./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.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_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:40:11,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:40:11,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:40:11,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:40:11,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:40:11,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:40:11,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:40:11,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:40:11,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:40:11,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:40:11,799 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:40:11,799 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:40:11,800 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:40:11,801 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:40:11,801 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:40:11,802 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:40:11,802 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:40:11,803 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:40:11,803 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:40:11,804 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:40:11,813 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:40:11,814 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:40:11,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:40:11,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:40:11,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:40:11,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:40:11,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:40:11,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:40:11,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:40:11,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:40:11,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:40:11,819 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:40:11,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:40:11,819 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:40:11,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:40:11,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:40:11,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:40:11,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:40:11,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:40:11,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:40:11,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:40:11,821 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:40:11,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:40:11,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:40:11,822 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:40:11,822 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:40:11,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:40:11,822 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_fe56a359-0850-4071-bba7-c0b5f71a76e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 [2023-12-02 19:40:12,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:40:12,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:40:12,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:40:12,087 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:40:12,088 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:40:12,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2023-12-02 19:40:14,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:40:15,154 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:40:15,154 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2023-12-02 19:40:15,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data/88674084f/1b2687153e234323a1fadfbc55462663/FLAG3c27faf95 [2023-12-02 19:40:15,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data/88674084f/1b2687153e234323a1fadfbc55462663 [2023-12-02 19:40:15,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:40:15,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:40:15,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:40:15,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:40:15,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:40:15,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d5a3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15, skipping insertion in model container [2023-12-02 19:40:15,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,208 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:40:15,336 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_fe56a359-0850-4071-bba7-c0b5f71a76e8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2023-12-02 19:40:15,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:40:15,377 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:40:15,388 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_fe56a359-0850-4071-bba7-c0b5f71a76e8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2023-12-02 19:40:15,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:40:15,417 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:40:15,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15 WrapperNode [2023-12-02 19:40:15,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:40:15,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:40:15,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:40:15,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:40:15,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,457 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-12-02 19:40:15,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:40:15,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:40:15,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:40:15,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:40:15,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:40:15,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:40:15,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:40:15,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:40:15,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (1/1) ... [2023-12-02 19:40:15,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:40:15,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:40:15,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:40:15,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:40:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:40:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:40:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:40:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:40:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:40:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:40:15,615 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:40:15,617 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:40:15,771 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:40:15,829 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:40:15,829 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:40:15,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:15 BoogieIcfgContainer [2023-12-02 19:40:15,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:40:15,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:40:15,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:40:15,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:40:15,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:40:15" (1/3) ... [2023-12-02 19:40:15,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24867583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:40:15, skipping insertion in model container [2023-12-02 19:40:15,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:15" (2/3) ... [2023-12-02 19:40:15,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24867583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:40:15, skipping insertion in model container [2023-12-02 19:40:15,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:15" (3/3) ... [2023-12-02 19:40:15,840 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-95.i [2023-12-02 19:40:15,859 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:40:15,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:40:15,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:40:15,902 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;@6b7eaff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:40:15,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:40:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 19:40:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 19:40:15,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:15,914 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:40:15,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:40:15,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1867196650, now seen corresponding path program 1 times [2023-12-02 19:40:15,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:40:15,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260378890] [2023-12-02 