1 times [2024-11-09 07:06:07,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:06:07,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170948430] [2024-11-09 07:06:07,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:07,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:07,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:06:07,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:06:07,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 07:06:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:07,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:06:07,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:08,076 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-09 07:06:08,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:06:08,695 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:06:08,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170948430] [2024-11-09 07:06:08,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170948430] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:08,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:06:08,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-09 07:06:08,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988968071] [2024-11-09 07:06:08,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:08,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:08,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:06:08,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:08,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:06:08,703 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:06:09,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:09,914 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2024-11-09 07:06:09,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:06:09,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-09 07:06:09,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:09,918 INFO L225 Difference]: With dead ends: 138 [2024-11-09 07:06:09,919 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 07:06:09,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:06:09,921 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 85 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:09,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 156 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:06:09,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 07:06:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 59. [2024-11-09 07:06:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.255813953488372) internal successors, (54), 44 states have internal predecessors, (54), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:06:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2024-11-09 07:06:09,938 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 75 [2024-11-09 07:06:09,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:09,939 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2024-11-09 07:06:09,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:06:09,939 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2024-11-09 07:06:09,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:06:09,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:09,941 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:09,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 07:06:10,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:10,142 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:10,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:10,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2126175758, now seen corresponding path program 1 times [2024-11-09 07:06:10,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:06:10,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458783271] [2024-11-09 07:06:10,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:10,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:10,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:06:10,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:06:10,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 07:06:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:10,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:06:10,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-09 07:06:15,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:37,957 WARN L286 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 64 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:07:06,045 WARN L286 SmtUtils]: Spent 9.03s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:07:40,176 WARN L286 SmtUtils]: Spent 18.97s on a formula simplification. DAG size of input: 82 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:08:04,526 WARN L286 SmtUtils]: Spent 7.23s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:08:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:08:04,965 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:08:04,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458783271] [2024-11-09 07:08:04,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458783271] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:04,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:08:04,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2024-11-09 07:08:04,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908579418] [2024-11-09 07:08:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:04,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:08:04,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:08:04,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:08:04,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=245, Unknown=4, NotChecked=0, Total=306 [2024-11-09 07:08:04,969 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:09:17,727 WARN L286 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 150 DAG size of output: 224 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:09:20,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:22,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:24,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:26,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:28,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:32,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:33,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:36,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:38,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:41,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:50,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:52,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:09:59,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:00,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:02,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:04,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:35,611 WARN L286 SmtUtils]: Spent 24.08s on a formula simplification that was a NOOP. DAG size: 84 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:10:37,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:42,658 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_7~0)) (.cse35 ((_ zero_extend 24) c_~var_1_1~0))) (let ((.cse29 (bvneg .cse35)) (.cse36 (bvneg .cse3)) (.cse19 (= (_ bv0 8) c_~var_1_2~0))) (let ((.cse23 (not .cse19)) (.cse2 (bvadd .cse36 .cse35)) (.cse4 (bvadd .cse36 .cse35 .cse29)) (.cse25 (bvadd .cse35 .cse29)) (.cse32 (bvadd .cse35 (bvmul (_ bv2 32) .cse29))) (.cse0 ((_ sign_extend 16) c_~var_1_5~0))) (let ((.cse24 (bvslt .cse3 .cse35)) (.cse6 (bvslt .cse35 .cse0)) (.cse26 (= .cse35 .cse3)) (.cse30 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse40 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse40))) (not (bvsle (bvmul .cse3 (bvmul .cse40 .cse25)) .cse32)))))) (.cse1 (or (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse39 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse39))) (not (bvsle (bvmul (bvmul .cse2 .cse39) .cse3) .cse4))))) .cse19)) (.cse5 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse37 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse37) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse37))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse38 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse2 .cse38) .cse3) .cse4)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse38))))))) .cse23))) (let ((.cse10 (bvsle .cse0 (bvadd (bvmul (_ bv2 32) .cse35) (bvmul (_ bv2 32) .cse36)))) (.cse8 (let ((.cse33 (= .cse2 .cse3)) (.cse34 (and .cse1 .cse5))) (and (or .cse33 .cse34) (or (not .cse33) .cse34)))) (.cse11 (or (and (or .cse26 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse31 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul .cse3 (bvmul .cse31 .cse25)) .cse32)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse31)))))) (or .cse26 .cse30)) .cse23)) (.cse12 (or .cse26 .cse30 .cse19)) (.cse7 (not .cse6)) (.cse9 (not .cse24))) (and (or (not (bvslt ((_ zero_extend 24) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) .cse0)) (and (or (and (or (and .cse1 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul .cse2 ((_ sign_extend 16) ~var_1_6~0)) .cse3) .cse4))) .cse5) .cse6) (or .cse7 .cse8)) .cse9 .cse10) .cse11 .cse12)) (or .cse7 (and (or .cse9 .cse10 .cse8) .cse11 .cse12)) (or (let ((.cse21 (bvadd c_~var_1_8~0 .cse29))) (let ((.cse13 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 ((_ sign_extend 16) ~var_1_6~0)) .cse3) .cse21)))) (.cse18 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse28 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse28))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse28) .cse3) .cse21))))))) (and (or (let ((.cse14 (= c_~var_1_8~0 .cse3)) (.cse15 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse20 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse20) .cse3) .cse21)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse20))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse22 ((_ sign_extend 16) ~var_1_6~0))) (or (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse22))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse22) .cse3) .cse21)))))) .cse23)) (.cse16 (or .cse18 .cse19))) (and (or (and (or .cse13 .cse14) .cse15 .cse16) .cse6) (or .cse7 (let ((.cse17 (and .cse15 .cse16))) (and (or (not .cse14) .cse17) (or .cse13 (= c_~var_1_8~0 .cse2)) (or .cse14 .cse17)))))) .cse9) (or .cse24 (and (or .cse13 (= c_~var_1_8~0 .cse25)) (or .cse18 .cse26 .cse19) (or (and (or .cse26 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse27 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse27) .cse3) .cse21)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse0) .cse27)))))) (or .cse18 .cse26)) .cse23)))))) (bvsle .cse0 (bvmul (_ bv2 32) c_~var_1_8~0))))))))) is different from true [2024-11-09 07:10:44,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:46,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:48,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:51,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:54,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:55,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:10:57,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:00,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:01,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:04,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:06,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:08,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:10,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:12,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:14,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:17,114 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse22 ((_ zero_extend 24) c_~var_1_1~0)) (.cse20 ((_ zero_extend 24) c_~var_1_7~0))) (let ((.cse18 ((_ sign_extend 16) c_~var_1_5~0)) (.cse23 (bvneg .cse20)) (.cse31 (bvneg .cse22))) (let ((.cse13 (= (_ bv0 8) c_~var_1_2~0)) (.cse33 (bvadd .cse22 .cse31)) (.cse15 (bvslt .cse20 .cse22)) (.cse27 (bvadd .cse23 .cse22)) (.cse4 (= c_~var_1_8~0 .cse20)) (.cse2 (bvslt .cse22 .cse18))) (let ((.cse6 (not .cse2)) (.cse8 (not .cse4)) (.cse9 (= c_~var_1_8~0 .cse27)) (.cse14 (not .cse15)) (.cse17 (= c_~var_1_8~0 .cse33)) (.cse16 (= .cse22 .cse20)) (.cse12 (not .cse13)) (.cse21 (bvadd c_~var_1_8~0 .cse31)) (.cse0 (bvsle .cse18 (bvmul (_ bv2 32) c_~var_1_8~0)))) (and (or .cse0 (let ((.cse19 ((_ sign_extend 16) c_~var_1_6~0))) (let ((.cse10 (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse19)))) (.cse1 (bvsle (bvmul (bvmul c_~var_1_8~0 .cse19) .cse20) .cse21)) (.cse11 (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse19)))))) (and (or (let ((.cse3 (or .cse11 .cse13)) (.cse5 (or (and .cse10 .cse11) .cse12))) (and .cse1 (or .cse2 (and .cse3 .cse4 .cse5)) (or .cse6 (let ((.cse7 (and .cse3 .cse5))) (and (or .cse4 .cse7) (or .cse8 .cse7) .cse9))))) .cse14) (or .cse15 (and (or .cse12 (and (or .cse16 .cse11) (or .cse16 .cse10))) .cse1 .cse17 (or .cse16 .cse11 .cse13))))))) (or .cse6 (let ((.cse34 (bvadd .cse22 (bvmul (_ bv2 32) .cse31)))) (let ((.cse35 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse36 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse36))) (not (bvsle (bvmul .cse20 (bvmul .cse36 .cse33)) .cse34))))))) (and (or .cse14 (bvsle .cse18 (bvadd (bvmul (_ bv2 32) .cse22) (bvmul (_ bv2 32) .cse23))) (let ((.cse24 (= .cse27 .cse20)) (.cse25 (let ((.cse28 (bvadd .cse23 .cse22 .cse31))) (and (or (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse26 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse26))) (not (bvsle (bvmul (bvmul .cse27 .cse26) .cse20) .cse28))))) .cse13) (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse29 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse27 .cse29) .cse20) .cse28)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse29))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse30 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul .cse27 .cse30) .cse20) .cse28)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse30))))))) .cse12))))) (and (or .cse24 .cse25) (or (not .cse24) .cse25)))) (or (and (or .cse16 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse32 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul .cse20 (bvmul .cse32 .cse33)) .cse34)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse32)))))) (or .cse16 .cse35)) .cse12) (or .cse16 .cse35 .cse13))))) (or (let ((.cse37 (forall ((~var_1_6~0 (_ BitVec 16))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 ((_ sign_extend 16) ~var_1_6~0)) .cse20) .cse21)))) (.cse41 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse45 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse45))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse45) .cse20) .cse21))))))) (and (or (let ((.cse38 (or (and (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse42 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse42) .cse20) .cse21)) (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (not (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse42))))))) (forall ((~var_1_6~0 (_ BitVec 16))) (let ((.cse43 ((_ sign_extend 16) ~var_1_6~0))) (or (forall ((~last_1_var_1_8~0 (_ BitVec 32))) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse43))) (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse43) .cse20) .cse21)))))) .cse12)) (.cse39 (or .cse41 .cse13))) (and (or (and (or .cse37 .cse4) .cse38 .cse39) .cse2) (or .cse6 (let ((.cse40 (and .cse38 .cse39))) (and (or .cse8 .cse40) (or .cse37 .cse9) (or .cse4 .cse40)))))) .cse14) (or .cse15 (and (or .cse37 .cse17) (or .cse41 .cse16 .cse13) (or (and (or .cse16 (forall ((~var_1_6~0 (_ BitVec 16)) (~last_1_var_1_8~0 (_ BitVec 32))) (let ((.cse44 ((_ sign_extend 16) ~var_1_6~0))) (or (not (bvsle (bvmul (bvmul c_~var_1_8~0 .cse44) .cse20) .cse21)) (bvsgt ~last_1_var_1_8~0 (bvsrem (bvsdiv ~last_1_var_1_8~0 .cse18) .cse44)))))) (or .cse41 .cse16)) .cse12))))) .cse0)))))) is different from true [2024-11-09 07:11:20,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:23,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:11:26,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:11,293 WARN L286 SmtUtils]: Spent 37.70s on a formula simplification. DAG size of input: 96 DAG size of output: 127 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:12:12,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:13,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:15,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:17,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:20,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:35,693 WARN L286 SmtUtils]: Spent 7.28s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:12:36,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:40,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:42,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:44,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:45,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:48,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:50,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:12:52,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:13,283 WARN L286 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:13:14,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:16,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:18,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:21,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:22,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:24,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:26,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:28,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:30,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:32,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:34,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:36,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:38,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:40,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:43,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:44,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:50,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:52,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:53,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:55,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:13:59,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:14:00,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:14:01,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:14:04,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:14:06,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:14:08,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:14:09,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:09,894 INFO L93 Difference]: Finished difference Result 98 states and 120 transitions. [2024-11-09 07:14:09,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:14:09,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-09 07:14:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:09,928 INFO L225 Difference]: With dead ends: 98 [2024-11-09 07:14:09,928 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 07:14:09,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 267.6s TimeCoverageRelationStatistics Valid=95, Invalid=403, Unknown=16, NotChecked=86, Total=600 [2024-11-09 07:14:09,930 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 13 mSolverCounterUnsat, 38 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 166.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 38 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 177.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:09,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 302 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 221 Invalid, 38 Unknown, 23 Unchecked, 177.0s Time] [2024-11-09 07:14:09,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 07:14:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 62. [2024-11-09 07:14:09,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 47 states have internal predecessors, (57), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:14:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2024-11-09 07:14:09,947 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 75 [2024-11-09 07:14:09,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:09,948 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-11-09 07:14:09,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:14:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2024-11-09 07:14:09,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:14:09,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:09,951 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:14:09,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:14:10,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:14:10,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:10,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1934217204, now seen corresponding path program 1 times [2024-11-09 07:14:10,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:14:10,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362441118] [2024-11-09 07:14:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:10,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:14:10,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:14:10,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:14:10,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 07:14:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:14:10,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 07:14:10,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:14:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 07:14:19,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:14:19,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:14:19,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362441118] [2024-11-09 07:14:19,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362441118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:14:19,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:14:19,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 07:14:19,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820655041] [2024-11-09 07:14:19,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:14:19,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:14:19,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:14:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:14:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:14:19,165 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:14:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:28,953 INFO L93 Difference]: Finished difference Result 103 states and 127 transitions. [2024-11-09 07:14:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:14:28,954 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-09 07:14:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:28,956 INFO L225 Difference]: With dead ends: 103 [2024-11-09 07:14:28,956 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 07:14:28,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:14:28,958 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 106 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:28,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 208 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-09 07:14:28,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 07:14:28,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 70. [2024-11-09 07:14:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 54 states have internal