./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b717de627fe53ec561b9cf49e12e6cc849db2f0deb4cd9fc2a633f7b01ca897 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:16:25,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:16:25,521 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:16:25,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:16:25,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:16:25,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:16:25,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:16:25,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:16:25,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:16:25,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:16:25,553 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:16:25,553 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:16:25,554 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:16:25,554 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:16:25,555 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:16:25,555 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:16:25,556 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:16:25,556 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:16:25,557 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:16:25,557 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:16:25,558 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:16:25,558 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:16:25,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:16:25,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:16:25,560 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:16:25,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:16:25,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:16:25,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:16:25,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:16:25,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:16:25,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:16:25,563 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:16:25,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:16:25,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:16:25,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:16:25,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:16:25,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:16:25,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:25,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:16:25,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:16:25,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:16:25,565 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:16:25,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:16:25,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:16:25,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:16:25,566 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:16:25,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:16:25,566 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_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b717de627fe53ec561b9cf49e12e6cc849db2f0deb4cd9fc2a633f7b01ca897 [2023-12-02 13:16:25,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:16:25,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:16:25,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:16:25,797 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:16:25,797 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:16:25,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i [2023-12-02 13:16:28,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:16:28,707 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:16:28,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i [2023-12-02 13:16:28,717 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data/b78966dde/57b4f721572749d1a33bd67ef45b006d/FLAG215077af4 [2023-12-02 13:16:28,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data/b78966dde/57b4f721572749d1a33bd67ef45b006d [2023-12-02 13:16:28,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:16:28,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:16:28,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:28,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:16:28,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:16:28,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:28" (1/1) ... [2023-12-02 13:16:28,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1522327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:28, skipping insertion in model container [2023-12-02 13:16:28,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:28" (1/1) ... [2023-12-02 13:16:28,773 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:16:28,896 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i[913,926] [2023-12-02 13:16:28,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:28,961 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:16:28,971 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i[913,926] [2023-12-02 13:16:29,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:29,016 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:16:29,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29 WrapperNode [2023-12-02 13:16:29,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:29,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:29,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:16:29,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:16:29,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,064 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 170 [2023-12-02 13:16:29,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:29,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:16:29,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:16:29,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:16:29,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:16:29,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:16:29,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:16:29,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:16:29,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (1/1) ... [2023-12-02 13:16:29,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:29,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:29,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:16:29,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:16:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:16:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:16:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:16:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:16:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:16:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:16:29,240 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:16:29,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:16:29,578 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:16:29,834 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:16:29,834 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:16:29,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:29 BoogieIcfgContainer [2023-12-02 13:16:29,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:16:29,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:16:29,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:16:29,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:16:29,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:16:28" (1/3) ... [2023-12-02 13:16:29,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b749c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:16:29, skipping insertion in model container [2023-12-02 13:16:29,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:29" (2/3) ... [2023-12-02 13:16:29,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b749c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:16:29, skipping insertion in model container [2023-12-02 13:16:29,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:29" (3/3) ... [2023-12-02 13:16:29,844 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-53.i [2023-12-02 13:16:29,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:16:29,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:16:29,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:16:29,905 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c524d7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:16:29,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:16:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 13:16:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 13:16:29,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:29,918 