./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:30:35,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:30:35,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:30:35,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:30:35,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:30:35,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:30:35,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:30:35,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:30:35,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:30:35,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:30:35,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:30:35,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:30:35,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:30:35,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:30:35,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:30:35,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:30:35,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:30:35,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:30:35,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:30:35,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:30:35,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:30:35,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:30:35,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:30:35,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:30:35,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:30:35,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:30:35,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:30:35,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:30:35,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:30:35,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:30:35,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:30:35,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:30:35,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:30:35,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:30:35,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:30:35,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:30:35,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:30:35,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:30:35,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:30:35,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:30:35,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:30:35,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:30:35,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:30:35,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:30:35,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:30:35,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:30:35,192 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:30:35,192 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:30:35,193 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:30:35,193 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:30:35,199 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:30:35,200 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:30:35,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:30:35,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:30:35,201 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:30:35,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:30:35,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:30:35,202 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:30:35,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:30:35,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:30:35,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:30:35,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:30:35,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:30:35,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:30:35,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:30:35,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:30:35,205 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:30:35,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:30:35,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:30:35,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:30:35,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:30:35,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:30:35,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:30:35,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:35,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:30:35,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:30:35,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:30:35,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:30:35,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:30:35,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:30:35,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:30:35,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:30:35,211 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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 [2021-11-13 01:30:35,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:30:35,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:30:35,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:30:35,598 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:30:35,599 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:30:35,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-13 01:30:35,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/db8338a31/8d5e7c794e374f468b3be9abc546b5cd/FLAG86cf7c857 [2021-11-13 01:30:36,202 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:30:36,203 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-13 01:30:36,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/db8338a31/8d5e7c794e374f468b3be9abc546b5cd/FLAG86cf7c857 [2021-11-13 01:30:36,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/db8338a31/8d5e7c794e374f468b3be9abc546b5cd [2021-11-13 01:30:36,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:30:36,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:30:36,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:36,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:30:36,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:30:36,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:36" (1/1) ... [2021-11-13 01:30:36,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf9ad42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:36, skipping insertion in model container [2021-11-13 01:30:36,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:36" (1/1) ... [2021-11-13 01:30:36,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:30:36,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:36,847 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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-13 01:30:36,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:36,869 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) [2021-11-13 01:30:36,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f23a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:36, skipping insertion in model container [2021-11-13 01:30:36,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:36,870 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:30:36,872 INFO L158 Benchmark]: Toolchain (without parser) took 330.96ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 92.2MB in the end (delta: -10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:30:36,873 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 98.0MB in the end (delta: -7.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:30:36,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.50ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 92.2MB in the end (delta: -11.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:30:36,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 98.0MB in the end (delta: -7.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.50ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 92.2MB in the end (delta: -11.