./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:57:44,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:57:44,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:57:44,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:57:44,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:57:44,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:57:44,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:57:44,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:57:44,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:57:44,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:57:44,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:57:44,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:57:44,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:57:44,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:57:44,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:57:44,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:57:44,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:57:44,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:57:44,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:57:44,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:57:44,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:57:44,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:57:44,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:57:44,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:57:44,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:57:44,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:57:44,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:57:44,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:57:44,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:57:44,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:57:44,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:57:44,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:57:44,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:57:44,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:57:44,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:57:44,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:57:44,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:57:44,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:57:44,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:57:44,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:57:44,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:57:44,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:57:44,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:57:44,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:57:44,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:57:44,251 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:57:44,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:57:44,252 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:57:44,252 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:57:44,259 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:57:44,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:57:44,259 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:57:44,261 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:57:44,261 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:57:44,262 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:57:44,262 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:57:44,262 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:57:44,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:57:44,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:57:44,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:57:44,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:57:44,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:57:44,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:57:44,265 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:57:44,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:57:44,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:57:44,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:57:44,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:57:44,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:57:44,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:57:44,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:57:44,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:57:44,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:57:44,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:57:44,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:57:44,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:57:44,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:57:44,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:57:44,271 INFO L138 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_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 [2021-11-03 03:57:44,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:57:44,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:57:44,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:57:44,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:57:44,577 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:57:44,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-03 03:57:44,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/54e340ffe/51db5da9615b41d3a6c73cdb7bd7ac61/FLAGd8bcba600 [2021-11-03 03:57:45,580 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:57:45,581 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-03 03:57:45,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/54e340ffe/51db5da9615b41d3a6c73cdb7bd7ac61/FLAGd8bcba600 [2021-11-03 03:57:46,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/54e340ffe/51db5da9615b41d3a6c73cdb7bd7ac61 [2021-11-03 03:57:46,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:57:46,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:57:46,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:57:46,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:57:46,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:57:46,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:57:46" (1/1) ... [2021-11-03 03:57:46,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b9dddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:46, skipping insertion in model container [2021-11-03 03:57:46,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:57:46" (1/1) ... [2021-11-03 03:57:46,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:57:46,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:57:47,600 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,606 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,616 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,621 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,626 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,632 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,635 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,641 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,643 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,657 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:57:47,699 WARN L228 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_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-03 03:57:47,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:57:47,742 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 03:57:47,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9ae569a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:47, skipping insertion in model container [2021-11-03 03:57:47,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:57:47,743 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 03:57:47,746 INFO L168 Benchmark]: Toolchain (without parser) took 1684.92 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 60.5 MB in the beginning and 57.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:47,746 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 102.8 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:57:47,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1679.86 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 60.5 MB in the beginning and 57.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-11-03 03:57:47,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 102.8 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1679.86 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 60.5 MB in the beginning and 57.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4213]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:57:50,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:57:50,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:57:50,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:57:50,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:57:50,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:57:50,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:57:50,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:57:50,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:57:50,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:57:50,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:57:50,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:57:50,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:57:50,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:57:50,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:57:50,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:57:50,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:57:50,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:57:50,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:57:50,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:57:50,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:57:50,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:57:50,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:57:50,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:57:50,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:57:50,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:57:50,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:57:50,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:57:50,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:57:50,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:57:50,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:57:50,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:57:50,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:57:50,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:57:50,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:57:50,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:57:50,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:57:50,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:57:50,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:57:50,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:57:50,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:57:50,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:57:50,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:57:50,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:57:50,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:57:50,558 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:57:50,559 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:57:50,559 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:57:50,559 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:57:50,559 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:57:50,560 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:57:50,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:57:50,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:57:50,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:57:50,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:57:50,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:57:50,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:57:50,564 