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:29,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:29,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:29,923 INFO L85 PathProgramCache]: Analyzing trace with hash -826091541, now seen corresponding path program 1 times [2023-12-02 13:16:29,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740157289] [2023-12-02 13:16:29,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:29,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:30,061 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:16:30,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008922029] [2023-12-02 13:16:30,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:30,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:16:30,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:30,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:16:30,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:16:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:16:30,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:16:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:16:30,764 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:16:30,766 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:16:30,768 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:16:30,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:16:30,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 13:16:30,974 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:16:30,978 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:16:31,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:16:31 BoogieIcfgContainer [2023-12-02 13:16:31,052 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:16:31,052 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:16:31,052 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:16:31,053 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:16:31,053 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:29" (3/4) ... [2023-12-02 13:16:31,055 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:16:31,055 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:16:31,056 INFO L158 Benchmark]: Toolchain (without parser) took 2320.37ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 111.6MB in the beginning and 111.1MB in the end (delta: 547.9kB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2023-12-02 13:16:31,057 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:16:31,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.98ms. Allocated memory is still 159.4MB. Free memory was 111.6MB in the beginning and 98.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:16:31,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.03ms. Allocated memory is still 159.4MB. Free memory was 97.9MB in the beginning and 94.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:16:31,059 INFO L158 Benchmark]: Boogie Preprocessor took 35.66ms. Allocated memory is still 159.4MB. Free memory was 94.4MB in the beginning and 92.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:16:31,060 INFO L158 Benchmark]: RCFGBuilder took 734.24ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 92.8MB in the beginning and 150.9MB in the end (delta: -58.2MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2023-12-02 13:16:31,060 INFO L158 Benchmark]: TraceAbstraction took 1213.11ms. Allocated memory is still 220.2MB. Free memory was 150.9MB in the beginning and 111.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-02 13:16:31,061 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 220.2MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:16:31,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.98ms. Allocated memory is still 159.4MB. Free memory was 111.6MB in the beginning and 98.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.03ms. Allocated memory is still 159.4MB. Free memory was 97.9MB in the beginning and 94.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.66ms. Allocated memory is still 159.4MB. Free memory was 94.4MB in the beginning and 92.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 734.24ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 92.8MB in the beginning and 150.9MB in the end (delta: -58.2MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1213.11ms. Allocated memory is still 220.2MB. Free memory was 150.9MB in the beginning and 111.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 220.2MB. Free memory is still 111.1MB. 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 61, overapproximation of shiftLeft at line 55, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 61, overapproximation of someUnaryFLOAToperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_8 = 0; [L24] unsigned long int var_1_9 = 10; [L25] float var_1_10 = 99.5; [L26] float var_1_11 = 5.6; [L27] float var_1_12 = 255.5; [L28] float var_1_13 = 31.25; [L29] signed short int var_1_14 = 32; [L30] unsigned long int var_1_15 = 16; [L31] unsigned char var_1_16 = 1; [L32] unsigned char var_1_17 = 5; [L33] unsigned char var_1_18 = 50; [L34] unsigned char var_1_19 = 50; [L35] signed char var_1_20 = 1; [L36] signed char var_1_21 = -10; [L37] float var_1_22 = 0.5; [L38] signed char var_1_23 = 100; [L39] unsigned char last_1_var_1_1 = 0; [L40] unsigned long int last_1_var_1_9 = 10; [L41] signed short int last_1_var_1_14 = 32; [L42] unsigned char last_1_var_1_16 = 1; [L43] signed char last_1_var_1_20 = 1; [L129] isInitial = 1 [L130] FCALL initially() [L131] COND TRUE 1 [L132] CALL updateLastVariables() [L118] last_1_var_1_1 = var_1_1 [L119] last_1_var_1_9 = var_1_9 [L120] last_1_var_1_14 = var_1_14 [L121] last_1_var_1_16 = var_1_16 [L122] last_1_var_1_20 = var_1_20 [L132] RET updateLastVariables() [L133] CALL updateVariables() [L90] var_1_8 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_8 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_8 >= 1) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L92] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_11=28/5, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L93] var_1_11 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_12=511/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L95] var_1_12 = __VERIFIER_nondet_float() [L96] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_13=125/4, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L97] var_1_13 = __VERIFIER_nondet_float() [L98] 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_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L98] 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_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=16, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L99] var_1_15 = __VERIFIER_nondet_ulong() [L100] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L101] CALL assume_abort_if_not(var_1_15 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_15 <= 4294967295) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L102] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=5, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L103] var_1_17 = __VERIFIER_nondet_uchar() [L104] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L105] CALL assume_abort_if_not(var_1_17 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_17 <= 255) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L106] CALL assume_abort_if_not(var_1_17 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_17 != 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=50, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L107] var_1_18 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L109] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=50, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L110] var_1_19 = __VERIFIER_nondet_uchar() [L111] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L112] CALL assume_abort_if_not(var_1_19 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_19 <= 254) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=1, var_1_21=-10, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L113] var_1_21 = __VERIFIER_nondet_char() [L114] CALL assume_abort_if_not(var_1_21 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=1, var_1_21=-1, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_21 >= -127) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=1, var_1_21=-1, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L115] CALL assume_abort_if_not(var_1_21 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=1, var_1_21=-1, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_21 <= 126) VAL [isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=199/2, var_1_14=32, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=1, var_1_21=-1, var_1_22=1/2, var_1_23=100, var_1_8=1, var_1_9=10] [L133] RET updateVariables() [L134] CALL step() [L47] unsigned char stepLocal_1 = last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16); [L48] signed long int stepLocal_0 = last_1_var_1_20 * last_1_var_1_20; [L49] COND FALSE !