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 163]: 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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:30:39,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:30:39,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:30:39,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:30:39,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:30:39,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:30:39,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:30:39,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:30:39,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:30:39,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:30:39,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:30:39,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:30:39,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:30:39,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:30:39,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:30:39,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:30:39,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:30:39,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:30:39,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:30:39,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:30:39,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:30:39,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:30:39,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:30:39,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:30:39,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:30:39,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:30:39,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:30:39,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:30:39,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:30:39,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:30:39,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:30:39,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:30:39,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:30:39,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:30:39,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:30:39,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:30:39,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:30:39,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:30:39,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:30:39,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:30:39,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:30:39,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:30:39,331 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:30:39,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:30:39,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:30:39,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:30:39,333 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:30:39,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:30:39,334 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:30:39,334 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:30:39,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:30:39,334 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:30:39,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:30:39,337 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:30:39,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:30:39,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:30:39,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:30:39,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:30:39,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:30:39,338 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:30:39,338 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:30:39,338 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:30:39,339 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:30:39,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:30:39,339 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:30:39,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:30:39,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:30:39,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:30:39,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:30:39,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:39,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:30:39,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:30:39,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:30:39,341 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:30:39,341 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:30:39,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:30:39,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:30:39,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:30:39,342 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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 [2021-11-13 01:30:39,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:30:39,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:30:39,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:30:39,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:30:39,758 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:30:39,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-13 01:30:39,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/3445f9bcc/68898304d8bf4fbd921b1b4d44c338bf/FLAGb91d34461 [2021-11-13 01:30:40,396 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:30:40,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-13 01:30:40,408 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/3445f9bcc/68898304d8bf4fbd921b1b4d44c338bf/FLAGb91d34461 [2021-11-13 01:30:40,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/data/3445f9bcc/68898304d8bf4fbd921b1b4d44c338bf [2021-11-13 01:30:40,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:30:40,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:30:40,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:40,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:30:40,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:30:40,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:40" (1/1) ... [2021-11-13 01:30:40,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346a2103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:40, skipping insertion in model container [2021-11-13 01:30:40,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:30:40" (1/1) ... [2021-11-13 01:30:40,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:30:40,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:40,951 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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-13 01:30:40,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:40,997 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:30:41,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:30:41,069 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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-13 01:30:41,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:41,087 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:30:41,120 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_2ec6ba9e-8414-4784-a46c-e1f159212a2c/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-13 01:30:41,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:30:41,140 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:30:41,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41 WrapperNode [2021-11-13 01:30:41,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:30:41,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:41,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:30:41,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:30:41,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:30:41,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:30:41,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:30:41,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:30:41,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:30:41,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:30:41,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:30:41,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:30:41,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (1/1) ... [2021-11-13 01:30:41,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:30:41,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:30:41,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:30:41,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:30:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:30:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:30:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:30:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-13 01:30:41,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-13 