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:57:50,564 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:57:50,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:57:50,565 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:57:50,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:57:50,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:57:50,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:57:50,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:57:50,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:57:50,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:57:50,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:57:50,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:57:50,567 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:57:50,567 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:57:50,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:57:50,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:57:50,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:57:50,568 INFO L138 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_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 [2021-11-03 03:57:50,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:57:50,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:57:50,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:57:50,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:57:50,980 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:57:50,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-03 03:57:51,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/dbd802ce6/0f9a78b3713146e58e80e3a9957965e2/FLAGbbd5918d2 [2021-11-03 03:57:52,067 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:57:52,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-03 03:57:52,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/dbd802ce6/0f9a78b3713146e58e80e3a9957965e2/FLAGbbd5918d2 [2021-11-03 03:57:52,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/data/dbd802ce6/0f9a78b3713146e58e80e3a9957965e2 [2021-11-03 03:57:52,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:57:52,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:57:52,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:57:52,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:57:52,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:57:52,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:57:52" (1/1) ... [2021-11-03 03:57:52,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b3c830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:52, skipping insertion in model container [2021-11-03 03:57:52,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:57:52" (1/1) ... [2021-11-03 03:57:52,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:57:52,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:57:54,025 WARN L228 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_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-03 03:57:54,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:57:54,073 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:57:54,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:57:54,454 WARN L228 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_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-03 03:57:54,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:57:54,496 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:57:54,828 WARN L228 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_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2021-11-03 03:57:54,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:57:55,009 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:57:55,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55 WrapperNode [2021-11-03 03:57:55,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:57:55,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:57:55,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:57:55,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:57:55,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:55,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:56,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:57:56,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:57:56,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:57:56,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:57:56,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:56,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:56,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:56,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:56,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:56,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:56,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:57,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:57:57,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:57:57,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:57:57,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:57:57,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (1/1) ... [2021-11-03 03:57:57,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:57:57,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:57:57,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:57:57,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:57:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:57:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:57:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:57:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:57:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 03:57:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:57:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 03:57:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 03:57:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 03:57:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 03:57:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:57:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:57:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:57:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 03:57:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 03:57:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 03:57:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:57:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:57:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 03:57:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:57:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:57:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:57:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:57:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:57:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:57:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 03:57:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-03 03:57:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:57:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:06:23,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:06:23,831 INFO L299 CfgBuilder]: Removed 3233 assume(true) statements. [2021-11-03 04:06:23,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:23 BoogieIcfgContainer [2021-11-03 04:06:23,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:06:23,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:06:23,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:06:23,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:06:23,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:57:52" (1/3) ... [2021-11-03 04:06:23,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c6aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:23, skipping insertion in model container [2021-11-03 04:06:23,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:57:55" (2/3) ... [2021-11-03 04:06:23,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c6aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:23, skipping insertion in model container [2021-11-03 04:06:23,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:23" (3/3) ... [2021-11-03 04:06:23,850 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-03 04:06:23,856 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:06:23,856 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:06:23,923 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:06:23,929 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:06:23,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:06:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 4726 states, 4719 states have (on average 1.5117609663064209) internal successors, (7134), 4725 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:24,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 04:06:24,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:24,052 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:24,053 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:06:24,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash 7063654, now seen corresponding path program 1 times [2021-11-03 04:06:24,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:24,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071086330] [2021-11-03 04:06:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:24,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:24,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:24,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:24,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:06:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:25,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:06:25,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:26,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:26,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:26,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071086330] [2021-11-03 04:06:26,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071086330] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:26,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:26,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:06:26,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094145799] [2021-11-03 04:06:26,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:06:26,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:26,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:06:26,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:06:26,453 INFO L87 Difference]: Start difference. First operand has 4726 states, 4719 states have (on average 1.5117609663064209) internal successors, (7134), 4725 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:26,631 INFO L93 Difference]: Finished difference Result 9448 states and 14263 transitions. [2021-11-03 04:06:26,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:06:26,633 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-03 04:06:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:26,673 INFO L225 Difference]: With dead ends: 9448 [2021-11-03 04:06:26,673 INFO L226 Difference]: Without dead ends: 4697 [2021-11-03 04:06:26,686 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:06:26,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2021-11-03 04:06:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 4697. [2021-11-03 04:06:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4697 states, 4691 states have (on average 1.5052227670006395) internal successors, (7061), 4696 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:26,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 7061 transitions. [2021-11-03 04:06:26,877 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 7061 transitions. Word has length 42 [2021-11-03 04:06:26,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:26,877 INFO L470 