(stepLocal_0 == last_1_var_1_14) [L54] unsigned long int stepLocal_6 = ((((var_1_15) > (last_1_var_1_9)) ? (var_1_15) : (last_1_var_1_9))) / var_1_17; [L55] EXPR 256u << last_1_var_1_16 [L55] COND TRUE stepLocal_6 <= (256u << last_1_var_1_16) [L56] var_1_16 = ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))) [L58] unsigned char stepLocal_5 = var_1_16 != var_1_16; [L59] unsigned char stepLocal_4 = var_1_8; [L60] COND TRUE (! var_1_1) || stepLocal_4 [L61] var_1_10 = (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))) [L69] var_1_20 = var_1_21 [L70] var_1_22 = var_1_12 [L71] var_1_23 = var_1_21 [L72] COND FALSE !(\read(var_1_1)) [L75] EXPR (var_1_16 / var_1_15) & var_1_16 [L75] COND FALSE !(((var_1_16 / var_1_15) & var_1_16) >= var_1_20) [L78] var_1_14 = -128 [L81] unsigned char stepLocal_3 = var_1_20 != var_1_14; [L82] signed long int stepLocal_2 = (((var_1_16) < (0)) ? (var_1_16) : (0)); [L83] COND TRUE (var_1_1 || (var_1_16 <= var_1_14)) || stepLocal_3 [L84] COND FALSE !(stepLocal_2 <= (-5 + var_1_16)) [L134] RET step() [L135] CALL, EXPR property() [L125] EXPR (((((last_1_var_1_20 * last_1_var_1_20) == last_1_var_1_14) ? (((last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16)) && last_1_var_1_1) ? (var_1_1 == ((unsigned char) var_1_8)) : 1) : 1) && (((var_1_1 || (var_1_16 <= var_1_14)) || (var_1_20 != var_1_14)) ? ((((((var_1_16) < (0)) ? (var_1_16) : (0))) <= (-5 + var_1_16)) ? (var_1_9 == ((unsigned long int) var_1_16)) : 1) : 1)) && (((! var_1_1) || var_1_8) ? (var_1_10 == ((float) (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))))) : (((var_1_11 < var_1_12) || (var_1_16 != var_1_16)) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_12))))) && (var_1_1 ? (var_1_14 == ((signed short int) ((((var_1_23) > (var_1_16)) ? (var_1_23) : (var_1_16))))) : ((((var_1_16 / var_1_15) & var_1_16) >= var_1_20) ? (var_1_14 == ((signed short int) var_1_16)) : (var_1_14 == ((signed short int) -128)))) [L125] EXPR ((((((last_1_var_1_20 * last_1_var_1_20) == last_1_var_1_14) ? (((last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16)) && last_1_var_1_1) ? (var_1_1 == ((unsigned char) var_1_8)) : 1) : 1) && (((var_1_1 || (var_1_16 <= var_1_14)) || (var_1_20 != var_1_14)) ? ((((((var_1_16) < (0)) ? (var_1_16) : (0))) <= (-5 + var_1_16)) ? (var_1_9 == ((unsigned long int) var_1_16)) : 1) : 1)) && (((! var_1_1) || var_1_8) ? (var_1_10 == ((float) (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))))) : (((var_1_11 < var_1_12) || (var_1_16 != var_1_16)) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_12))))) && (var_1_1 ? (var_1_14 == ((signed short int) ((((var_1_23) > (var_1_16)) ? (var_1_23) : (var_1_16))))) : ((((var_1_16 / var_1_15) & var_1_16) >= var_1_20) ? (var_1_14 == ((signed short int) var_1_16)) : (var_1_14 == ((signed short int) -128))))) && (((((((var_1_15) > (last_1_var_1_9)) ? (var_1_15) : (last_1_var_1_9))) / var_1_17) <= (256u << last_1_var_1_16)) ? (var_1_16 == ((unsigned char) ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))) : 1) [L125-L126] return (((((((((last_1_var_1_20 * last_1_var_1_20) == last_1_var_1_14) ? (((last_1_var_1_14 > (last_1_var_1_16 - last_1_var_1_16)) && last_1_var_1_1) ? (var_1_1 == ((unsigned char) var_1_8)) : 1) : 1) && (((var_1_1 || (var_1_16 <= var_1_14)) || (var_1_20 != var_1_14)) ? ((((((var_1_16) < (0)) ? (var_1_16) : (0))) <= (-5 + var_1_16)) ? (var_1_9 == ((unsigned long int) var_1_16)) : 1) : 1)) && (((! var_1_1) || var_1_8) ? (var_1_10 == ((float) (((((var_1_11 + var_1_12)) < (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? ((var_1_11 + var_1_12)) : (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))))))) : (((var_1_11 < var_1_12) || (var_1_16 != var_1_16)) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_12))))) && (var_1_1 ? (var_1_14 == ((signed short int) ((((var_1_23) > (var_1_16)) ? (var_1_23) : (var_1_16))))) : ((((var_1_16 / var_1_15) & var_1_16) >= var_1_20) ? (var_1_14 == ((signed short int) var_1_16)) : (var_1_14 == ((signed short int) -128))))) && (((((((var_1_15) > (last_1_var_1_9)) ? (var_1_15) : (last_1_var_1_9))) / var_1_17) <= (256u << last_1_var_1_16)) ? (var_1_16 == ((unsigned char) ((((var_1_18) > (var_1_19)) ? (var_1_18) : (var_1_19))))) : 1)) && (var_1_20 == ((signed char) var_1_21))) && (var_1_22 == ((float) var_1_12))) && (var_1_23 == ((signed char) var_1_21)) ; [L135] RET, EXPR property() [L135] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=3, var_1_12=2, var_1_13=0, var_1_14=-128, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=-1, var_1_21=-1, var_1_22=2, var_1_23=-1, var_1_8=1, var_1_9=10] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=32, last_1_var_1_16=1, last_1_var_1_1=0, last_1_var_1_20=1, last_1_var_1_9=10, var_1_10=3, var_1_12=2, var_1_13=0, var_1_14=-128, var_1_15=1, var_1_16=1, var_1_17=10, var_1_18=1, var_1_19=1, var_1_1=0, var_1_20=-1, var_1_21=-1, var_1_22=2, var_1_23=-1, var_1_8=1, var_1_9=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 17, 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=35occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 13:16:31,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b717de627fe53ec561b9cf49e12e6cc849db2f0deb4cd9fc2a633f7b01ca897 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:16:32,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:16:33,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:16:33,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:16:33,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:16:33,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:16:33,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:16:33,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:16:33,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:16:33,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:16:33,078 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:16:33,079 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:16:33,079 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:16:33,080 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:16:33,080 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:16:33,081 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:16:33,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:16:33,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:16:33,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:16:33,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:16:33,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:16:33,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:16:33,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:16:33,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:16:33,086 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:16:33,086 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:16:33,087 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:16:33,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:16:33,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:16:33,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:16:33,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:16:33,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:16:33,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:16:33,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:16:33,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:33,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:16:33,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:16:33,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:16:33,091 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:16:33,091 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:16:33,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:16:33,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:16:33,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:16:33,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:16:33,092 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b717de627fe53ec561b9cf49e12e6cc849db2f0deb4cd9fc2a633f7b01ca897 [2023-12-02 13:16:33,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:16:33,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:16:33,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:16:33,395 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:16:33,395 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:16:33,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i [2023-12-02 