./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:29,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:29,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:29,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:29,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:29,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:29,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:29,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:29,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:29,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:29,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:29,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:29,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:29,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:29,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:29,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:29,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:29,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:29,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:29,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:29,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:29,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:29,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:29,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:29,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:29,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:29,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:29,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:29,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:29,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:29,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:29,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:29,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:29,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:29,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:29,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:29,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:29,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:29,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:29,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:29,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:29,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:53:29,287 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:29,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:29,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:29,293 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:29,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:29,294 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:29,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:29,294 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:29,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:29,295 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:29,296 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:29,296 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:29,296 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:29,296 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:29,297 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:29,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:29,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:29,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:29,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:29,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:29,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:29,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:29,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:29,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:29,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:29,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:29,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:29,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:29,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:29,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:29,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:29,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:29,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:29,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:29,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:29,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:29,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:29,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:29,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:29,304 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_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 [2021-11-07 00:53:29,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:29,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:29,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:29,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:29,612 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:29,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2021-11-07 00:53:29,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/9fe0b1bd4/31db41b9235045b2a4586b45a317f4e9/FLAGe06baf617 [2021-11-07 00:53:30,112 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:30,113 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2021-11-07 00:53:30,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/9fe0b1bd4/31db41b9235045b2a4586b45a317f4e9/FLAGe06baf617 [2021-11-07 00:53:30,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/9fe0b1bd4/31db41b9235045b2a4586b45a317f4e9 [2021-11-07 00:53:30,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:30,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:30,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:30,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:30,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:30,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:30" (1/1) ... [2021-11-07 00:53:30,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5965a706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30, skipping insertion in model container [2021-11-07 00:53:30,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:30" (1/1) ... [2021-11-07 00:53:30,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:30,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:30,749 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_2873470f-0b6f-4e43-8676-59048c6c51ac/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c[2553,2566] [2021-11-07 00:53:30,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:30,768 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:53:30,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35c2227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30, skipping insertion in model container [2021-11-07 00:53:30,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:30,769 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:53:30,772 INFO L168 Benchmark]: Toolchain (without parser) took 273.32 ms. Allocated memory is still 102.8 MB. Free memory was 59.9 MB in the beginning and 77.2 MB in the end (delta: -17.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:30,773 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 76.6 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:30,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.98 ms. Allocated memory is still 102.8 MB. Free memory was 59.7 MB in the beginning and 77.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:30,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 76.6 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.98 ms. Allocated memory is still 102.8 MB. Free memory was 59.7 MB in the beginning and 77.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 109]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:33,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:33,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:33,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:33,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:33,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:33,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:33,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:33,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:33,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:33,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:33,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:33,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:33,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:33,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:33,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:33,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:33,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:33,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:33,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:33,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:33,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:33,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:33,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:33,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:33,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:33,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:33,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:33,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:33,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:33,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:33,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:33,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:33,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:33,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:33,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:33,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:33,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:33,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:33,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:33,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:33,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 00:53:33,207 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:33,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:33,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:33,209 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:33,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:33,210 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:33,211 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:33,211 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:33,212 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:33,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:33,213 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:33,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:33,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:33,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:33,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:33,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:33,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:33,217 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:53:33,217 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:53:33,218 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:33,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:33,219 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:33,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:33,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:33,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:53:33,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:33,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:33,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:33,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:33,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:33,222 