predecessors, (66), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:14:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 92 transitions. [2024-11-09 07:14:28,980 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 92 transitions. Word has length 75 [2024-11-09 07:14:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:28,982 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 92 transitions. [2024-11-09 07:14:28,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:14:28,982 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 92 transitions. [2024-11-09 07:14:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:14:28,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:28,985 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:14:28,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 07:14:29,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:14:29,186 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:29,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:29,186 INFO L85 PathProgramCache]: Analyzing trace with hash -395631218, now seen corresponding path program 1 times [2024-11-09 07:14:29,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:14:29,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006408286] [2024-11-09 07:14:29,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:29,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:14:29,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:14:29,189 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:14:29,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 07:14:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:14:29,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 07:14:29,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:14:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 07:14:42,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:14:42,466 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:14:42,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006408286] [2024-11-09 07:14:42,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006408286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:14:42,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:14:42,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 07:14:42,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377898093] [2024-11-09 07:14:42,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:14:42,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:14:42,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:14:42,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:14:42,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:14:42,468 INFO L87 Difference]: Start difference. First operand 70 states and 92 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:14:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:56,394 INFO L93 Difference]: Finished difference Result 168 states and 215 transitions. [2024-11-09 07:14:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:14:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-09 07:14:56,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:56,402 INFO L225 Difference]: With dead ends: 168 [2024-11-09 07:14:56,402 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 07:14:56,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:14:56,404 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:56,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 224 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-09 07:14:56,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 07:14:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 72. [2024-11-09 07:14:56,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 56 states have internal predecessors, (69), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:14:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 95 transitions. [2024-11-09 07:14:56,425 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 95 transitions. Word has length 75 [2024-11-09 07:14:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:56,426 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 95 transitions. [2024-11-09 07:14:56,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:14:56,434 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2024-11-09 07:14:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:14:56,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:56,438 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:14:56,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:14:56,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:14:56,640 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:56,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:56,641 INFO L85 PathProgramCache]: Analyzing trace with hash -159209842, now seen corresponding path program 1 times [2024-11-09 07:14:56,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:14:56,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411629053] [2024-11-09 07:14:56,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:56,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:14:56,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:14:56,642 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:14:56,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160e3b80-468b-4b20-ac0c-6ffd21f82172/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 07:14:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:14:56,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 07:14:56,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:13,845 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 132 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-09 07:15:13,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:16:19,671 WARN L286 SmtUtils]: Spent 31.52s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:17:23,177 WARN L286 SmtUtils]: Spent 33.08s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:19,368 WARN L286 SmtUtils]: Spent 22.27s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:19:10,486 WARN L286 SmtUtils]: Spent 27.63s on a formula simplification. DAG size of input: 85 DAG size of output: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:19:45,152 WARN L286 SmtUtils]: Spent 10.20s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:20:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 07:20:00,886 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:20:00,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411629053] [2024-11-09 07:20:00,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411629053] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:20:00,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:20:00,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 26 [2024-11-09 07:20:00,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870825187] [2024-11-09 07:20:00,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:20:00,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:20:00,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:20:00,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:20:00,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=525, Unknown=9, NotChecked=0, Total=650 [2024-11-09 07:20:00,890 INFO L87 Difference]: Start difference. First operand 72 states and 95 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:20:03,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:20:05,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:20:15,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:20:19,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:20:22,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:20:31,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:20:34,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:20:48,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:21:02,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:21:06,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]