13:16:36,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:16:36,381 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:16:36,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i [2023-12-02 13:16:36,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data/99e37150c/52e92d87845b43dea69904f0cd66d529/FLAG1399059ed [2023-12-02 13:16:36,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/data/99e37150c/52e92d87845b43dea69904f0cd66d529 [2023-12-02 13:16:36,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:16:36,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:16:36,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:36,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:16:36,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:16:36,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@504540e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36, skipping insertion in model container [2023-12-02 13:16:36,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,449 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:16:36,599 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i[913,926] [2023-12-02 13:16:36,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:36,667 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:16:36,680 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-53.i[913,926] [2023-12-02 13:16:36,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:36,729 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:16:36,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36 WrapperNode [2023-12-02 13:16:36,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:36,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:36,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:16:36,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:16:36,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,778 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-12-02 13:16:36,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:36,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:16:36,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:16:36,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:16:36,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:16:36,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:16:36,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:16:36,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:16:36,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (1/1) ... [2023-12-02 13:16:36,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:36,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:36,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:16:36,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:16:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:16:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:16:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:16:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:16:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:16:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:16:36,969 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:16:36,972 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:16:37,659 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:16:37,703 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:16:37,703 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:16:37,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:37 BoogieIcfgContainer [2023-12-02 13:16:37,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:16:37,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:16:37,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:16:37,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:16:37,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:16:36" (1/3) ... [2023-12-02 13:16:37,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13871374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:16:37, skipping insertion in model container [2023-12-02 13:16:37,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:36" (2/3) ... [2023-12-02 13:16:37,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13871374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:16:37, skipping insertion in model container [2023-12-02 13:16:37,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:37" (3/3) ... [2023-12-02 13:16:37,712 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-53.i [2023-12-02 13:16:37,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:16:37,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:16:37,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:16:37,771 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@75250769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:16:37,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:16:37,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 13:16:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 13:16:37,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:37,787 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:37,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:37,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:37,792 INFO L85 PathProgramCache]: Analyzing trace with hash 130413106, now seen corresponding path program 1 times [2023-12-02 13:16:37,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:16:37,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127293922] [2023-12-02 13:16:37,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:37,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:37,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:16:37,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:16:37,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 13:16:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:38,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 13:16:38,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-12-02 13:16:38,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:16:38,128 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:16:38,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127293922] [2023-12-02 13:16:38,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127293922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:38,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:38,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:16:38,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588443187] [2023-12-02 13:16:38,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:38,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:16:38,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:16:38,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:16:38,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:16:38,167 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 13:16:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:38,377 INFO L93 Difference]: Finished difference Result 101 states and 175 transitions. [2023-12-02 13:16:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:16:38,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-12-02 13:16:38,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:38,394 INFO L225 Difference]: With dead ends: 101 [2023-12-02 13:16:38,394 INFO L226 Difference]: Without dead ends: 50 [2023-12-02 13:16:38,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:16:38,399 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:38,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:16:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-02 13:16:38,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-02 13:16:38,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 13:16:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 75 transitions. [2023-12-02 13:16:38,446 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 75 transitions. Word has length 108 [2023-12-02 13:16:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:38,447 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 75 transitions. [2023-12-02 13:16:38,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 13:16:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2023-12-02 13:16:38,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 13:16:38,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:38,450 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:38,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:16:38,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:38,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:38,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1221391556, now seen corresponding path program 1 times [2023-12-02 13:16:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:16:38,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778865942] [2023-12-02 