./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF --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 32bit --witnessprinter.graph.data.programhash ceb4cfb737a49cea9ea1be451c16ebb29f48ae611a8c94fc546ca2e3471f0eb3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:36:34,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:36:34,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:36:34,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:36:34,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:36:34,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:36:34,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:36:34,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:36:34,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:36:34,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:36:34,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:36:34,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:36:34,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:36:34,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:36:34,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:36:34,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:36:34,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:36:34,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:36:34,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:36:34,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:36:34,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:36:34,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:36:34,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:36:34,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:36:34,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:36:34,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:36:34,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:36:34,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:36:34,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:36:34,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:36:34,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:36:34,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:36:34,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:36:34,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:36:34,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:36:34,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:36:34,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:36:34,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:36:34,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:36:34,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:36:34,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:36:34,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:36:34,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:36:34,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:36:34,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:36:34,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:36:34,898 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:36:34,898 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:36:34,898 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:36:34,898 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:36:34,899 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:36:34,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:36:34,899 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:36:34,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:36:34,900 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:36:34,900 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:36:34,900 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:36:34,901 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:36:34,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:36:34,902 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:36:34,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:36:34,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:36:34,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:36:34,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:36:34,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:36:34,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:36:34,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:36:34,904 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:36:34,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:36:34,905 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:36:34,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:36:34,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:36:34,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:36:34,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:36:34,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:36:34,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:36:34,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:36:34,907 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:36:34,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:36:34,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:36:34,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:36:34,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:36:34,909 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_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceb4cfb737a49cea9ea1be451c16ebb29f48ae611a8c94fc546ca2e3471f0eb3 [2021-11-12 22:36:35,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:36:35,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:36:35,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:36:35,240 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:36:35,241 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:36:35,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-11-12 22:36:35,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/8e2b6d0b7/77458fb3b74a4e26bd1923c2b384aa75/FLAGbb92d86c4 [2021-11-12 22:36:35,876 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:36:35,876 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-11-12 22:36:35,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/8e2b6d0b7/77458fb3b74a4e26bd1923c2b384aa75/FLAGbb92d86c4 [2021-11-12 22:36:36,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/8e2b6d0b7/77458fb3b74a4e26bd1923c2b384aa75 [2021-11-12 22:36:36,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:36:36,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:36:36,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:36:36,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:36:36,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:36:36,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:36:36" (1/1) ... [2021-11-12 22:36:36,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f14ca70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:36, skipping insertion in model container [2021-11-12 22:36:36,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:36:36" (1/1) ... [2021-11-12 22:36:36,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:36:36,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:36:36,564 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_f254564c-ca80-466f-a6d8-d3c84d860248/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2021-11-12 22:36:36,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:36:36,586 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) [2021-11-12 22:36:36,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4565d2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:36, skipping insertion in model container [2021-11-12 22:36:36,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:36:36,588 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:36:36,590 INFO L158 Benchmark]: Toolchain (without parser) took 378.81ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 71.7MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:36:36,591 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:36:36,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.59ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 71.7MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:36:36,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.59ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 71.7MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 109]: 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_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF --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 32bit --witnessprinter.graph.data.programhash ceb4cfb737a49cea9ea1be451c16ebb29f48ae611a8c94fc546ca2e3471f0eb3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:36:39,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:36:39,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:36:39,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:36:39,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:36:39,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:36:39,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:36:39,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:36:39,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:36:39,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:36:39,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:36:39,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:36:39,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:36:39,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:36:39,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:36:39,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:36:39,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:36:39,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:36:39,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:36:39,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:36:39,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:36:39,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:36:39,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:36:39,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:36:39,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:36:39,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:36:39,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:36:39,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:36:39,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:36:39,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:36:39,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:36:39,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:36:39,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:36:39,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:36:39,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:36:39,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:36:39,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:36:39,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:36:39,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:36:39,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:36:39,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:36:39,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:36:39,511 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:36:39,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:36:39,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:36:39,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:36:39,514 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:36:39,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:36:39,514 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:36:39,515 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:36:39,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:36:39,515 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:36:39,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:36:39,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:36:39,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:36:39,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:36:39,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:36:39,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:36:39,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:36:39,519 