01:30:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-13 01:30:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-13 01:30:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-13 01:30:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-13 01:30:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-13 01:30:41,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-13 01:30:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 01:30:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 01:30:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:30:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:30:41,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:30:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:30:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:30:41,348 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 01:30:42,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:30:42,258 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-13 01:30:42,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:42 BoogieIcfgContainer [2021-11-13 01:30:42,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:30:42,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:30:42,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:30:42,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:30:42,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:30:40" (1/3) ... [2021-11-13 01:30:42,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5015e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:42, skipping insertion in model container [2021-11-13 01:30:42,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:30:41" (2/3) ... [2021-11-13 01:30:42,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5015e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:30:42, skipping insertion in model container [2021-11-13 01:30:42,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:42" (3/3) ... [2021-11-13 01:30:42,274 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2021-11-13 01:30:42,280 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 01:30:42,280 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:30:42,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:30:42,281 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 01:30:42,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,351 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,356 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,356 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,357 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,357 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,358 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,358 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,359 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,359 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,359 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,360 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,369 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,396 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,396 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,396 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,397 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,397 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,397 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,397 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,398 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,398 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,398 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,399 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,399 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,399 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,399 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,399 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,399 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,401 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,406 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,406 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,407 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,415 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,415 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,418 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,440 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,443 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,443 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,443 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,443 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,444 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,444 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,444 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,444 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,444 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,445 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,453 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,453 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,453 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,453 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,454 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,454 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:30:42,456 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-13 01:30:42,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:30:42,525 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 [2021-11-13 01:30:42,526 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-13 01:30:42,548 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-13 01:30:42,568 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 236 transitions, 504 flow [2021-11-13 01:30:42,572 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 236 transitions, 504 flow [2021-11-13 01:30:42,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 230 places, 236 transitions, 504 flow [2021-11-13 01:30:42,729 INFO L129 PetriNetUnfolder]: 19/232 cut-off events. [2021-11-13 01:30:42,729 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-13 01:30:42,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 232 events. 19/232 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 118 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2021-11-13 01:30:42,746 INFO L116 LiptonReduction]: Number of co-enabled transitions 2000 [2021-11-13 01:31:13,657 INFO L131 LiptonReduction]: Checked pairs total: 4223 [2021-11-13 01:31:13,658 INFO L133 LiptonReduction]: Total number of compositions: 234 [2021-11-13 01:31:13,666 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 42 transitions, 116 flow [2021-11-13 01:31:13,757 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 854 states, 853 states have (on average 4.173505275498242) internal successors, (3560), 853 states have internal predecessors, (3560), 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) [2021-11-13 01:31:13,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 854 states, 853 states have (on average 4.173505275498242) internal successors, (3560), 853 states have internal predecessors, (3560), 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) [2021-11-13 01:31:13,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 01:31:13,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:13,801 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, 1, 1, 1, 1] [2021-11-13 01:31:13,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:31:13,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:13,810 INFO L85 PathProgramCache]: Analyzing trace with hash -586739022, now seen corresponding path program 1 times [2021-11-13 01:31:13,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:13,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063952312] [2021-11-13 01:31:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:13,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:13,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:13,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:13,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:31:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:14,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:31:14,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:14,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:14,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:14,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:14,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:14,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063952312] [2021-11-13 