19:40:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:15,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:40:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:40:16,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:40:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:40:16,204 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 19:40:16,206 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:40:16,207 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 19:40:16,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:40:16,213 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:40:16,217 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:40:16,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:40:16 BoogieIcfgContainer [2023-12-02 19:40:16,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:40:16,259 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:40:16,259 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:40:16,259 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:40:16,260 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:15" (3/4) ... [2023-12-02 19:40:16,262 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:40:16,263 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:40:16,264 INFO L158 Benchmark]: Toolchain (without parser) took 1084.34ms. Allocated memory is still 165.7MB. Free memory was 136.0MB in the beginning and 83.5MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-12-02 19:40:16,264 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:40:16,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.39ms. Allocated memory is still 165.7MB. Free memory was 135.4MB in the beginning and 124.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 19:40:16,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.16ms. Allocated memory is still 165.7MB. Free memory was 123.9MB in the beginning and 122.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:40:16,266 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 121.3MB in the end (delta: 934.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:40:16,267 INFO L158 Benchmark]: RCFGBuilder took 344.80ms. Allocated memory is still 165.7MB. Free memory was 120.8MB in the beginning and 106.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 19:40:16,267 INFO L158 Benchmark]: TraceAbstraction took 424.94ms. Allocated memory is still 165.7MB. Free memory was 105.6MB in the beginning and 84.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 19:40:16,268 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 165.7MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:40:16,271 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 123.7MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.39ms. Allocated memory is still 165.7MB. Free memory was 135.4MB in the beginning and 124.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.16ms. Allocated memory is still 165.7MB. Free memory was 123.9MB in the beginning and 122.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 121.3MB in the end (delta: 934.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 344.80ms. Allocated memory is still 165.7MB. Free memory was 120.8MB in the beginning and 106.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 424.94ms. Allocated memory is still 165.7MB. Free memory was 105.6MB in the beginning and 84.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 165.7MB. Free memory is still 84.1MB. 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 someBinaryDOUBLEComparisonOperation at line 36, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.5; [L23] double var_1_2 = 9.4; [L24] double var_1_3 = 7.8; [L25] double var_1_4 = 127.84; [L26] double var_1_5 = 999999999.5; [L27] double var_1_6 = 0.0; [L28] double var_1_7 = 9999999.8; [L29] unsigned short int var_1_8 = 10; [L30] unsigned short int var_1_9 = 5; [L31] signed char var_1_10 = 4; [L32] signed char var_1_11 = -16; [L71] isInitial = 1 [L72] FCALL initially() [L73] COND TRUE 1 [L74] FCALL updateLastVariables() [L75] CALL updateVariables() [L45] var_1_2 = __VERIFIER_nondet_double() [L46] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L47] var_1_3 = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L49] var_1_4 = __VERIFIER_nondet_double() [L50] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L51] var_1_5 = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L53] var_1_6 = __VERIFIER_nondet_double() [L54] CALL assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L55] var_1_7 = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L57] var_1_9 = __VERIFIER_nondet_ushort() [L58] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L59] CALL assume_abort_if_not(var_1_9 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=65534] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(var_1_9 <= 65534) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=65534] [L60] var_1_11 = __VERIFIER_nondet_char() [L61] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=65534] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=65534] [L62] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=65534] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=65534] [L75] RET updateVariables() [L76] CALL step() [L36] COND FALSE !(var_1_2 < (var_1_3 - 9.108)) [L39] var_1_1 = ((var_1_6 - var_1_7) - 32.925) [L41] var_1_8 = var_1_9 [L42] var_1_10 = var_1_11 [L76] RET step() [L77] CALL, EXPR property() [L67-L68] return (((var_1_2 < (var_1_3 - 9.108)) ? (var_1_1 == ((double) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : (var_1_1 == ((double) ((var_1_6 - var_1_7) - 32.925)))) && (var_1_8 == ((unsigned short int) var_1_9))) && (var_1_10 == ((signed char) var_1_11)) ; [L77] RET, EXPR property() [L77] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=65534, var_1_9=65534] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=65534, var_1_9=65534] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 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 19:40:16,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:40:18,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:40:18,302 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 19:40:18,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:40:18,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:40:18,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:40:18,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:40:18,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:40:18,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:40:18,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:40:18,341 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:40:18,341 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:40:18,342 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:40:18,342 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:40:18,343 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:40:18,343 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:40:18,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:40:18,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:40:18,345 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:40:18,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:40:18,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:40:18,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:40:18,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:40:18,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:40:18,348 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:40:18,348 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 19:40:18,349 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 19:40:18,349 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:40:18,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:40:18,350 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:40:18,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:40:18,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 19:40:18,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:40:18,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:40:18,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:40:18,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:40:18,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:40:18,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:40:18,353 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 19:40:18,353 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 19:40:18,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:40:18,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:40:18,354 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:40:18,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:40:18,354 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_fe56a359-0850-4071-bba7-c0b5f71a76e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 [2023-12-02 19:40:18,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:40:18,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:40:18,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:40:18,657 