13:16:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:38,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:38,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:16:38,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:16:38,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 13:16:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:38,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:16:38,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-02 13:16:38,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:16:38,912 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:16:38,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778865942] [2023-12-02 13:16:38,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778865942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:38,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:38,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:16:38,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470446089] [2023-12-02 13:16:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:38,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:16:38,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:16:38,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:16:38,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:16:38,916 INFO L87 Difference]: Start difference. First operand 50 states and 75 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 13:16:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:39,301 INFO L93 Difference]: Finished difference Result 146 states and 219 transitions. [2023-12-02 13:16:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:16:39,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-12-02 13:16:39,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:39,305 INFO L225 Difference]: With dead ends: 146 [2023-12-02 13:16:39,305 INFO L226 Difference]: Without dead ends: 97 [2023-12-02 13:16:39,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:16:39,307 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 66 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:39,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 189 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:16:39,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-02 13:16:39,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2023-12-02 13:16:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 58 states have internal predecessors, (74), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-02 13:16:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 142 transitions. [2023-12-02 13:16:39,332 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 142 transitions. Word has length 108 [2023-12-02 13:16:39,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:39,333 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 142 transitions. [2023-12-02 13:16:39,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 13:16:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 142 transitions. [2023-12-02 13:16:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 13:16:39,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:39,336 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:39,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-02 13:16:39,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:39,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:39,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:39,538 INFO L85 PathProgramCache]: Analyzing trace with hash 782034352, now seen corresponding path program 1 times [2023-12-02 13:16:39,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:16:39,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628686311] [2023-12-02 13:16:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:39,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:39,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:16:39,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:16:39,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 13:16:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:39,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:16:39,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-02 13:16:40,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:16:40,071 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:16:40,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628686311] [2023-12-02 13:16:40,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628686311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:40,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:40,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:16:40,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061444332] [2023-12-02 13:16:40,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:40,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:16:40,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:16:40,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:16:40,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:16:40,074 INFO L87 Difference]: Start difference. First operand 95 states and 142 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 13:16:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:40,445 INFO L93 Difference]: Finished difference Result 197 states and 293 transitions. [2023-12-02 13:16:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:16:40,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-12-02 13:16:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:40,448 INFO L225 Difference]: With dead ends: 197 [2023-12-02 13:16:40,448 INFO L226 Difference]: Without dead ends: 103 [2023-12-02 13:16:40,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:16:40,451 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 16 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:40,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 131 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:16:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-02 13:16:40,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2023-12-02 13:16:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.265625) internal successors, (81), 64 states have internal predecessors, (81), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-02 13:16:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 149 transitions. [2023-12-02 13:16:40,471 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 149 transitions. Word has length 109 [2023-12-02 13:16:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:40,472 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 149 transitions. [2023-12-02 13:16:40,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 13:16:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 149 transitions. [2023-12-02 13:16:40,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 13:16:40,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:40,474 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:40,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-02 13:16:40,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:40,680 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:40,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1855063794, now seen corresponding path program 1 times [2023-12-02 13:16:40,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:16:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994793560] [2023-12-02 13:16:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:40,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:40,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:16:40,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:16:40,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 13:16:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:40,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:16:40,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-02 13:16:40,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:16:40,976 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:16:40,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994793560] [2023-12-02 13:16:40,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994793560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:40,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:40,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:16:40,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580283698] [2023-12-02 13:16:40,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:40,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:16:40,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:16:40,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:16:40,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:16:40,979 