01:31:14,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063952312] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:14,504 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:14,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 01:31:14,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916442552] [2021-11-13 01:31:14,507 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:14,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:31:14,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:31:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:31:14,538 INFO L87 Difference]: Start difference. First operand has 854 states, 853 states have (on average 4.173505275498242) internal successors, (3560), 853 states have internal predecessors, (3560), 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 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-13 01:31:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:15,374 INFO L93 Difference]: Finished difference Result 1194 states and 5024 transitions. [2021-11-13 01:31:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:31:15,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 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 27 [2021-11-13 01:31:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:15,414 INFO L225 Difference]: With dead ends: 1194 [2021-11-13 01:31:15,419 INFO L226 Difference]: Without dead ends: 1194 [2021-11-13 01:31:15,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:31:15,424 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 85 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 603.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.53ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 744.17ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:15,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 35 Invalid, 267 Unknown, 0 Unchecked, 6.53ms Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 744.17ms Time] [2021-11-13 01:31:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-11-13 01:31:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1024. [2021-11-13 01:31:15,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1023 states have (on average 4.195503421309873) internal successors, (4292), 1023 states have internal predecessors, (4292), 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) [2021-11-13 01:31:15,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 4292 transitions. [2021-11-13 01:31:15,602 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 4292 transitions. Word has length 27 [2021-11-13 01:31:15,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:15,603 INFO L470 AbstractCegarLoop]: Abstraction has 1024 states and 4292 transitions. [2021-11-13 01:31:15,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-13 01:31:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 4292 transitions. [2021-11-13 01:31:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 01:31:15,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:15,615 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, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:15,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:15,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:15,836 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:31:15,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1921655865, now seen corresponding path program 1 times [2021-11-13 01:31:15,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:15,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397837508] [2021-11-13 01:31:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:15,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:15,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:15,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:15,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:31:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:16,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:31:16,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:16,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:16,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:16,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397837508] [2021-11-13 01:31:16,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397837508] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:16,273 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:16,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 01:31:16,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364819912] [2021-11-13 01:31:16,273 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:16,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:31:16,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:16,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:31:16,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:31:16,276 INFO L87 Difference]: Start difference. First operand 1024 states and 4292 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-13 01:31:17,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:17,460 INFO L93 Difference]: Finished difference Result 1344 states and 5652 transitions. [2021-11-13 01:31:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:31:17,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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 29 [2021-11-13 01:31:17,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:17,480 INFO L225 Difference]: With dead ends: 1344 [2021-11-13 01:31:17,481 INFO L226 Difference]: Without dead ends: 1344 [2021-11-13 01:31:17,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:31:17,484 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 89 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 858.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.17ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1002.10ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:17,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 70 Invalid, 364 Unknown, 0 Unchecked, 5.17ms Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1002.10ms Time] [2021-11-13 01:31:17,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2021-11-13 01:31:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1184. [2021-11-13 01:31:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1183 states have (on average 4.202874049027895) internal successors, (4972), 1183 states have internal predecessors, (4972), 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) [2021-11-13 01:31:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 4972 transitions. [2021-11-13 01:31:17,604 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 4972 transitions. Word has length 29 [2021-11-13 01:31:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:17,605 INFO L470 AbstractCegarLoop]: Abstraction has 1184 states and 4972 transitions. [2021-11-13 01:31:17,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-13 01:31:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 4972 transitions. [2021-11-13 01:31:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 01:31:17,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:17,612 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, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:17,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:17,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:17,824 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:31:17,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:17,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1486786055, now seen corresponding path program 2 times [2021-11-13 01:31:17,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:17,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320155804] [2021-11-13 01:31:17,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:31:17,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:17,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:17,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:17,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:31:18,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 01:31:18,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:31:18,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:31:18,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:18,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:18,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:18,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320155804] [2021-11-13 