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:53:33,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:33,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:33,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:33,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:33,227 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_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abac63211b9980a3b9079d9eb140a85fbc6c5adec6517ed998cc9e140b19342 [2021-11-07 00:53:33,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:33,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:33,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:33,689 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:33,690 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:33,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2021-11-07 00:53:33,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/2200c31e1/0bacfba4afc04ed5b9da0fdb36e720e7/FLAG15cc09032 [2021-11-07 00:53:34,252 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:34,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c [2021-11-07 00:53:34,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/2200c31e1/0bacfba4afc04ed5b9da0fdb36e720e7/FLAG15cc09032 [2021-11-07 00:53:34,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/data/2200c31e1/0bacfba4afc04ed5b9da0fdb36e720e7 [2021-11-07 00:53:34,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:34,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:34,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:34,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:34,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:34,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:34" (1/1) ... [2021-11-07 00:53:34,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfebd50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:34, skipping insertion in model container [2021-11-07 00:53:34,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:34" (1/1) ... [2021-11-07 00:53:34,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:34,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:34,860 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_2873470f-0b6f-4e43-8676-59048c6c51ac/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c[2553,2566] [2021-11-07 00:53:34,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:34,892 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:53:34,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:34,969 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_2873470f-0b6f-4e43-8676-59048c6c51ac/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c[2553,2566] [2021-11-07 00:53:34,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:34,999 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:35,049 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_2873470f-0b6f-4e43-8676-59048c6c51ac/sv-benchmarks/c/weaver/popl20-more-min-array.wvr.c[2553,2566] [2021-11-07 00:53:35,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:35,075 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:35,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35 WrapperNode [2021-11-07 00:53:35,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:35,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:35,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:35,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:35,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:35,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:35,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:35,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:35,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:53:35,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:53:35,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:53:35,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:53:35,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (1/1) ... [2021-11-07 00:53:35,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:35,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:35,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:53:35,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:53:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 00:53:35,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 00:53:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 00:53:35,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 00:53:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 00:53:35,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 00:53:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:53:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:53:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 00:53:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 00:53:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:53:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:53:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:53:35,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:53:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:53:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:53:35,320 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 00:53:36,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:53:36,097 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-07 00:53:36,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:36 BoogieIcfgContainer [2021-11-07 00:53:36,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:53:36,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:53:36,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:53:36,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:53:36,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:34" (1/3) ... [2021-11-07 00:53:36,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7670e808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:36, skipping insertion in model container [2021-11-07 00:53:36,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:35" (2/3) ... [2021-11-07 00:53:36,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7670e808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:36, skipping insertion in model container [2021-11-07 00:53:36,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:36" (3/3) ... [2021-11-07 00:53:36,107 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array.wvr.c [2021-11-07 00:53:36,112 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 00:53:36,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:53:36,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 00:53:36,113 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 00:53:36,145 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,146 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,146 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,146 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,146 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,147 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,148 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,148 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,149 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,149 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,149 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,149 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,150 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,150 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,150 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,150 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,150 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,151 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,151 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,152 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,152 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,152 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,152 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,152 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,153 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,153 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,154 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,154 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,154 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,155 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,155 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,155 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,155 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,155 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,156 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,156 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,156 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,157 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,176 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,177 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,178 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,179 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,180 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,180 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,181 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,181 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,181 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,181 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,181 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,182 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,185 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,189 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,191 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,192 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:36,198 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-07 00:53:36,242 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:53:36,249 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:53:36,249 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 00:53:36,264 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 00:53:36,274 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 136 transitions, 296 flow [2021-11-07 00:53:36,277 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 136 transitions, 296 flow [2021-11-07 00:53:36,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 136 transitions, 296 flow [2021-11-07 00:53:36,336 INFO L129 PetriNetUnfolder]: 12/133 cut-off events. [2021-11-07 00:53:36,336 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-07 00:53:36,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 12/133 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2021-11-07 00:53:36,345 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2021-11-07 00:53:51,246 INFO L131 LiptonReduction]: Checked pairs total: 1504 [2021-11-07 00:53:51,246 INFO L133 LiptonReduction]: Total number of compositions: 127 [2021-11-07 00:53:51,254 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 80 flow [2021-11-07 00:53:51,271 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 00:53:51,283 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:51,284 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:51,284 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:51,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1569669511, now seen corresponding path program 1 times [2021-11-07 00:53:51,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:51,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533547462] [2021-11-07 