INFO L87 Difference]: Start difference. First operand 101 states and 149 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 13:16:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:41,546 INFO L93 Difference]: Finished difference Result 258 states and 380 transitions. [2023-12-02 13:16:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:16:41,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-12-02 13:16:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:41,550 INFO L225 Difference]: With dead ends: 258 [2023-12-02 13:16:41,550 INFO L226 Difference]: Without dead ends: 158 [2023-12-02 13:16:41,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:16:41,552 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 68 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:41,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 195 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 13:16:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-02 13:16:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 103. [2023-12-02 13:16:41,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2575757575757576) internal successors, (83), 66 states have internal predecessors, (83), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-02 13:16:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 151 transitions. [2023-12-02 13:16:41,580 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 151 transitions. Word has length 109 [2023-12-02 13:16:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:41,581 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 151 transitions. [2023-12-02 13:16:41,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 13:16:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 151 transitions. [2023-12-02 13:16:41,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 13:16:41,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:41,584 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:41,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-02 13:16:41,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:41,792 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:41,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1797805492, now seen corresponding path program 1 times [2023-12-02 13:16:41,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:16:41,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397994771] [2023-12-02 13:16:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:41,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:41,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:16:41,796 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:16:41,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 13:16:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:42,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 13:16:42,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 13:16:42,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:16:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 13:16:42,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:16:42,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397994771] [2023-12-02 13:16:42,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397994771] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:16:42,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1793130013] [2023-12-02 13:16:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:42,378 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:16:42,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:16:42,380 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:16:42,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 13:16:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:42,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 13:16:42,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 13:16:43,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:16:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 13:16:43,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1793130013] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:16:43,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365501990] [2023-12-02 13:16:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:43,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:16:43,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:43,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:16:43,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 13:16:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:43,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 13:16:43,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:43,415 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 13:16:43,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:16:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 13:16:43,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365501990] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:16:43,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:16:43,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 12 [2023-12-02 13:16:43,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677371256] [2023-12-02 13:16:43,566 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:16:43,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 13:16:43,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:16:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 13:16:43,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-02 13:16:43,568 INFO L87 Difference]: Start difference. First operand 103 states and 151 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 13:16:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:45,268 INFO L93 Difference]: Finished difference Result 329 states and 468 transitions. [2023-12-02 13:16:45,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:16:45,270 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 109 [2023-12-02 13:16:45,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:45,273 INFO L225 Difference]: With dead ends: 329 [2023-12-02 13:16:45,273 INFO L226 Difference]: Without dead ends: 227 [2023-12-02 13:16:45,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 638 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2023-12-02 13:16:45,275 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 238 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:45,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 457 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 13:16:45,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-02 13:16:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 109. [2023-12-02 13:16:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 70 states have internal predecessors, (86), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-02 13:16:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 154 transitions. [2023-12-02 13:16:45,301 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 154 transitions. Word has length 109 [2023-12-02 13:16:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:45,302 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 154 transitions. [2023-12-02 13:16:45,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 13:16:45,302 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 154 transitions. [2023-12-02 13:16:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 13:16:45,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:45,304 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:45,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 13:16:45,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-02 13:16:45,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 13:16:45,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:16:45,907 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:45,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1681935842, now seen corresponding path program 1 times [2023-12-02 13:16:45,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:16:45,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397830892] [2023-12-02 13:16:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:45,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:16:45,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:16:45,909 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:16:45,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a5f75bb-9322-4e8a-9394-0bfcc69dbb36/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 13:16:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:46,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 13:16:46,117 INFO L285 TraceCheckSpWp]: Computing forward predicates...