./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8 --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 ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:18:40,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:18:40,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:18:40,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:18:40,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:18:40,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:18:40,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:18:40,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:18:40,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:18:40,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:18:40,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:18:40,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:18:40,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:18:40,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:18:40,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:18:40,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:18:40,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:18:40,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:18:40,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:18:40,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:18:40,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:18:40,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:18:40,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:18:40,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:18:40,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:18:40,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:18:40,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:18:40,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:18:40,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:18:40,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:18:40,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:18:40,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:18:40,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:18:40,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:18:40,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:18:40,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:18:40,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:18:40,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:18:40,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:18:40,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:18:40,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:18:40,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:18:40,964 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:18:40,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:18:40,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:18:40,966 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:18:40,967 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:18:40,967 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:18:40,967 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:18:40,968 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:18:40,968 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:18:40,968 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:18:40,969 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:18:40,970 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:18:40,970 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:18:40,970 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:18:40,971 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:18:40,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:18:40,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:18:40,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:18:40,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:18:40,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:18:40,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:18:40,973 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:18:40,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:18:40,974 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:18:40,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:18:40,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:18:40,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:18:40,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:18:40,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:18:40,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:18:40,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:18:40,977 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:18:40,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:18:40,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:18:40,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:18:40,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:18:40,979 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_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e [2021-11-07 01:18:41,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:18:41,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:18:41,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:18:41,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:18:41,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:18:41,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-07 01:18:41,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/ef9dc2bba/7ed5824311ba4380bd98b0c9ec09bc52/FLAG74bfc99a1 [2021-11-07 01:18:42,671 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:18:42,672 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-07 01:18:42,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/ef9dc2bba/7ed5824311ba4380bd98b0c9ec09bc52/FLAG74bfc99a1 [2021-11-07 01:18:42,910 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/ef9dc2bba/7ed5824311ba4380bd98b0c9ec09bc52 [2021-11-07 01:18:42,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:18:42,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:18:42,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:42,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:18:42,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:18:42,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:42" (1/1) ... [2021-11-07 01:18:42,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ec68b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:42, skipping insertion in model container [2021-11-07 01:18:42,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:42" (1/1) ... [2021-11-07 01:18:42,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:18:43,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:18:45,233 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,256 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,312 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,332 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,345 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,358 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,359 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,361 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,369 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,376 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,407 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,408 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,409 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,420 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,449 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,456 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,493 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,507 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,511 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,559 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,561 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,572 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,583 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,599 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,629 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,672 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,693 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,749 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,758 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,762 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,775 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,775 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,782 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,783 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,789 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,789 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,796 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,809 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,810 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,831 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,832 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,841 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,842 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,892 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,908 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,930 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:45,931 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,077 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,316 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,364 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,506 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,518 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,524 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,551 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,551 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,552 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,582 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,593 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,624 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,651 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,654 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,679 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,681 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,684 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,684 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,686 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,686 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,686 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,687 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,688 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,688 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,690 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,690 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,691 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,985 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:46,996 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:47,003 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:47,021 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:47,034 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:47,151 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:18:47,181 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_164ccd64-2a64-41cb-94fc-2c594078fd1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-07 01:18:47,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:47,598 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) [2021-11-07 01:18:47,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24f75ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:47, skipping insertion in model container [2021-11-07 01:18:47,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:47,600 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:18:47,603 INFO L168 Benchmark]: Toolchain (without parser) took 4685.27 ms. Allocated memory was 107.0 MB in the beginning and 174.1 MB in the end (delta: 67.1 MB). Free memory was 72.2 MB in the beginning and 81.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:18:47,604 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:18:47,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4680.18 ms. Allocated memory was 107.0 MB in the beginning and 174.1 MB in the end (delta: 67.1 MB). Free memory was 71.9 MB in the beginning and 81.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:18:47,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4680.18 ms. Allocated memory was 107.0 MB in the beginning and 174.1 MB in the end (delta: 67.1 MB). Free memory was 71.9 MB in the beginning and 81.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 60.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4718]: 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_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8 --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 ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:18:50,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:18:50,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:18:50,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:18:50,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:18:50,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:18:50,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:18:50,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:18:50,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:18:50,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:18:50,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:18:50,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:18:50,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:18:50,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:18:50,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:18:50,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:18:50,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:18:50,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:18:50,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:18:50,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:18:50,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:18:50,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:18:50,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:18:50,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:18:50,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:18:50,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:18:50,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:18:50,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:18:50,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:18:50,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:18:50,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:18:50,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:18:50,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:18:50,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:18:50,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:18:50,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:18:50,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:18:50,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:18:50,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:18:50,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:18:50,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:18:50,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:18:50,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:18:50,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:18:50,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:18:50,369 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:18:50,369 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:18:50,369 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:18:50,370 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:18:50,370 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:18:50,370 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:18:50,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:18:50,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:18:50,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:18:50,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:18:50,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:18:50,372 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:18:50,372 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:18:50,373 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:18:50,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:18:50,373 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:18:50,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:18:50,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:18:50,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:18:50,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:18:50,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:18:50,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:18:50,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:18:50,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:18:50,381 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:18:50,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:18:50,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:18:50,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:18:50,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:18:50,383 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_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e [2021-11-07 01:18:50,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:18:50,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:18:50,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:18:50,872 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:18:50,872 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:18:50,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-07 01:18:50,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/fec74b351/85db5c8c078d4b3796ad4126069ea159/FLAG38d2c1a78 [2021-11-07 01:18:52,317 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:18:52,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-07 01:18:52,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/fec74b351/85db5c8c078d4b3796ad4126069ea159/FLAG38d2c1a78 [2021-11-07 01:18:52,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/data/fec74b351/85db5c8c078d4b3796ad4126069ea159 [2021-11-07 01:18:52,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:18:52,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:18:52,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:52,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:18:52,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:18:52,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:52" (1/1) ... [2021-11-07 01:18:52,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11fb995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:52, skipping insertion in model container [2021-11-07 01:18:52,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:52" (1/1) ... [2021-11-07 01:18:52,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:18:52,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:18:56,878 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_164ccd64-2a64-41cb-94fc-2c594078fd1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-07 01:18:57,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:57,346 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:18:57,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:18:58,105 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_164ccd64-2a64-41cb-94fc-2c594078fd1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-07 01:18:58,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:58,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:18:59,032 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_164ccd64-2a64-41cb-94fc-2c594078fd1f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2021-11-07 01:18:59,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:59,423 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:18:59,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59 WrapperNode [2021-11-07 01:18:59,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:59,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:18:59,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:18:59,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:18:59,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:18:59,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:01,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:19:01,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:19:01,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:19:01,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:19:01,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:01,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:02,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:02,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:03,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:04,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:04,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:04,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:19:04,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:19:04,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:19:04,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:19:04,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (1/1) ... [2021-11-07 01:19:04,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:19:04,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:19:04,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:19:04,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:19:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 01:19:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_request_effect_upload [2021-11-07 01:19:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_request_effect_upload [2021-11-07 01:19:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure hid_suspend [2021-11-07 01:19:04,588 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_suspend [2021-11-07 01:19:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 01:19:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume_common [2021-11-07 01:19:04,588 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume_common [2021-11-07 01:19:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:19:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:19:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:19:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:19:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:19:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pidff_init [2021-11-07 01:19:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pidff_init [2021-11-07 01:19:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:19:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_autocenter [2021-11-07 01:19:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_autocenter [2021-11-07 01:19:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:19:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 01:19:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:19:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:19:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:19:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_wait [2021-11-07 01:19:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_wait [2021-11-07 01:19:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:19:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:19:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:19:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:19:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:19:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:19:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:19:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:19:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:19:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~C_INT [2021-11-07 01:19:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~C_INT [2021-11-07 01:19:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:19:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:19:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:19:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:19:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:19:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:19:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:19:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset_resume [2021-11-07 01:19:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset_resume [2021-11-07 01:19:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-07 01:19:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-07 01:19:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:19:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:19:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:19:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:19:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_reset [2021-11-07 01:19:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_reset [2021-11-07 01:19:04,741 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume [2021-11-07 01:19:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume [2021-11-07 01:29:41,016 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:29:41,016 INFO L299 CfgBuilder]: Removed 10214 assume(true) statements. [2021-11-07 01:29:41,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:29:41 BoogieIcfgContainer [2021-11-07 01:29:41,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:29:41,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:29:41,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:29:41,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:29:41,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:18:52" (1/3) ... [2021-11-07 01:29:41,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356f90d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:29:41, skipping insertion in model container [2021-11-07 01:29:41,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:59" (2/3) ... [2021-11-07 01:29:41,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356f90d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:29:41, skipping insertion in model container [2021-11-07 01:29:41,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:29:41" (3/3) ... [2021-11-07 01:29:41,036 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2021-11-07 01:29:41,042 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:29:41,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2021-11-07 01:29:41,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:29:41,141 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 [2021-11-07 01:29:41,141 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-11-07 01:29:41,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 10314 states, 10239 states have (on average 1.4098056450825276) internal successors, (14435), 10275 states have internal predecessors, (14435), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-07 01:29:41,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 01:29:41,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:29:41,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:29:41,340 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-07 01:29:41,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:29:41,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1987000807, now seen corresponding path program 1 times [2021-11-07 01:29:41,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:29:41,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342048294] [2021-11-07 01:29:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:29:41,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:29:41,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:29:41,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:29:41,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:29:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:29:57,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:29:57,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:29:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:29:58,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:29:58,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:29:58,582 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:29:58,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342048294] [2021-11-07 01:29:58,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342048294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:29:58,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:29:58,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:29:58,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923580980] [2021-11-07 01:29:58,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:29:58,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:29:58,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:29:58,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:29:58,647 INFO L87 Difference]: Start difference. First operand has 10314 states, 10239 states have (on average 1.4098056450825276) internal successors, (14435), 10275 states have internal predecessors, (14435), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2021-11-07 01:29:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:29:59,231 INFO L93 Difference]: Finished difference Result 20624 states and 29005 transitions. [2021-11-07 01:29:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:29:59,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 68 [2021-11-07 01:29:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:29:59,325 INFO L225 Difference]: With dead ends: 20624 [2021-11-07 01:29:59,325 INFO L226 Difference]: Without dead ends: 10301 [2021-11-07 01:29:59,362 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:29:59,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10301 states. [2021-11-07 01:29:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10301 to 10301. [2021-11-07 01:29:59,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10301 states, 10227 states have (on average 1.3901437371663243) internal successors, (14217), 10262 states have internal predecessors, (14217), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-07 01:29:59,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10301 states to 10301 states and 14273 transitions. [2021-11-07 01:29:59,779 INFO L78 Accepts]: Start accepts. Automaton has 10301 states and 14273 transitions. Word has length 68 [2021-11-07 01:29:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:29:59,780 INFO L470 AbstractCegarLoop]: Abstraction has 10301 states and 14273 transitions. [2021-11-07 01:29:59,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2021-11-07 01:29:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 10301 states and 14273 transitions. [2021-11-07 01:29:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 01:29:59,785 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:29:59,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:29:59,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:30:00,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:30:00,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-07 01:30:00,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:30:00,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1968362721, now seen corresponding path program 1 times [2021-11-07 01:30:00,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:30:00,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51566424] [2021-11-07 01:30:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:30:00,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:30:00,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:30:00,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:30:00,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:30:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:30:16,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:30:16,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:30:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:30:16,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:30:17,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:30:17,154 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:30:17,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51566424] [2021-11-07 01:30:17,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51566424] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:30:17,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:30:17,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:30:17,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835071438] [2021-11-07 01:30:17,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:30:17,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:30:17,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:30:17,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:30:17,159 