01:31:18,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320155804] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:18,319 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:18,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 01:31:18,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465928985] [2021-11-13 01:31:18,320 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:18,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:31:18,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:18,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:31:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:31:18,321 INFO L87 Difference]: Start difference. First operand 1184 states and 4972 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 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) [2021-11-13 01:31:18,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:18,701 INFO L93 Difference]: Finished difference Result 1447 states and 5879 transitions. [2021-11-13 01:31:18,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:31:18,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 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 29 [2021-11-13 01:31:18,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:18,719 INFO L225 Difference]: With dead ends: 1447 [2021-11-13 01:31:18,719 INFO L226 Difference]: Without dead ends: 1185 [2021-11-13 01:31:18,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:31:18,721 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 291.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.69ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 340.35ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:18,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 24 Invalid, 124 Unknown, 0 Unchecked, 1.69ms Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 340.35ms Time] [2021-11-13 01:31:18,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-13 01:31:18,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2021-11-13 01:31:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1184 states have (on average 4.200168918918919) internal successors, (4973), 1184 states have internal predecessors, (4973), 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) [2021-11-13 01:31:18,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 4973 transitions. [2021-11-13 01:31:18,820 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 4973 transitions. Word has length 29 [2021-11-13 01:31:18,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:18,821 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 4973 transitions. [2021-11-13 01:31:18,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 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) [2021-11-13 01:31:18,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 4973 transitions. [2021-11-13 01:31:18,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 01:31:18,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:18,828 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:18,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-13 01:31:19,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:19,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:31:19,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:19,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1199258482, now seen corresponding path program 1 times [2021-11-13 01:31:19,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:19,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445085239] [2021-11-13 01:31:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:19,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:19,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:19,047 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:19,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:31:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:19,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 01:31:19,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:19,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 01:31:20,082 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:20,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445085239] [2021-11-13 01:31:20,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445085239] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:31:20,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:31:20,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2021-11-13 01:31:20,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398603347] [2021-11-13 01:31:20,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:20,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:31:20,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:20,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:31:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:31:20,085 INFO L87 Difference]: Start difference. First operand 1185 states and 4973 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-13 01:31:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:20,771 INFO L93 Difference]: Finished difference Result 2075 states and 8719 transitions. [2021-11-13 01:31:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:31:20,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-11-13 01:31:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:20,798 INFO L225 Difference]: With dead ends: 2075 [2021-11-13 01:31:20,798 INFO L226 Difference]: Without dead ends: 2075 [2021-11-13 01:31:20,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:31:20,802 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 73 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 495.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.55ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 574.29ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:20,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 29 Invalid, 172 Unknown, 0 Unchecked, 2.55ms Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 574.29ms Time] [2021-11-13 01:31:20,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2021-11-13 01:31:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1345. [2021-11-13 01:31:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1344 states have (on average 4.206101190476191) internal successors, (5653), 1344 states have internal predecessors, (5653), 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) [2021-11-13 01:31:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 5653 transitions. [2021-11-13 01:31:20,906 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 5653 transitions. Word has length 30 [2021-11-13 01:31:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:20,907 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 5653 transitions. [2021-11-13 01:31:20,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-13 01:31:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 5653 transitions. [2021-11-13 01:31:20,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 01:31:20,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:20,915 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:20,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:21,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:21,127 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:31:21,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1325471844, now seen corresponding path program 2 times [2021-11-13 01:31:21,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:21,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513146104] [2021-11-13 01:31:21,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:31:21,129 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:21,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:21,129 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:21,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:31:21,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 01:31:21,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:31:21,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:31:21,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 01:31:21,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 01:31:21,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:31:21,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513146104] [2021-11-13 01:31:21,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513146104] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:21,704 