00:53:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:51,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:51,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:51,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:51,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:53:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:51,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:53:51,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:51,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:51,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:52,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:52,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533547462] [2021-11-07 00:53:52,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533547462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:52,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:52,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-07 00:53:52,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540787973] [2021-11-07 00:53:52,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:53:52,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:52,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:53:52,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:52,054 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:52,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:52,141 INFO L93 Difference]: Finished difference Result 204 states and 632 transitions. [2021-11-07 00:53:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:53:52,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-07 00:53:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:52,162 INFO L225 Difference]: With dead ends: 204 [2021-11-07 00:53:52,162 INFO L226 Difference]: Without dead ends: 197 [2021-11-07 00:53:52,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:52,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-07 00:53:52,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-07 00:53:52,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 3.13265306122449) internal successors, (614), 196 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 614 transitions. [2021-11-07 00:53:52,222 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 614 transitions. Word has length 20 [2021-11-07 00:53:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:52,224 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 614 transitions. [2021-11-07 00:53:52,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 614 transitions. [2021-11-07 00:53:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 00:53:52,231 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:52,231 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:52,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:52,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:52,434 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:52,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2028274910, now seen corresponding path program 1 times [2021-11-07 00:53:52,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:52,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103737114] [2021-11-07 00:53:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:52,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:52,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:52,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:52,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:53:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:52,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 00:53:52,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:53:52,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:53:52,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:52,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103737114] [2021-11-07 00:53:52,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103737114] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:52,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:52,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 00:53:52,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382849976] [2021-11-07 00:53:52,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 00:53:52,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:52,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 00:53:52,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:53:52,912 INFO L87 Difference]: Start difference. First operand 197 states and 614 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:53,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:53,055 INFO L93 Difference]: Finished difference Result 173 states and 548 transitions. [2021-11-07 00:53:53,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:53:53,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 00:53:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:53,064 INFO L225 Difference]: With dead ends: 173 [2021-11-07 00:53:53,064 INFO L226 Difference]: Without dead ends: 173 [2021-11-07 00:53:53,065 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:53:53,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-07 00:53:53,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 133. [2021-11-07 00:53:53,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 3.121212121212121) internal successors, (412), 132 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:53,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 412 transitions. [2021-11-07 00:53:53,094 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 412 transitions. Word has length 21 [2021-11-07 00:53:53,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:53,094 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 412 transitions. [2021-11-07 00:53:53,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 412 transitions. [2021-11-07 00:53:53,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 00:53:53,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:53,097 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:53,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:53,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:53,309 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:53,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:53,309 INFO L85 PathProgramCache]: Analyzing trace with hash -703979925, now seen corresponding path program 1 times [2021-11-07 00:53:53,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:53,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742064407] [2021-11-07 00:53:53,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:53,310 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:53,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:53,314 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:53,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:53:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:53,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 00:53:53,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:53,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:53:53,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:53,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:53,729 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:53,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742064407] [2021-11-07 00:53:53,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742064407] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 00:53:53,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 00:53:53,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-07 00:53:53,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330678383] [2021-11-07 00:53:53,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:53:53,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:53,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:53:53,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:53:53,732 INFO L87 Difference]: Start difference. First operand 133 states and 412 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:53,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:53,770 INFO L93 Difference]: Finished difference Result 134 states and 413 transitions. [2021-11-07 00:53:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:53:53,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 00:53:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:53,773 INFO L225 Difference]: With dead ends: 134 [2021-11-07 00:53:53,774 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 00:53:53,774 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:53:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 00:53:53,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-07 00:53:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 3.1052631578947367) internal successors, (413), 133 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 413 transitions. [2021-11-07 00:53:53,786 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 413 transitions. Word has length 21 [2021-11-07 00:53:53,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:53,786 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 413 transitions. [2021-11-07 00:53:53,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:53,787 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 413 transitions. [2021-11-07 00:53:53,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 00:53:53,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:53,789 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:53,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:54,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:54,003 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:54,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:54,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1630191134, now seen corresponding path program 1 times [2021-11-07 00:53:54,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:54,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060789412] [2021-11-07 00:53:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:54,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:54,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:54,006 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:54,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:53:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:54,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 00:53:54,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:53:54,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:53:54,615 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:54,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060789412] [2021-11-07 00:53:54,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060789412] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 00:53:54,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 00:53:54,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-11-07 00:53:54,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209606443] [2021-11-07 00:53:54,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:53:54,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:54,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:53:54,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 00:53:54,618 INFO L87 Difference]: Start difference. First operand 134 states and 413 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:54,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:54,739 INFO L93 Difference]: Finished difference Result 166 states and 519 transitions. [2021-11-07 00:53:54,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:53:54,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 00:53:54,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:54,744 INFO L225 Difference]: With dead ends: 166 [2021-11-07 00:53:54,744 INFO L226 Difference]: Without dead ends: 166 [2021-11-07 00:53:54,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:53:54,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-07 