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:36:39,520 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:36:39,520 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:36:39,520 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:36:39,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:36:39,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:36:39,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:36:39,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:36:39,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:36:39,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:36:39,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:36:39,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:36:39,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:36:39,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:36:39,523 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:36:39,523 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:36:39,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:36:39,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:36:39,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:36:39,525 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_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceb4cfb737a49cea9ea1be451c16ebb29f48ae611a8c94fc546ca2e3471f0eb3 [2021-11-12 22:36:39,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:36:39,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:36:39,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:36:39,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:36:39,983 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:36:39,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-11-12 22:36:40,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/1b87a32f7/622a110cc62340eba5b2351d6e607c91/FLAG7abb3d570 [2021-11-12 22:36:40,764 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:36:40,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c [2021-11-12 22:36:40,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/1b87a32f7/622a110cc62340eba5b2351d6e607c91/FLAG7abb3d570 [2021-11-12 22:36:41,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/data/1b87a32f7/622a110cc62340eba5b2351d6e607c91 [2021-11-12 22:36:41,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:36:41,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:36:41,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:36:41,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:36:41,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:36:41,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2606487f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41, skipping insertion in model container [2021-11-12 22:36:41,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:36:41,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:36:41,348 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_f254564c-ca80-466f-a6d8-d3c84d860248/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2021-11-12 22:36:41,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:36:41,396 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:36:41,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:36:41,451 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_f254564c-ca80-466f-a6d8-d3c84d860248/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2021-11-12 22:36:41,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:36:41,484 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:36:41,527 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_f254564c-ca80-466f-a6d8-d3c84d860248/sv-benchmarks/c/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2021-11-12 22:36:41,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:36:41,551 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:36:41,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41 WrapperNode [2021-11-12 22:36:41,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:36:41,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:36:41,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:36:41,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:36:41,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:36:41,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:36:41,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:36:41,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:36:41,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:36:41,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:36:41,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:36:41,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:36:41,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (1/1) ... [2021-11-12 22:36:41,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:36:41,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:36:41,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:36:41,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:36:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 22:36:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 22:36:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 22:36:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 22:36:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 22:36:41,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 22:36:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:36:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:36:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 22:36:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 22:36:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:36:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:36:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:36:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:36:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:36:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:36:41,751 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:36:42,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:36:42,596 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-12 22:36:42,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:36:42 BoogieIcfgContainer [2021-11-12 22:36:42,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:36:42,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:36:42,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:36:42,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:36:42,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:36:41" (1/3) ... [2021-11-12 22:36:42,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27104dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:36:42, skipping insertion in model container [2021-11-12 22:36:42,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:36:41" (2/3) ... [2021-11-12 22:36:42,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27104dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:36:42, skipping insertion in model container [2021-11-12 22:36:42,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:36:42" (3/3) ... [2021-11-12 22:36:42,614 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2021-11-12 22:36:42,623 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:36:42,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:36:42,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:36:42,624 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:36:42,708 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,708 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,710 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,711 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,711 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,711 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,711 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,711 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,712 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,712 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,712 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,712 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,713 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,713 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,713 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,714 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,714 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,714 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,716 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,716 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,716 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,716 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,717 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,717 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,718 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,718 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,718 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,718 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,719 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,719 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,720 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,730 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,730 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,730 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,731 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,731 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,731 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,731 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,731 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,732 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,732 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,732 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,733 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,733 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,733 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,733 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,734 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,734 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,734 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,734 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,735 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,735 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,735 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,735 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,736 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,737 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,737 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,737 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,738 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,738 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,738 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,738 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,739 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,739 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,740 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,740 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,740 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,740 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,741 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,741 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,741 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,741 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,742 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,742 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,743 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,744 