AbstractCegarLoop]: Abstraction has 4697 states and 7061 transitions. [2021-11-03 04:06:26,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 7061 transitions. [2021-11-03 04:06:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 04:06:26,881 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:26,881 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:26,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:27,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:27,096 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:06:27,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:27,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1980709140, now seen corresponding path program 1 times [2021-11-03 04:06:27,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:27,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154854701] [2021-11-03 04:06:27,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:27,105 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:27,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:27,106 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:27,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:06:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:28,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:06:28,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:29,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:29,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:29,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:29,437 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:29,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154854701] [2021-11-03 04:06:29,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154854701] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:29,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:29,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:06:29,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452416819] [2021-11-03 04:06:29,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:06:29,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:29,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:06:29,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:06:29,441 INFO L87 Difference]: Start difference. First operand 4697 states and 7061 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:29,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:29,780 INFO L93 Difference]: Finished difference Result 9382 states and 14113 transitions. [2021-11-03 04:06:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:06:29,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-03 04:06:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:29,808 INFO L225 Difference]: With dead ends: 9382 [2021-11-03 04:06:29,808 INFO L226 Difference]: Without dead ends: 4701 [2021-11-03 04:06:29,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:06:29,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4701 states. [2021-11-03 04:06:29,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4701 to 4701. [2021-11-03 04:06:29,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4701 states, 4695 states have (on average 1.5047923322683705) internal successors, (7065), 4700 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 7065 transitions. [2021-11-03 04:06:29,946 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 7065 transitions. Word has length 42 [2021-11-03 04:06:29,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:29,946 INFO L470 AbstractCegarLoop]: Abstraction has 4701 states and 7065 transitions. [2021-11-03 04:06:29,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 7065 transitions. [2021-11-03 04:06:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 04:06:29,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:29,950 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:29,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:30,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:30,164 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:06:30,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:30,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1915917044, now seen corresponding path program 1 times [2021-11-03 04:06:30,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:30,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568477255] [2021-11-03 04:06:30,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:30,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:30,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:30,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:30,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:06:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:31,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:06:31,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:32,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:33,042 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:33,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568477255] [2021-11-03 04:06:33,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568477255] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:06:33,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [165680673] [2021-11-03 04:06:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:33,043 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:06:33,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:06:33,047 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:06:33,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-03 04:06:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:34,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:06:34,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:06:34,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:06:34,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [165680673] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:34,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:06:34,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-03 04:06:34,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968573663] [2021-11-03 04:06:34,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:06:34,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:34,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:06:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:06:34,949 INFO L87 Difference]: Start difference. First operand 4701 states and 7065 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:35,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:35,420 INFO L93 Difference]: Finished difference Result 10108 states and 15163 transitions. [2021-11-03 04:06:35,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:06:35,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-03 04:06:35,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:35,452 INFO L225 Difference]: With dead ends: 10108 [2021-11-03 04:06:35,452 INFO L226 Difference]: Without dead ends: 5427 [2021-11-03 04:06:35,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:06:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5427 states. [2021-11-03 04:06:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5427 to 5409. [2021-11-03 04:06:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5409 states, 5403 states have (on average 1.4991671293725708) internal successors, (8100), 5408 states have internal predecessors, (8100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5409 states to 5409 states and 8100 transitions. [2021-11-03 04:06:35,616 INFO L78 Accepts]: Start accepts. Automaton has 5409 states and 8100 transitions. Word has length 44 [2021-11-03 04:06:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:35,616 INFO L470 AbstractCegarLoop]: Abstraction has 5409 states and 8100 transitions. [2021-11-03 04:06:35,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:35,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5409 states and 8100 transitions. [2021-11-03 04:06:35,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 04:06:35,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:35,622 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:35,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:35,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:36,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:06:36,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:06:36,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:36,045 INFO L85 PathProgramCache]: Analyzing trace with hash -219037028, now seen corresponding path program 1 times [2021-11-03 04:06:36,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:36,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741191038] [2021-11-03 04:06:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:36,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:36,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:36,048 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:06:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:37,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:06:37,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:38,878 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:06:38,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:06:39,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:39,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741191038] [2021-11-03 04:06:39,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741191038] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:06:39,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [53012581] [2021-11-03 04:06:39,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:40,000 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:06:40,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:06:40,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:06:40,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-03 04:06:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:42,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:06:42,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:06:43,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:44,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:06:44,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [53012581] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:06:44,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671558815] [2021-11-03 04:06:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:44,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:06:44,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:06:44,088 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:06:44,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fb0cb1e-b3aa-4e2d-a7aa-889f3c7c4297/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 04:06:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:45,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:06:45,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:45,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-03 04:06:46,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2021-11-03 04:06:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:06:46,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:06:48,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671558815] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:48,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-03 04:06:48,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 18 [2021-11-03 04:06:48,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125421735] [2021-11-03 04:06:48,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:06:48,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:06:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:06:48,672 INFO L87 Difference]: Start difference. First operand 5409 states and 8100 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)