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:21,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 01:31:21,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111264588] [2021-11-13 01:31:21,705 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:21,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:31:21,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:31:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:31:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:31:21,706 INFO L87 Difference]: Start difference. First operand 1345 states and 5653 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:22,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:22,478 INFO L93 Difference]: Finished difference Result 2075 states and 8673 transitions. [2021-11-13 01:31:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 01:31:22,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-13 01:31:22,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:22,503 INFO L225 Difference]: With dead ends: 2075 [2021-11-13 01:31:22,503 INFO L226 Difference]: Without dead ends: 2075 [2021-11-13 01:31:22,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:31:22,504 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 272 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 545.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.74ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 667.12ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:22,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 33 Invalid, 240 Unknown, 0 Unchecked, 3.74ms Time], IncrementalHoareTripleChecker [21 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 667.12ms Time] [2021-11-13 01:31:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2021-11-13 01:31:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1185. [2021-11-13 01:31:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1184 states have (on average 4.112331081081081) internal successors, (4869), 1184 states have internal predecessors, (4869), 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) [2021-11-13 01:31:22,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 4869 transitions. [2021-11-13 01:31:22,602 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 4869 transitions. Word has length 30 [2021-11-13 01:31:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:22,603 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 4869 transitions. [2021-11-13 01:31:22,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 4869 transitions. [2021-11-13 01:31:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 01:31:22,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:22,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:22,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:22,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:31:22,823 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-13 01:31:22,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:22,823 INFO L85 PathProgramCache]: Analyzing trace with hash -745199502, now seen corresponding path program 1 times [2021-11-13 01:31:22,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:31:22,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350728252] [2021-11-13 01:31:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:22,824 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:31:22,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:31:22,825 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:31:22,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:31:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:23,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 01:31:23,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:23,372 INFO L354 Elim1Store]: treesize reduction 163, result has 15.1 percent of original size [2021-11-13 01:31:23,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 39 [2021-11-13 01:31:26,917 INFO L354 Elim1Store]: treesize reduction 1262, result has 5.7 percent of original size [2021-11-13 01:31:26,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 84 treesize of output 104 [2021-11-13 01:34:21,721 WARN L227 SmtUtils]: Spent 2.82m on a formula simplification. DAG size of input: 375 DAG size of output: 127 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-13 01:34:21,723 INFO L354 Elim1Store]: treesize reduction 2057, result has 17.4 percent of original size [2021-11-13 01:34:21,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 122 treesize of output 477 [2021-11-13 01:40:32,946 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-13 01:40:32,947 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:32,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350728252] [2021-11-13 01:40:32,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-13 01:40:32,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1364467514] [2021-11-13 01:40:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:32,949 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:40:32,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:40:32,951 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:40:32,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-13 01:40:32,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-13 01:40:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:33,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-13 01:40:33,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:33,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-13 01:40:33,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791646594] [2021-11-13 01:40:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:33,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:40:33,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:40:33,649 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:40:33,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 01:40:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:33,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-13 01:40:33,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:33,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-13 01:40:33,866 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:33,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 01:40:33,866 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-13 01:40:33,866 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 01:40:33,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-13 01:40:33,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2021-11-13 01:40:33,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2021-11-13 01:40:33,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2021-11-13 01:40:33,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2021-11-13 01:40:33,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:34,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:34,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-13 01:40:34,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ec6ba9e-8414-4784-a46c-e1f159212a2c/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 01:40:34,484 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-11-13 01:40:34,487 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 01:40:34,487 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:40:34,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:40:34 BasicIcfg [2021-11-13 01:40:34,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:40:34,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:40:34,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:40:34,526 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:40:34,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:30:42" (3/4) ... [2021-11-13 01:40:34,530 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:40:34,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:40:34,532 INFO L158 Benchmark]: Toolchain (without parser) took 593810.76ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 55.0MB in the beginning and 44.7MB in the end (delta: 10.2MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2021-11-13 01:40:34,532 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:34,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.86ms. Allocated memory is still 73.4MB. Free memory was 54.7MB in the beginning and 51.7MB in the end (delta: 2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:40:34,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.45ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 49.