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:40:18,657 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:40:18,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2023-12-02 19:40:21,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:40:21,718 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:40:21,718 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2023-12-02 19:40:21,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data/ee59457d3/87c7605764b343b0be88a0345510788c/FLAGd369d3da2 [2023-12-02 19:40:21,742 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/data/ee59457d3/87c7605764b343b0be88a0345510788c [2023-12-02 19:40:21,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:40:21,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:40:21,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:40:21,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:40:21,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:40:21,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:21" (1/1) ... [2023-12-02 19:40:21,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6981aed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:21, skipping insertion in model container [2023-12-02 19:40:21,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:21" (1/1) ... [2023-12-02 19:40:21,779 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:40:21,917 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_fe56a359-0850-4071-bba7-c0b5f71a76e8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2023-12-02 19:40:21,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:40:21,969 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:40:21,981 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_fe56a359-0850-4071-bba7-c0b5f71a76e8/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2023-12-02 19:40:21,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:40:22,019 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:40:22,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22 WrapperNode [2023-12-02 19:40:22,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:40:22,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:40:22,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:40:22,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:40:22,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,065 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-12-02 19:40:22,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:40:22,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:40:22,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:40:22,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:40:22,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:40:22,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:40:22,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:40:22,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:40:22,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (1/1) ... [2023-12-02 19:40:22,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:40:22,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:40:22,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:40:22,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:40:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:40:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 19:40:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:40:22,183 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:40:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:40:22,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:40:22,262 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:40:22,265 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:40:26,136 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:40:26,191 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:40:26,191 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:40:26,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:26 BoogieIcfgContainer [2023-12-02 19:40:26,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:40:26,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:40:26,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:40:26,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:40:26,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:40:21" (1/3) ... [2023-12-02 19:40:26,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8aaab8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:40:26, skipping insertion in model container [2023-12-02 19:40:26,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:22" (2/3) ... [2023-12-02 19:40:26,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8aaab8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:40:26, skipping insertion in model container [2023-12-02 19:40:26,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:26" (3/3) ... [2023-12-02 19:40:26,200 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-95.i [2023-12-02 19:40:26,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:40:26,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:40:26,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:40:26,267 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;@6442b90a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:40:26,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:40:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 19:40:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 19:40:26,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:26,282 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:40:26,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:40:26,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:26,287 INFO L85 PathProgramCache]: Analyzing trace with hash 969988537, now seen corresponding path program 1 times [2023-12-02 19:40:26,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:40:26,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57981317] [2023-12-02 19:40:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:26,300 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 19:40:26,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:40:26,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:40:26,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:40:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:26,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 19:40:26,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:40:26,701 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-02 19:40:26,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:40:26,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:40:26,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57981317] [2023-12-02 19:40:26,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57981317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:26,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:40:26,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:40:26,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373359598] [2023-12-02 19:40:26,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:26,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:40:26,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:40:26,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:40:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:40:26,745 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-02 19:40:28,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:28,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:40:28,847 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2023-12-02 19:40:28,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:40:28,873 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2023-12-02 19:40:28,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:40:28,881 INFO L225 Difference]: With dead ends: 61 [2023-12-02 19:40:28,881 INFO L226 Difference]: Without dead ends: 30 [2023-12-02 19:40:28,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 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 19:40:28,889 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:40:28,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 19:40:28,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-02 19:40:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-02 19:40:28,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 19:40:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2023-12-02 19:40:28,931 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 64 [2023-12-02 19:40:28,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:40:28,932 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2023-12-02 19:40:28,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-02 19:40:28,932 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-12-02 19:40:28,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 19:40:28,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:28,936 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:40:28,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:40:29,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:40:29,140 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:40:29,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:29,141 INFO L85 PathProgramCache]: Analyzing trace with hash 644295597, now seen corresponding path program 1 times [2023-12-02 19:40:29,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:40:29,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988940527] [2023-12-02 19:40:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:29,143 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 19:40:29,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:40:29,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:40:29,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:40:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:29,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 19:40:29,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:41:26,482 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 78 proven. 