./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:22:03,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:22:03,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:22:03,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:22:03,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:22:03,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:22:03,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:22:03,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:22:03,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:22:03,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:22:03,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:22:03,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:22:03,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:22:03,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:22:03,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:22:03,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:22:03,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:22:03,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:22:03,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:22:03,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:22:03,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:22:03,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:22:03,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:22:03,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:22:03,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:22:03,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:22:03,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:22:03,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:22:03,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:22:03,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:22:03,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:22:03,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:22:03,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:22:03,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:22:03,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:22:03,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:22:03,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:22:03,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:22:03,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:22:03,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:22:03,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:22:03,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 02:22:03,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:22:03,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:22:03,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:22:03,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:22:03,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:22:03,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:22:03,234 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:22:03,234 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:22:03,234 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:22:03,234 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:22:03,236 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:22:03,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:22:03,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:22:03,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:22:03,237 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:22:03,237 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:22:03,237 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:22:03,237 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:22:03,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:22:03,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:22:03,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:22:03,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:22:03,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:22:03,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:22:03,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:22:03,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:22:03,241 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:22:03,241 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:22:03,241 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:22:03,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:22:03,242 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:22:03,242 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:22:03,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:22:03,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:22:03,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:22:03,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:03,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:22:03,244 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:22:03,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:22:03,244 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:22:03,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:22:03,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:22:03,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-22 02:22:03,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:22:03,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:22:03,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:22:03,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:22:03,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:22:03,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-22 02:22:06,562 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:22:06,801 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:22:06,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-22 02:22:06,809 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data/ef25752be/520be6ec0941405ca36a2fc9507cce87/FLAGa6fad6a84 [2022-11-22 02:22:06,823 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data/ef25752be/520be6ec0941405ca36a2fc9507cce87 [2022-11-22 02:22:06,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:22:06,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:22:06,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:06,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:22:06,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:22:06,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:06" (1/1) ... [2022-11-22 02:22:06,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5113bf5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:06, skipping insertion in model container [2022-11-22 02:22:06,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:06" (1/1) ... [2022-11-22 02:22:06,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:22:06,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:22:07,109 WARN L237 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_f7a81f5c-3cad-4064-981f-1be73087eaff/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-22 02:22:07,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:07,159 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-22 02:22:07,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4633c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:07, skipping insertion in model container [2022-11-22 02:22:07,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:07,160 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-22 02:22:07,163 INFO L158 Benchmark]: Toolchain (without parser) took 334.70ms. Allocated memory is still 197.1MB. Free memory was 162.0MB in the beginning and 151.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:22:07,163 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:22:07,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.28ms. Allocated memory is still 197.1MB. Free memory was 162.0MB in the beginning and 151.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:22:07,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.28ms. Allocated memory is still 197.1MB. Free memory was 162.0MB in the beginning and 151.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 183]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:22:09,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:22:09,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:22:09,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:22:09,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:22:09,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:22:09,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:22:09,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:22:09,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:22:09,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:22:09,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:22:09,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:22:09,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:22:09,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:22:09,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:22:09,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:22:09,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:22:09,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:22:09,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:22:09,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:22:09,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:22:09,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:22:09,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:22:09,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:22:09,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:22:09,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:22:09,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:22:09,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:22:09,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:22:09,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:22:09,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:22:09,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:22:09,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:22:09,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:22:09,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:22:09,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:22:09,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:22:09,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:22:09,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:22:09,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:22:09,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:22:09,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-22 02:22:09,563 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:22:09,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:22:09,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:22:09,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:22:09,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:22:09,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:22:09,565 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:22:09,566 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:22:09,566 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:22:09,566 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:22:09,566 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:22:09,567 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:22:09,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:22:09,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:22:09,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:22:09,568 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:22:09,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:22:09,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:22:09,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:22:09,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:22:09,569 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:22:09,569 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:22:09,570 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:22:09,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:22:09,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:22:09,570 