00:53:54,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-07 00:53:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 3.1454545454545455) internal successors, (519), 165 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:54,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 519 transitions. [2021-11-07 00:53:54,764 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 519 transitions. Word has length 22 [2021-11-07 00:53:54,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:54,764 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 519 transitions. [2021-11-07 00:53:54,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:54,764 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 519 transitions. [2021-11-07 00:53:54,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 00:53:54,766 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:54,774 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:54,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:54,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:54,991 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:54,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash 152104597, now seen corresponding path program 1 times [2021-11-07 00:53:54,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:54,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564969724] [2021-11-07 00:53:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:54,992 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:54,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:54,993 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:54,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:53:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:55,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 00:53:55,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:56,299 INFO L354 Elim1Store]: treesize reduction 262, result has 4.7 percent of original size [2021-11-07 00:53:56,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 216 treesize of output 90 [2021-11-07 00:53:56,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:56,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:57,556 INFO L354 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2021-11-07 00:53:57,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 285 treesize of output 123 [2021-11-07 00:55:17,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:55:17,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564969724] [2021-11-07 00:55:17,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2021-11-07 00:55:17,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [178582633] [2021-11-07 00:55:17,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:55:17,463 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:55:17,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:55:17,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:55:17,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 00:55:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:55:17,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 00:55:17,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:55:18,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:18,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:18,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:18,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:18,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:18,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:55:18,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 00:55:20,905 INFO L354 Elim1Store]: treesize reduction 815, result has 6.5 percent of original size [2021-11-07 00:55:20,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 75 treesize of output 95 [2021-11-07 00:57:37,808 WARN L207 SmtUtils]: Spent 2.21 m on a formula simplification. DAG size of input: 344 DAG size of output: 114 [2021-11-07 00:57:37,810 INFO L354 Elim1Store]: treesize reduction 1570, result has 19.4 percent of original size [2021-11-07 00:57:37,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 113 treesize of output 432 [2021-11-07 01:04:33,590 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-07 01:04:33,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/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") [2021-11-07 01:04:33,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437590356] [2021-11-07 01:04:33,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:33,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:04:33,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:04:33,594 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:04:33,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-07 01:04:33,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:04:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:34,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 01:04:34,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:34,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-07 01:04:34,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:34,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 01:04:34,736 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 01:04:34,736 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 01:04:34,742 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:04:34,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:04:34,745 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 01:04:34,745 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-07 01:04:34,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-07 01:04:34,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-07 01:04:35,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:04:35,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2873470f-0b6f-4e43-8676-59048c6c51ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:35,352 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-07 01:04:35,355 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:04:35,355 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:04:35,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:04:35 BasicIcfg [2021-11-07 01:04:35,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:04:35,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:04:35,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:04:35,378 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:04:35,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:36" (3/4) ... [2021-11-07 01:04:35,382 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:04:35,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:04:35,384 INFO L168 Benchmark]: Toolchain (without parser) took 660751.49 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 35.0 MB in the beginning and 83.4 MB in the end (delta: -48.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:04:35,386 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 38.1 MB in the beginning and 38.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:04:35,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.30 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 38.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:04:35,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.51 ms. Allocated memory is still 56.6 MB. Free memory was 38.1 MB in the beginning and 36.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:04:35,388 INFO L168 Benchmark]: Boogie Preprocessor took 65.00 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 34.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:04:35,389 INFO L168 Benchmark]: RCFGBuilder took 885.73 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.5 MB in the beginning and 39.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:04:35,390 INFO L168 Benchmark]: TraceAbstraction took 659275.68 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 38.5 MB in the beginning and 83.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:04:35,390 INFO L168 Benchmark]: Witness Printer took 4.97 ms. Allocated memory is still 121.6 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:04:35,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 38.1 MB in the beginning and 38.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.30 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 38.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.51 ms. Allocated memory is still 56.6 MB. Free memory was 38.1 MB in the beginning and 36.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.00 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 34.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 885.73 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.5 MB in the beginning and 39.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 659275.68 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 38.5 MB in the beginning and 83.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.97 ms. Allocated memory is still 121.6 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9s, 134 PlacesBefore, 34 PlacesAfterwards, 136 TransitionsBefore, 28 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 6 FixpointIterations, 73 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 127 TotalNumberOfCompositions, 1504 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1392, positive: 1362, positive conditional: 0, positive unconditional: 1362, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 880, positive: 870, positive conditional: 0, positive unconditional: 870, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 880, positive: 870, positive conditional: 0, positive unconditional: 870, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 344, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 344, negative conditional: 0, negative unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1392, positive: 492, positive conditional: 0, positive unconditional: 492, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 880, unknown conditional: 0, unknown unconditional: 880] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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: 100]: 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* A; [L41] 0 int min1, min2, M, N; [L82] 0 pthread_t t1, t2, t3; [L85] 0 M = __VERIFIER_nondet_int() [L86] 0 N = __VERIFIER_nondet_int() [L37] COND TRUE 0 !cond [L37] COND TRUE 0 !cond [L109] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L110] 0 int i = 0; [L110] COND TRUE 0 i < size [L111] 0 arr[i] = __VERIFIER_nondet_int() [L110] 0 i++ [L113] 0 return arr; [L87] 0 A = create_fresh_int_array(N) [L37] COND TRUE 0 !cond [L92] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L93] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L58] 2 int i=0; [L58] COND FALSE 2 !(i A[i]) [L46] 1 i++ [L46] COND FALSE 1 !(i A[i] [L73] EXPR 3 A[i] [L73] 3 min2 = A[i] [L70] 3 i++ [L78] 3 return 0; [L97] FCALL, JOIN 3 pthread_join(t3, 0) [L37] COND TRUE 0 !cond [L100] 0 reach_error() - UnprovableResult [Line: 93]: 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: 94]: 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: 92]: 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 7 procedures, 155 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 659.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 96 SDtfs, 73 SDslu, 82 SDs, 0 SdLazy, 58 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=1, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 40 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 83.8s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 182 ConstructedInterpolants, 3 QuantifiedInterpolants, 1987 SizeOfPredicates, 43 NumberOfNonLiveVariables, 471 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 6/11 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