36 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 19:41:26,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:41:42,114 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse5 (fp.gt c_~var_1_4~0 c_~var_1_5~0))) (let ((.cse1 (not .cse5)) (.cse4 (fp.eq c_~var_1_1~0 c_~var_1_4~0)) (.cse6 (fp.lt c_~var_1_2~0 (fp.sub c_currentRoundingMode c_~var_1_3~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2277.0 250.0))))) (.cse3 (fp.eq c_~var_1_1~0 c_~var_1_5~0)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1317.0 40.0)))) (and (or (forall ((~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_6~0 (_ FloatingPoint 11 53))) (not (fp.eq c_~var_1_1~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_6~0 ~var_1_7~0) .cse0)))) (let ((.cse2 (not .cse6))) (and (or (and (or .cse1 .cse2) (or .cse2 .cse3)) .cse4) (or .cse2 .cse5 .cse3)))) (or (and (or .cse1 .cse4) .cse6 (or .cse5 .cse3)) (forall ((~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_6~0 (_ FloatingPoint 11 53))) (fp.eq c_~var_1_1~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_6~0 ~var_1_7~0) .cse0))))))) is different from true [2023-12-02 19:41:47,651 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:41:47,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988940527] [2023-12-02 19:41:47,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988940527] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:41:47,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [293656633] [2023-12-02 19:41:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:47,653 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 19:41:47,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 19:41:47,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 19:41:47,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 19:41:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:48,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 19:41:48,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:45:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 87 proven. 18 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-02 19:45:50,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:46:08,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [293656633] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:46:08,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660769218] [2023-12-02 19:46:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:08,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:46:08,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:46:08,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:46:08,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:46:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:09,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 19:46:09,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:46:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 96 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-02 19:46:42,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:47:01,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660769218] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:47:01,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:47:01,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 9] total 19 [2023-12-02 19:47:01,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360274708] [2023-12-02 19:47:01,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:47:01,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 19:47:01,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:47:01,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 19:47:01,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=332, Unknown=1, NotChecked=38, Total=462 [2023-12-02 19:47:01,677 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (27), 6 states have call predecessors, (27), 9 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-02 19:47:20,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:22,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:28,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:30,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:47:31,204 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2023-12-02 19:47:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 19:47:31,215 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (27), 6 states have call predecessors, (27), 9 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 64 [2023-12-02 19:47:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:47:31,217 INFO L225 Difference]: With dead ends: 46 [2023-12-02 19:47:31,217 INFO L226 Difference]: Without dead ends: 44 [2023-12-02 19:47:31,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=170, Invalid=535, Unknown=1, NotChecked=50, Total=756 [2023-12-02 19:47:31,219 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:47:31,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 113 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 1 Unknown, 0 Unchecked, 22.6s Time] [2023-12-02 19:47:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-02 19:47:31,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2023-12-02 19:47:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 19:47:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2023-12-02 19:47:31,231 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 64 [2023-12-02 19:47:31,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:47:31,231 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2023-12-02 19:47:31,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (27), 6 states have call predecessors, (27), 9 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-02 19:47:31,232 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-12-02 19:47:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 19:47:31,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:47:31,233 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:47:31,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:47:31,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 19:47:31,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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)] Ended with exit code 0 [2023-12-02 19:47:31,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:47:31,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:47:31,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:47:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash 644355179, now seen corresponding path program 1 times [2023-12-02 19:47:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:47:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627406909] [2023-12-02 19:47:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:47:31,836 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 19:47:31,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:47:31,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:47:31,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe56a359-0850-4071-bba7-c0b5f71a76e8/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 19:47:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:47:32,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 19:47:32,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:48:25,800 WARN L293 SmtUtils]: Spent 20.04s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:51:55,200 WARN L293 SmtUtils]: Spent 18.36s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:52:13,407 WARN L854 $PredicateComparison]: unable to prove that (exists ((~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_6~0 (_ FloatingPoint 11 53))) (and (not (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1317.0 40.0))))) (fp.eq .cse0 .cse0))) (fp.leq ~var_1_7~0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0))) (fp.geq ~var_1_7~0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (fp.leq ~var_1_6~0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))))) is different from false [2023-12-02 19:52:15,355 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 104 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 19:52:15,355 INFO L327 TraceCheckSpWp]: Computing backward predicates...