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:22:09,571 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:22:09,571 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:22:09,571 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:22:09,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:22:09,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:22:09,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:22:09,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:09,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:22:09,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:22:09,573 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:22:09,573 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:22:09,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:22:09,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:22:09,574 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_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-22 02:22:09,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:22:09,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:22:09,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:22:09,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:22:09,955 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:22:09,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-22 02:22:13,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:22:13,352 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:22:13,353 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-22 02:22:13,361 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data/5ed372e7b/89fc668ed5d14220ba5d75c14c63d53a/FLAGa6582693e [2022-11-22 02:22:13,383 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/data/5ed372e7b/89fc668ed5d14220ba5d75c14c63d53a [2022-11-22 02:22:13,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:22:13,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:22:13,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:13,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:22:13,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:22:13,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edb283b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13, skipping insertion in model container [2022-11-22 02:22:13,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:22:13,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:22:13,628 WARN L237 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_f7a81f5c-3cad-4064-981f-1be73087eaff/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-22 02:22:13,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:13,663 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-22 02:22:13,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:22:13,686 WARN L237 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_f7a81f5c-3cad-4064-981f-1be73087eaff/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-22 02:22:13,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:13,697 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:22:13,726 WARN L237 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_f7a81f5c-3cad-4064-981f-1be73087eaff/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-22 02:22:13,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:22:13,752 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:22:13,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13 WrapperNode [2022-11-22 02:22:13,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:22:13,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:13,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:22:13,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:22:13,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,847 INFO L138 Inliner]: procedures = 31, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 275 [2022-11-22 02:22:13,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:22:13,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:22:13,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:22:13,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:22:13,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:22:13,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:22:13,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:22:13,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:22:13,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (1/1) ... [2022-11-22 02:22:13,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:22:14,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:22:14,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:22:14,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:22:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:22:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 02:22:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:22:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 02:22:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-22 02:22:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-22 02:22:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-22 02:22:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-22 02:22:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-22 02:22:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-22 02:22:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-22 02:22:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-22 02:22:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-22 02:22:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-22 02:22:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-22 02:22:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-22 02:22:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 02:22:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 02:22:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:22:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:22:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:22:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:22:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 02:22:14,100 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:22:14,281 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:22:14,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:22:15,156 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:22:15,559 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:22:15,559 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 02:22:15,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:15 BoogieIcfgContainer [2022-11-22 02:22:15,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:22:15,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:22:15,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:22:15,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:22:15,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:22:13" (1/3) ... [2022-11-22 02:22:15,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6ef5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:15, skipping insertion in model container [2022-11-22 02:22:15,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:13" (2/3) ... [2022-11-22 02:22:15,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6ef5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:15, skipping insertion in model container [2022-11-22 02:22:15,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:15" (3/3) ... [2022-11-22 02:22:15,577 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-22 02:22:15,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:22:15,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-22 02:22:15,605 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:22:15,817 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-22 02:22:15,875 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:22:15,911 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 292 transitions, 656 flow [2022-11-22 02:22:15,914 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 292 transitions, 656 flow [2022-11-22 02:22:15,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 292 transitions, 656 flow [2022-11-22 02:22:16,091 INFO L130 PetriNetUnfolder]: 18/260 cut-off events. [2022-11-22 02:22:16,091 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-22 02:22:16,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 260 events. 18/260 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 456 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 219. Up to 3 conditions per place. [2022-11-22 02:22:16,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 11976 [2022-11-22 02:22:44,197 INFO L134 LiptonReduction]: Checked pairs total: 60265 [2022-11-22 02:22:44,198 INFO L136 LiptonReduction]: Total number of compositions: 240 [2022-11-22 02:22:44,206 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131 places, 121 transitions, 314 flow [2022-11-22 02:22:49,924 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:22:49,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:22:49,969 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69f12767, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:22:49,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2022-11-22 02:22:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:22:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:22:50,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:50,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:22:50,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-22 02:22:50,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash 46036, now seen corresponding path program 1 times [2022-11-22 02:22:50,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:22:50,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270804063] [2022-11-22 02:22:50,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:50,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:22:50,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:22:50,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:22:50,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 02:22:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:50,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:22:50,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:22:50,820 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-22 02:22:50,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2022-11-22 02:22:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:22:50,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:22:50,845 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:22:50,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270804063] [2022-11-22 02:22:50,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270804063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:50,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:50,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:22:50,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859899520] [2022-11-22 02:22:50,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:50,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:22:50,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:22:50,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:22:50,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:22:51,146 INFO L87 Difference]: Start difference. First operand has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:22:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:55,055 INFO L93 Difference]: Finished difference Result 113234 states and 627784 transitions. [2022-11-22 02:22:55,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:22:55,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:22:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:56,611 INFO L225 Difference]: With dead ends: 113234 [2022-11-22 02:22:56,611 INFO L226 Difference]: Without dead ends: 113234 [2022-11-22 02:22:56,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:22:56,616 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 83 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:56,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 34 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 