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,745 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,748 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,748 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,749 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,763 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,766 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,767 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,768 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:36:42,770 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-12 22:36:42,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:36:42,859 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 [2021-11-12 22:36:42,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-12 22:36:42,884 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:36:42,902 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 156 transitions, 336 flow [2021-11-12 22:36:42,907 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 156 transitions, 336 flow [2021-11-12 22:36:42,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 153 places, 156 transitions, 336 flow [2021-11-12 22:36:43,043 INFO L129 PetriNetUnfolder]: 13/153 cut-off events. [2021-11-12 22:36:43,044 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-12 22:36:43,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 13/153 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2021-11-12 22:36:43,072 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2021-11-12 22:37:03,115 INFO L131 LiptonReduction]: Checked pairs total: 1543 [2021-11-12 22:37:03,116 INFO L133 LiptonReduction]: Total number of compositions: 157 [2021-11-12 22:37:03,125 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 80 flow [2021-11-12 22:37:03,145 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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) [2021-11-12 22:37:03,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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) [2021-11-12 22:37:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-12 22:37:03,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:03,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:37:03,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:37:03,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:03,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1057606279, now seen corresponding path program 1 times [2021-11-12 22:37:03,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:03,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931579422] [2021-11-12 22:37:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:03,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:03,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:03,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:03,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:37:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:03,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:37:03,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:37:03,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:37:04,267 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:04,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931579422] [2021-11-12 22:37:04,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931579422] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:37:04,268 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:37:04,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-12 22:37:04,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310019810] [2021-11-12 22:37:04,271 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:37:04,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:37:04,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:04,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:37:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:04,303 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-12 22:37:04,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:04,472 INFO L93 Difference]: Finished difference Result 204 states and 632 transitions. [2021-11-12 22:37:04,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:37:04,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 20 [2021-11-12 22:37:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:04,502 INFO L225 Difference]: With dead ends: 204 [2021-11-12 22:37:04,503 INFO L226 Difference]: Without dead ends: 197 [2021-11-12 22:37:04,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:37:04,511 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 135.66ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:04,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 38 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 135.66ms Time] [2021-11-12 22:37:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-12 22:37:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-12 22:37:04,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 3.13265306122449) internal successors, (614), 196 states have internal predecessors, (614), 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) [2021-11-12 22:37:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 614 transitions. [2021-11-12 22:37:04,623 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 614 transitions. Word has length 20 [2021-11-12 22:37:04,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:04,624 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 614 transitions. [2021-11-12 22:37:04,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-12 22:37:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 614 transitions. [2021-11-12 22:37:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 22:37:04,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:04,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:37:04,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:04,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:04,853 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:37:04,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:04,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2131303237, now seen corresponding path program 1 times [2021-11-12 22:37:04,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:04,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959888150] [2021-11-12 22:37:04,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:04,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:04,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:04,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:04,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:37:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:05,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:37:05,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:37:05,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:37:05,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:05,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959888150] [2021-11-12 22:37:05,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959888150] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:37:05,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:37:05,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2021-11-12 22:37:05,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741212803] [2021-11-12 22:37:05,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:37:05,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:37:05,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:05,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:37:05,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:37:05,544 INFO L87 Difference]: Start difference. First operand 197 states and 614 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-11-12 22:37:06,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:06,168 INFO L93 Difference]: Finished difference Result 271 states and 850 transitions. [2021-11-12 22:37:06,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:37:06,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2021-11-12 22:37:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:06,186 INFO L225 Difference]: With dead ends: 271 [2021-11-12 22:37:06,186 INFO L226 Difference]: Without dead ends: 271 [2021-11-12 22:37:06,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:37:06,188 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 91 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 451.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.78ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 554.66ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:06,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 13 Invalid, 178 Unknown, 0 Unchecked, 3.78ms Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 554.66ms Time] [2021-11-12 22:37:06,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-12 22:37:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 189. [2021-11-12 22:37:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 3.106382978723404) internal successors, (584), 188 states have internal predecessors, (584), 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) [2021-11-12 22:37:06,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 584 transitions. [2021-11-12 22:37:06,213 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 584 transitions. Word has length 21 [2021-11-12 22:37:06,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:06,214 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 584 transitions. [2021-11-12 22:37:06,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-11-12 22:37:06,214 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 584 transitions. [2021-11-12 22:37:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 22:37:06,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:06,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:37:06,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:06,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:06,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:37:06,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1735959559, now seen corresponding path program 2 times [2021-11-12 22:37:06,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:06,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685117371] [2021-11-12 22:37:06,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:37:06,428 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:06,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:06,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:06,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:37:06,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 22:37:06,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:37:06,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:37:06,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:06,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:06,833 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:06,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685117371] [2021-11-12 22:37:06,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685117371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:37:06,833 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:37:06,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 6] imperfect sequences [] total 7 [2021-11-12 22:37:06,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584454815] [2021-11-12 22:37:06,834 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:37:06,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:37:06,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:37:06,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:37:06,836 INFO L87 Difference]: Start difference. First operand 189 states and 584 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-11-12 22:37:07,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:07,370 INFO L93 Difference]: Finished difference Result 266 states and 823 transitions. [2021-11-12 22:37:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:37:07,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 21 [2021-11-12 22:37:07,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:07,375 INFO L225 Difference]: With dead ends: 266 [2021-11-12 22:37:07,375 INFO L226 Difference]: Without dead ends: 266 [2021-11-12 22:37:07,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:37:07,377 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 50 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 403.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.99ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 472.85ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:07,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 21 Invalid, 170 Unknown, 0 Unchecked, 2.99ms Time], IncrementalHoareTripleChecker [3 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 472.85ms Time] [2021-11-12 22:37:07,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-12 22:37:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 220. [2021-11-12 22:37:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 3.0913242009132422) internal successors, (677), 219 states have internal predecessors, (677), 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) [2021-11-12 22:37:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 677 transitions. [2021-11-12 22:37:07,399 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 677 transitions. Word has length 21 [2021-11-12 22:37:07,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:07,400 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 677 transitions. [2021-11-12 22:37:07,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-11-12 22:37:07,400 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 677 transitions. [2021-11-12 22:37:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 22:37:07,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:07,404 INFO L514 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] [2021-11-12 22:37:07,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:07,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:37:07,617 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:37:07,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:07,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1954968319, now seen corresponding path program 1 times [2021-11-12 22:37:07,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:07,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191635230] [2021-11-12 22:37:07,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:07,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:07,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:07,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:07,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:37:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:07,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:37:07,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:08,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:08,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:37:08,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191635230] [2021-11-12 22:37:08,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191635230] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:37:08,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1793400122] [2021-11-12 22:37:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:08,372 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:37:08,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:37:08,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:37:08,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-12 22:37:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:08,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:37:08,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:08,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:09,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1793400122] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:37:09,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281922669] [2021-11-12 22:37:09,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:09,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:37:09,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:37:09,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:37:09,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 22:37:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:09,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:37:09,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:09,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:10,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281922669] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:37:10,328 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:37:10,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 8, 8] total 32 [2021-11-12 22:37:10,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201243755] [2021-11-12 22:37:10,329 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:37:10,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-12 22:37:10,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:37:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-12 22:37:10,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2021-11-12 22:37:10,331 INFO L87 Difference]: Start difference. First operand 220 states and 677 transitions. Second operand has 32 states, 32 states have (on average 2.53125) internal successors, (81), 32 states have internal predecessors, (81), 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) [2021-11-12 22:37:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:37:14,216 INFO L93 Difference]: Finished difference Result 894 states and 2664 transitions. [2021-11-12 22:37:14,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-12 22:37:14,218 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.53125) internal successors, (81), 32 states have internal predecessors, (81), 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 22 [2021-11-12 22:37:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:37:14,227 INFO L225 Difference]: With dead ends: 894 [2021-11-12 22:37:14,227 INFO L226 Difference]: Without dead ends: 894 [2021-11-12 22:37:14,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=854, Invalid=2338, Unknown=0, NotChecked=0, Total=3192 [2021-11-12 22:37:14,230 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 599 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1967.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.76ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2327.72ms IncrementalHoareTripleChecker+Time [2021-11-12 22:37:14,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 78 Invalid, 1232 Unknown, 0 Unchecked, 16.76ms Time], IncrementalHoareTripleChecker [81 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 2327.72ms Time] [2021-11-12 22:37:14,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-11-12 22:37:14,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 290. [2021-11-12 22:37:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 3.359861591695502) internal successors, (971), 289 states have internal predecessors, (971), 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) [2021-11-12 22:37:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 971 transitions. [2021-11-12 22:37:14,268 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 971 transitions. Word has length 22 [2021-11-12 22:37:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:37:14,269 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 971 transitions. [2021-11-12 22:37:14,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.53125) internal successors, (81), 32 states have internal predecessors, (81), 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) [2021-11-12 22:37:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 971 transitions. [2021-11-12 22:37:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:37:14,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:37:14,274 INFO L514 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] [2021-11-12 22:37:14,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:14,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:14,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:37:14,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:37:14,906 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:37:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:37:14,907 INFO L85 PathProgramCache]: Analyzing trace with hash -98057531, now seen corresponding path program 1 times [2021-11-12 22:37:14,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:37:14,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875366911] [2021-11-12 22:37:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:37:14,908 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:37:14,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:37:14,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:37:14,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:37:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:37:15,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:37:15,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:37:16,023 INFO L354 Elim1Store]: treesize reduction 234, result has 14.9 percent of original size [2021-11-12 22:37:16,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 216 treesize of output 118 [2021-11-12 22:37:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:37:27,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:37:29,054 INFO L354 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2021-11-12 22:37:29,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 393 treesize of output 161 [2021-11-12 22:42:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:42:05,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:05,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875366911] [2021-11-12 22:42:05,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875366911] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:42:05,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1573223131] [2021-11-12 22:42:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:05,294 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:42:05,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:42:05,295 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:42:05,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f254564c-ca80-466f-a6d8-d3c84d860248/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 22:42:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:05,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-12 22:42:05,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:05,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:42:05,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:42:05,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:42:05,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:42:05,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:42:05,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:42:05,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2021-11-12 22:42:08,734 INFO L354 Elim1Store]: treesize reduction 815, result has 6.5 percent of original size [2021-11-12 22:42:08,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 75 treesize of output 95 [2021-11-12 22:44:59,867 WARN L227 SmtUtils]: Spent 2.77m on a formula simplification. DAG size of input: 344 DAG size of output: 120 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:44:59,868 INFO L354 Elim1Store]: treesize reduction 1534, result has 21.3 percent of original size [2021-11-12 22:44:59,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 113 treesize of output 468