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:40:34,536 INFO L158 Benchmark]: Boogie Preprocessor took 71.79ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 47.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:40:34,536 INFO L158 Benchmark]: RCFGBuilder took 993.55ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 47.0MB in the beginning and 51.3MB in the end (delta: -4.2MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-11-13 01:40:34,537 INFO L158 Benchmark]: TraceAbstraction took 592260.39ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 50.8MB in the beginning and 44.7MB in the end (delta: 6.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2021-11-13 01:40:34,537 INFO L158 Benchmark]: Witness Printer took 5.11ms. Allocated memory is still 125.8MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:34,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.86ms. Allocated memory is still 73.4MB. Free memory was 54.7MB in the beginning and 51.7MB in the end (delta: 2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.45ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 49.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.79ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 47.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 993.55ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 47.0MB in the beginning and 51.3MB in the end (delta: -4.2MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * TraceAbstraction took 592260.39ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 50.8MB in the beginning and 44.7MB in the end (delta: 6.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 5.11ms. Allocated memory is still 125.8MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.1s, 230 PlacesBefore, 49 PlacesAfterwards, 236 TransitionsBefore, 42 TransitionsAfterwards, 2000 CoEnabledTransitionPairs, 8 FixpointIterations, 156 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 30 TrivialYvCompositions, 8 ConcurrentYvCompositions, 13 ChoiceCompositions, 234 TotalNumberOfCompositions, 4223 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2777, positive: 2661, positive conditional: 0, positive unconditional: 2661, negative: 116, negative conditional: 0, negative unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1300, positive: 1276, positive conditional: 0, positive unconditional: 1276, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1300, positive: 1275, positive conditional: 0, positive unconditional: 1275, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 927, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 815, negative conditional: 0, negative unconditional: 815, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2777, positive: 1385, positive conditional: 0, positive unconditional: 1385, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 1300, unknown conditional: 0, unknown unconditional: 1300] , Statistics on independence cache: Total cache size (in pairs): 195, Positive cache size: 183, Positive conditional cache size: 0, Positive unconditional cache size: 183, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 154]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40] 0 int* q1; [L41] 0 int* q2; [L42] 0 int i, j, total, C, N, M, q1_front, q1_back, q2_front, q2_back, n1, n2; [L124] 0 pthread_t t1, t2, t3, t4; [L126] 0 C = __VERIFIER_nondet_int() [L127] 0 M = __VERIFIER_nondet_int() [L128] 0 N = __VERIFIER_nondet_int() [L130] 0 q1_front = __VERIFIER_nondet_int() [L131] 0 q1_back = __VERIFIER_nondet_int() [L132] 0 q2_front = __VERIFIER_nondet_int() [L133] 0 q2_back = __VERIFIER_nondet_int() [L135] 0 n1 = __VERIFIER_nondet_int() [L136] 0 n2 = __VERIFIER_nondet_int() [L137] CALL, EXPR 0 create_fresh_int_array(n1) [L160] CALL 0 assume_abort_if_not(size >= 0) [L37] COND TRUE 0 !cond [L160] RET 0 assume_abort_if_not(size >= 0) [L161] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE 0 !(!cond) [L161] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L163] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L164] 0 int i = 0; [L164] COND TRUE 0 i < size [L165] 0 arr[i] = __VERIFIER_nondet_int() [L164] 0 i++ [L164] COND FALSE 0 !(i < size) [L167] 0 return arr; [L137] RET, EXPR 0 create_fresh_int_array(n1) [L137] 0 q1 = create_fresh_int_array(n1) [L138] CALL, EXPR 0 create_fresh_int_array(n2) [L160] CALL 0 assume_abort_if_not(size >= 0) [L37] COND TRUE 0 !cond [L160] RET 0 assume_abort_if_not(size >= 0) [L161] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE 0 !(!cond) [L161] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L163] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L164] 0 int i = 0; [L164] COND FALSE 0 !(i < size) [L167] 0 return arr; [L138] RET, EXPR 0 create_fresh_int_array(n2) [L138] 0 q2 = create_fresh_int_array(n2) [L140] CALL 0 assume_abort_if_not(C > -2147483648) [L37] COND TRUE 0 !cond [L140] RET 0 assume_abort_if_not(C > -2147483648) [L141] CALL 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L37] COND TRUE 0 !cond [L141] RET 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L144] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L49] 1 _Bool cond = i < N; [L51] COND TRUE 1 \read(cond) [L53] EXPR 1 q1_back >= 0 && q1_back < n1 && q1[q1_back] == C [L53] EXPR 1 q1[q1_back] [L53] EXPR 1 q1_back >= 0 && q1_back < n1 && q1[q1_back] == C [L53] CALL 1 assume_abort_if_not(q1_back >= 0 && q1_back < n1 && q1[q1_back] == C) [L37] COND TRUE 1 !cond [L53] RET 1 assume_abort_if_not(q1_back >= 0 && q1_back < n1 && q1[q1_back] == C) [L54] 1 q1_back++ [L145] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L69] 2 _Bool cond = j < M; [L71] COND FALSE 2 !(\read(cond)) [L84] 2 return 0; [L146] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) [L89] 3 _Bool cond = i < N || q1_front < q1_back; [L91] COND TRUE 3 \read(cond) [L93] CALL 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L37] COND TRUE 3 !cond [L93] RET 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L94] EXPR 3 q1[q1_front] [L94] CALL, EXPR 3 plus(total, q1[q1_front]) [L171] CALL 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L37] COND TRUE 3 !cond [L171] RET 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L172] CALL 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND TRUE 3 !cond [L172] RET 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L173] 3 return a + b; [L94] RET, EXPR 3 plus(total, q1[q1_front]) [L94] 3 total = plus(total, q1[q1_front]) [L95] 3 q1_front++ [L147] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L107] 4 _Bool cond = j < M || q2_front < q2_back; [L109] COND FALSE 4 !(\read(cond)) [L120] 4 return 0; [L148] 0 \read(t1) [L57] 1 i++ [L60] 1 cond = i < N [L98] 3 cond = i < N || q1_front < q1_back [L102] 3 return 0; [L51] COND FALSE 1 !(\read(cond)) [L64] 1 return 0; [L148] FCALL, JOIN 1 pthread_join(t1, 0) [L149] 0 \read(t2) [L149] FCALL, JOIN 2 pthread_join(t2, 0) [L150] 0 \read(t3) [L150] FCALL, JOIN 3 pthread_join(t3, 0) [L151] 0 \read(t4) [L151] FCALL, JOIN 4 pthread_join(t4, 0) [L153] CALL 0 assume_abort_if_not(total <= 0) [L37] COND FALSE 0 !(!cond) [L153] RET 0 assume_abort_if_not(total <= 0) [L154] 0 reach_error() - UnprovableResult [Line: 145]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 147]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 144]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 146]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 252 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 592.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 31.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 558 SdHoareTripleChecker+Valid, 3328.03ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 558 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 2793.87ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 836 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1127 IncrementalHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 51 mSDtfsCounter, 1127 mSolverCounterSat, 19.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 293 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1345occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 1950 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 552.2s InterpolantComputationTime, 177 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 917 SizeOfPredicates, 65 NumberOfNonLiveVariables, 825 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN