./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92ab77284c41e8949aa8a67882902909eedb25047f32a3303bcd08767adce507 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:56:50,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:56:50,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:56:50,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:56:50,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:56:50,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:56:50,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:56:50,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:56:50,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:56:50,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:56:50,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:56:50,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:56:50,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:56:50,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:56:50,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:56:50,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:56:50,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:56:50,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:56:50,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:56:50,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:56:50,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:56:50,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:56:50,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:56:50,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:56:50,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:56:50,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:56:50,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:56:50,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:56:50,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:56:50,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:56:50,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:56:50,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:56:50,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:56:50,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:56:50,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:56:50,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:56:50,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:56:50,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:56:50,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:56:50,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:56:50,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:56:50,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:56:50,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:56:50,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:56:50,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:56:50,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:56:50,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:56:50,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:56:50,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:56:50,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:56:50,907 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:56:50,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:56:50,909 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:56:50,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:56:50,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:56:50,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:56:50,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:56:50,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:56:50,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:56:50,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:56:50,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:56:50,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:56:50,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:56:50,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:56:50,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:56:50,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:56:50,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:50,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:56:50,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:56:50,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:56:50,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:56:50,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:56:50,916 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:56:50,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:56:50,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:56:50,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92ab77284c41e8949aa8a67882902909eedb25047f32a3303bcd08767adce507 [2022-10-17 10:56:51,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:56:51,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:56:51,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:56:51,373 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:56:51,374 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:56:51,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-10-17 10:56:51,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/data/1f51475c0/fdb1a873bc734444bdc3976d3b4c987a/FLAGc3ac5e43f [2022-10-17 10:56:52,462 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:56:52,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-10-17 10:56:52,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/data/1f51475c0/fdb1a873bc734444bdc3976d3b4c987a/FLAGc3ac5e43f [2022-10-17 10:56:52,823 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/data/1f51475c0/fdb1a873bc734444bdc3976d3b4c987a [2022-10-17 10:56:52,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:56:52,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:56:52,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:52,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:56:52,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:56:52,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:52" (1/1) ... [2022-10-17 10:56:52,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41919bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:52, skipping insertion in model container [2022-10-17 10:56:52,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:52" (1/1) ... [2022-10-17 10:56:52,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:56:53,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:53,969 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26799,26812] [2022-10-17 10:56:54,027 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33129,33142] [2022-10-17 10:56:54,178 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57661,57674] [2022-10-17 10:56:54,235 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65696,65709] [2022-10-17 10:56:54,259 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71499,71512] [2022-10-17 10:56:54,306 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82182,82195] [2022-10-17 10:56:54,335 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90107,90120] [2022-10-17 10:56:54,358 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97295,97308] [2022-10-17 10:56:54,514 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[131822,131835] [2022-10-17 10:56:54,545 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[134930,134943] [2022-10-17 10:56:54,610 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[142923,142936] [2022-10-17 10:56:54,668 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[148707,148720] [2022-10-17 10:56:54,778 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[171333,171346] [2022-10-17 10:56:54,877 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199069,199082] [2022-10-17 10:56:54,959 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[225502,225515] [2022-10-17 10:56:55,044 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[252663,252676] [2022-10-17 10:56:55,141 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[283670,283683] [2022-10-17 10:56:55,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:55,523 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:56:55,669 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26799,26812] [2022-10-17 10:56:55,689 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33129,33142] [2022-10-17 10:56:55,753 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57661,57674] [2022-10-17 10:56:55,775 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65696,65709] [2022-10-17 10:56:55,792 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71499,71512] [2022-10-17 10:56:55,823 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82182,82195] [2022-10-17 10:56:55,845 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90107,90120] [2022-10-17 10:56:55,899 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97295,97308] [2022-10-17 10:56:55,999 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[131822,131835] [2022-10-17 10:56:56,011 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[134930,134943] [2022-10-17 10:56:56,035 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[142923,142936] [2022-10-17 10:56:56,053 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[148707,148720] [2022-10-17 10:56:56,116 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[171333,171346] [2022-10-17 10:56:56,189 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199069,199082] [2022-10-17 10:56:56,262 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[225502,225515] [2022-10-17 10:56:56,335 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[252663,252676] [2022-10-17 10:56:56,417 WARN L230 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_66c13693-3d78-43fc-ba70-7e5999091681/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[283670,283683] [2022-10-17 10:56:56,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:56,760 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:56:56,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56 WrapperNode [2022-10-17 10:56:56,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:56,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:56,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:56:56,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:56:56,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:56,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,231 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16771 [2022-10-17 10:56:57,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:57,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:56:57,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:56:57,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:56:57,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:56:57,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:56:57,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:56:57,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:56:57,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (1/1) ... [2022-10-17 10:56:57,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:57,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:57,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:58,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c13693-3d78-43fc-ba70-7e5999091681/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:56:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:56:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:56:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:56:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:56:58,746 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:56:58,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:57:07,764 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:57:07,810 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:57:07,810 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:57:07,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:07 BoogieIcfgContainer [2022-10-17 10:57:07,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:57:07,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:57:07,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:57:07,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:57:07,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:56:52" (1/3) ... [2022-10-17 10:57:07,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a080b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:57:07, skipping insertion in model container [2022-10-17 10:57:07,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:56" (2/3) ... [2022-10-17 10:57:07,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a080b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:57:07, skipping insertion in model container [2022-10-17 10:57:07,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:07" (3/3) ... [2022-10-17 10:57:07,828 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-10-17 10:57:07,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:57:07,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-10-17 10:57:08,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:57:08,095 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d581351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:57:08,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-10-17 10:57:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 3532 states, 3514 states have (on average 1.8264086511098463) internal successors, (6418), 3531 states have internal predecessors, (6418), 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) [2022-10-17 10:57:08,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 10:57:08,163 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:08,164 INFO L195 NwaCegarLoop]: 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] [2022-10-17 10:57:08,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-10-17 10:57:08,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash -912153875, now seen corresponding path program 1 times [2022-10-17 10:57:08,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:08,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126403794] [2022-10-17 10:57:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:08,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:09,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:09,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126403794] [2022-10-17 10:57:09,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126403794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:09,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:09,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:09,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751687004] [2022-10-17 10:57:09,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:09,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:57:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:09,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:57:09,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:09,200 INFO L87 Difference]: Start difference. First operand has 3532 states, 3514 states have (on average 1.8264086511098463) internal successors, (6418), 3531 states have internal predecessors, (6418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-10-17 10:57:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:15,152 INFO L93 Difference]: Finished difference Result 6625 states and 11820 transitions. [2022-10-17 10:57:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:57:15,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2022-10-17 10:57:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:15,220 INFO L225 Difference]: With dead ends: 6625 [2022-10-17 10:57:15,221 INFO L226 Difference]: Without dead ends: 4205 [2022-10-17 10:57:15,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:57:15,242 INFO L413 NwaCegarLoop]: 2778 mSDtfsCounter, 19668 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 3575 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19668 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:15,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19668 Valid, 3928 Invalid, 3786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [211 Valid, 3575 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-10-17 10:57:15,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2022-10-17 10:57:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 4181. [2022-10-17 10:57:15,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4181 states, 4164 states have (on average 1.340537944284342) internal successors, (5582), 4180 states have internal predecessors, (5582), 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) [2022-10-17 10:57:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4181 states to 4181 states and 5582 transitions. [2022-10-17 10:57:15,672 INFO L78 Accepts]: Start accepts. Automaton has 4181 states and 5582 transitions. Word has length 64 [2022-10-17 10:57:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:15,674 INFO L495 AbstractCegarLoop]: Abstraction has 4181 states and 5582 transitions. [2022-10-17 10:57:15,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-10-17 10:57:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4181 states and 5582 transitions. [2022-10-17 10:57:15,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-17 10:57:15,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:15,693 INFO L195 NwaCegarLoop]: 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] [2022-10-17 10:57:15,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:57:15,694 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-10-17 10:57:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash -919069742, now seen corresponding path program 1 times [2022-10-17 10:57:15,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:15,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699336706] [2022-10-17 10:57:15,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:15,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:16,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:16,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699336706] [2022-10-17 10:57:16,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699336706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:16,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:16,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:16,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374097903] [2022-10-17 10:57:16,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:16,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:57:16,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:16,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:57:16,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:16,136 INFO L87 Difference]: Start difference. First operand 4181 states and 5582 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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)