02:22:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113234 states. [2022-11-22 02:23:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113234 to 113234. [2022-11-22 02:23:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113234 states, 108024 states have (on average 5.811523365178108) internal successors, (627784), 113233 states have internal predecessors, (627784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:05,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113234 states to 113234 states and 627784 transitions. [2022-11-22 02:23:05,811 INFO L78 Accepts]: Start accepts. Automaton has 113234 states and 627784 transitions. Word has length 2 [2022-11-22 02:23:05,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:05,813 INFO L495 AbstractCegarLoop]: Abstraction has 113234 states and 627784 transitions. [2022-11-22 02:23:05,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 113234 states and 627784 transitions. [2022-11-22 02:23:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:23:05,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:05,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:23:05,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:06,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:23:06,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-22 02:23:06,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash 46037, now seen corresponding path program 1 times [2022-11-22 02:23:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:23:06,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917866105] [2022-11-22 02:23:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:06,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:23:06,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:23:06,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:23:06,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 02:23:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:06,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:23:06,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:06,205 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-22 02:23:06,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-22 02:23:06,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:06,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:06,239 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:23:06,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917866105] [2022-11-22 02:23:06,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917866105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:06,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:06,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:23:06,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253540879] [2022-11-22 02:23:06,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:06,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:06,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:23:06,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:06,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:06,242 INFO L87 Difference]: Start difference. First operand 113234 states and 627784 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:08,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:08,760 INFO L93 Difference]: Finished difference Result 113248 states and 627812 transitions. [2022-11-22 02:23:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:08,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:23:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:10,725 INFO L225 Difference]: With dead ends: 113248 [2022-11-22 02:23:10,725 INFO L226 Difference]: Without dead ends: 113248 [2022-11-22 02:23:10,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:10,727 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:10,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:23:11,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113248 states. [2022-11-22 02:23:16,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113248 to 113235. [2022-11-22 02:23:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113235 states, 108025 states have (on average 5.811506595695441) internal successors, (627788), 113234 states have internal predecessors, (627788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113235 states to 113235 states and 627788 transitions. [2022-11-22 02:23:18,185 INFO L78 Accepts]: Start accepts. Automaton has 113235 states and 627788 transitions. Word has length 2 [2022-11-22 02:23:18,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:18,185 INFO L495 AbstractCegarLoop]: Abstraction has 113235 states and 627788 transitions. [2022-11-22 02:23:18,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 113235 states and 627788 transitions. [2022-11-22 02:23:18,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:23:18,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:18,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:23:18,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:18,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:23:18,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-22 02:23:18,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:18,388 INFO L85 PathProgramCache]: Analyzing trace with hash 46216, now seen corresponding path program 1 times [2022-11-22 02:23:18,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:23:18,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712689155] [2022-11-22 02:23:18,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:18,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:23:18,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:23:18,390 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:23:18,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 02:23:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:18,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:23:18,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:18,554 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2022-11-22 02:23:18,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-22 02:23:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:18,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:18,594 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:23:18,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712689155] [2022-11-22 02:23:18,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712689155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:18,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:18,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:23:18,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533096532] [2022-11-22 02:23:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:18,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:18,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:23:18,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:18,597 INFO L87 Difference]: Start difference. First operand 113235 states and 627788 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:21,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:21,126 INFO L93 Difference]: Finished difference Result 86009 states and 467901 transitions. [2022-11-22 02:23:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:21,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:23:21,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:22,752 INFO L225 Difference]: With dead ends: 86009 [2022-11-22 02:23:22,752 INFO L226 Difference]: Without dead ends: 86009 [2022-11-22 02:23:22,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:22,763 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 81 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:22,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 34 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 02:23:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86009 states. [2022-11-22 02:23:25,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86009 to 86009. [2022-11-22 02:23:25,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86009 states, 82400 states have (on average 5.678410194174758) internal successors, (467901), 86008 states have internal predecessors, (467901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86009 states to 86009 states and 467901 transitions. [2022-11-22 02:23:27,312 INFO L78 Accepts]: Start accepts. Automaton has 86009 states and 467901 transitions. Word has length 2 [2022-11-22 02:23:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:27,312 INFO L495 AbstractCegarLoop]: Abstraction has 86009 states and 467901 transitions. [2022-11-22 02:23:27,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 86009 states and 467901 transitions. [2022-11-22 02:23:27,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:23:27,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:27,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:23:27,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:27,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:23:27,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-22 02:23:27,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:27,514 INFO L85 PathProgramCache]: Analyzing trace with hash 46217, now seen corresponding path program 1 times [2022-11-22 02:23:27,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:23:27,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506171343] [2022-11-22 02:23:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:27,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:23:27,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:23:27,516 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:23:27,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a81f5c-3cad-4064-981f-1be73087eaff/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-22 02:23:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:27,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 02:23:27,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:27,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:27,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:27,688 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:23:27,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 20 [2022-11-22 02:23:27,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:23:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:23:27,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:27,740 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:23:27,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506171343] [2022-11-22 02:23:27,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506171343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:27,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:27,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:23:27,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115367277] [2022-11-22 02:23:27,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:27,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:27,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:23:27,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:27,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:27,742 INFO L87 Difference]: Start difference. First operand 86009 states and 467901 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:23:29,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:29,560 INFO L93 Difference]: Finished difference Result 58119 states and 305408 transitions. [2022-11-22 02:23:29,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:29,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 02:23:29,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:30,006 INFO L225 Difference]: With dead ends: 58119 [2022-11-22 02:23:30,006 INFO L226 Difference]: Without dead ends: 58119 [2022-11-22 02:23:30,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:30,007 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 90 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:30,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 17 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:23:30,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58119 states.