INFO L87 Difference]: Start difference. First operand 10301 states and 14273 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-07 01:30:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:30:19,605 INFO L93 Difference]: Finished difference Result 20619 states and 28599 transitions. [2021-11-07 01:30:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:30:19,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 68 [2021-11-07 01:30:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:30:19,696 INFO L225 Difference]: With dead ends: 20619 [2021-11-07 01:30:19,696 INFO L226 Difference]: Without dead ends: 10338 [2021-11-07 01:30:19,724 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:30:19,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10338 states. [2021-11-07 01:30:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10338 to 10338. [2021-11-07 01:30:20,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10338 states, 10264 states have (on average 1.3887373343725642) internal successors, (14254), 10299 states have internal predecessors, (14254), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-07 01:30:20,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10338 states to 10338 states and 14310 transitions. [2021-11-07 01:30:20,084 INFO L78 Accepts]: Start accepts. Automaton has 10338 states and 14310 transitions. Word has length 68 [2021-11-07 01:30:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:30:20,084 INFO L470 AbstractCegarLoop]: Abstraction has 10338 states and 14310 transitions. [2021-11-07 01:30:20,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-07 01:30:20,085 INFO L276 IsEmpty]: Start isEmpty. Operand 10338 states and 14310 transitions. [2021-11-07 01:30:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 01:30:20,087 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:30:20,088 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-11-07 01:30:20,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:30:20,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:30:20,306 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-07 01:30:20,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:30:20,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1762686239, now seen corresponding path program 1 times [2021-11-07 01:30:20,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:30:20,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992124302] [2021-11-07 01:30:20,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:30:20,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:30:20,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:30:20,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:30:20,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:30:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:30:36,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 3437 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:30:36,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:30:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:30:36,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:30:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:30:37,468 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:30:37,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992124302] [2021-11-07 01:30:37,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992124302] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:30:37,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [904359234] [2021-11-07 01:30:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:30:37,469 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:30:37,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:30:37,483 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:30:37,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 01:30:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:30:42,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 3437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:30:42,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:30:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:30:42,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:30:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:30:43,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [904359234] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:30:43,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:30:43,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 01:30:43,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352607490] [2021-11-07 01:30:43,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:30:43,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:30:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:30:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:30:43,065 INFO L87 Difference]: Start difference. First operand 10338 states and 14310 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-07 01:30:45,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:30:45,382 INFO L93 Difference]: Finished difference Result 26410 states and 36636 transitions. [2021-11-07 01:30:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:30:45,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 86 [2021-11-07 01:30:45,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:30:45,493 INFO L225 Difference]: With dead ends: 26410 [2021-11-07 01:30:45,493 INFO L226 Difference]: Without dead ends: 16144 [2021-11-07 01:30:45,528 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:30:45,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16144 states. [2021-11-07 01:30:46,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16144 to 16059. [2021-11-07 01:30:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16059 states, 15946 states have (on average 1.394456289978678) internal successors, (22236), 15982 states have internal predecessors, (22236), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-11-07 01:30:46,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16059 states to 16059 states and 22348 transitions. [2021-11-07 01:30:46,276 INFO L78 Accepts]: Start accepts. Automaton has 16059 states and 22348 transitions. Word has length 86 [2021-11-07 01:30:46,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:30:46,281 INFO L470 AbstractCegarLoop]: Abstraction has 16059 states and 22348 transitions. [2021-11-07 01:30:46,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-07 01:30:46,281 INFO L276 IsEmpty]: Start isEmpty. Operand 16059 states and 22348 transitions. [2021-11-07 01:30:46,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 01:30:46,286 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:30:46,286 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-11-07 01:30:46,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:30:46,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:30:46,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:30:46,715 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-07 01:30:46,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:30:46,717 INFO L85 PathProgramCache]: Analyzing trace with hash 666454052, now seen corresponding path program 1 times [2021-11-07 01:30:46,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:30:46,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257359091] [2021-11-07 01:30:46,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:30:46,733 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:30:46,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:30:46,734 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:30:46,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:31:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:02,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:31:02,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:31:03,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:31:04,132 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:31:04,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257359091] [2021-11-07 01:31:04,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257359091] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:31:04,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2072661241] [2021-11-07 01:31:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:04,133 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:31:04,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:31:04,136 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:31:04,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 01:31:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:09,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:31:09,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:31:10,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:31:10,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2072661241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:31:10,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:31:10,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 01:31:10,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279284662] [2021-11-07 01:31:10,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:31:10,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:31:10,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:31:10,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:31:10,890 INFO L87 Difference]: Start difference. First operand 16059 states and 22348 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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) [2021-11-07 01:31:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:31:11,533 INFO L93 Difference]: Finished difference Result 21049 states and 29310 transitions. [2021-11-07 01:31:11,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:31:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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 90 [2021-11-07 01:31:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:31:11,637 INFO L225 Difference]: With dead ends: 21049 [2021-11-07 01:31:11,638 INFO L226 Difference]: Without dead ends: 21039 [2021-11-07 01:31:11,649 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:31:11,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21039 states. [2021-11-07 01:31:12,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21039 to 21035. [2021-11-07 01:31:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21035 states, 20875 states have (on average 1.394682634730539) internal successors, (29114), 20908 states have internal predecessors, (29114), 90 states have call successors, (90), 40 states have call predecessors, (90), 40 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2021-11-07 01:31:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21035 states to 21035 states and 29294 transitions. [2021-11-07 01:31:12,330 INFO L78 Accepts]: Start accepts. Automaton has 21035 states and 29294 transitions. Word has length 90 [2021-11-07 01:31:12,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:31:12,331 INFO L470 AbstractCegarLoop]: Abstraction has 21035 states and 29294 transitions. [2021-11-07 01:31:12,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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) [2021-11-07 01:31:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 21035 states and 29294 transitions. [2021-11-07 01:31:12,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 01:31:12,335 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:31:12,336 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-11-07 01:31:12,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:31:12,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:31:12,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:31:12,751 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-07 01:31:12,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:31:12,751 INFO L85 PathProgramCache]: Analyzing trace with hash -814720868, now seen corresponding path program 1 times [2021-11-07 01:31:12,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:31:12,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316618512] [2021-11-07 01:31:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:12,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:31:12,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:31:12,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:31:12,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:31:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:29,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:31:29,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:31:29,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:31:30,466 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:31:30,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316618512] [2021-11-07 01:31:30,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316618512] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:31:30,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1519165691] [2021-11-07 01:31:30,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:30,467 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:31:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:31:30,473 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:31:30,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 01:31:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:35,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:31:35,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:36,662 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:31:36,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:37,534 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:31:37,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1519165691] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:31:37,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:31:37,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 01:31:37,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028739763] [2021-11-07 01:31:37,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:31:37,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:31:37,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:31:37,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:31:37,537 INFO L87 Difference]: Start difference. First operand 21035 states and 29294 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2021-11-07 01:31:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:31:38,246 INFO L93 Difference]: Finished difference Result 21035 states and 29294 transitions. [2021-11-07 01:31:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:31:38,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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 91 [2021-11-07 01:31:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:31:38,358 INFO L225 Difference]: With dead ends: 21035 [2021-11-07 01:31:38,359 INFO L226 Difference]: Without dead ends: 21021 [2021-11-07 01:31:38,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:31:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21021 states. [2021-11-07 01:31:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21021 to 21021. [2021-11-07 01:31:39,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21021 states, 20868 states have (on average 1.3941920644048305) internal successors, (29094), 20894 states have internal predecessors, (29094), 90 states have call successors, (90), 40 states have call predecessors, (90), 40 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2021-11-07 01:31:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21021 states to 21021 states and 29274 transitions. [2021-11-07 01:31:39,312 INFO L78 Accepts]: Start accepts. Automaton has 21021 states and 29274 transitions. Word has length 91 [2021-11-07 01:31:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:31:39,314 INFO L470 AbstractCegarLoop]: Abstraction has 21021 states and 29274 transitions. [2021-11-07 01:31:39,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2021-11-07 01:31:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 21021 states and 29274 transitions. [2021-11-07 01:31:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 01:31:39,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:31:39,324 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-11-07 01:31:39,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:31:39,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:31:39,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:31:39,751 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-07 01:31:39,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:31:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash 513496878, now seen corresponding path program 1 times [2021-11-07 01:31:39,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:31:39,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963066320] [2021-11-07 01:31:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:39,768 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:31:39,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:31:39,769 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:31:39,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:31:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:56,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:31:56,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:31:57,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 01:31:58,518 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:31:58,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963066320] [2021-11-07 01:31:58,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963066320] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:31:58,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2062930789] [2021-11-07 01:31:58,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:58,520 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:31:58,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:31:58,522 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:31:58,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-07 01:32:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:03,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:32:03,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:32:04,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:32:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-07 01:32:05,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2062930789] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:32:05,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:32:05,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 01:32:05,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660781938] [2021-11-07 01:32:05,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:32:05,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:32:05,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:32:05,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:32:05,750 INFO L87 Difference]: Start difference. First operand 21021 states and 29274 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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) [2021-11-07 01:32:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:06,178 INFO L93 Difference]: Finished difference Result 21021 states and 29274 transitions. [2021-11-07 01:32:06,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:32:06,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 92 [2021-11-07 01:32:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:06,264 INFO L225 Difference]: With dead ends: 21021 [2021-11-07 01:32:06,265 INFO L226 Difference]: Without dead ends: 21019 [2021-11-07 01:32:06,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:32:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21019 states. [2021-11-07 01:32:07,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21019 to 21019. [2021-11-07 01:32:07,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21019 states, 20867 states have (on average 1.3941630325394163) internal successors, (29092), 20892 states have internal predecessors, (29092), 90 states have call successors, (90), 40 states have call predecessors, (90), 40 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2021-11-07 01:32:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21019 states to 21019 states and 29272 transitions. [2021-11-07 01:32:07,240 INFO L78 Accepts]: Start accepts. Automaton has 21019 states and 29272 transitions. Word has length 92 [2021-11-07 01:32:07,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:07,241 INFO L470 AbstractCegarLoop]: Abstraction has 21019 states and 29272 transitions. [2021-11-07 01:32:07,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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) [2021-11-07 01:32:07,241 INFO L276 IsEmpty]: Start isEmpty. Operand 21019 states and 29272 transitions. [2021-11-07 01:32:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-07 01:32:07,244 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:07,245 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2021-11-07 01:32:07,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:07,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:07,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:32:07,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-07 01:32:07,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:07,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1261425946, now seen corresponding path program 1 times [2021-11-07 01:32:07,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:32:07,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147558211] [2021-11-07 01:32:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:07,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:32:07,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:32:07,687 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:32:07,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ccd64-2a64-41cb-94fc-2c594078fd1f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process