./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- 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-38b53e6 [2022-11-25 17:32:18,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:32:18,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:32:18,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:32:18,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:32:18,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:32:18,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:32:18,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:32:18,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:32:18,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:32:18,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:32:18,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:32:18,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:32:18,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:32:18,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:32:18,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:32:18,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:32:18,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:32:18,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:32:18,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:32:18,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:32:18,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:32:18,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:32:18,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:32:18,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:32:18,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:32:18,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:32:18,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:32:18,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:32:18,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:32:18,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:32:18,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:32:18,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:32:18,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:32:18,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:32:18,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:32:18,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:32:18,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:32:18,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:32:18,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:32:18,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:32:18,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 17:32:18,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:32:18,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:32:18,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:32:18,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:32:18,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:32:18,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:32:18,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:32:18,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:32:18,431 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:32:18,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:32:18,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:32:18,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:32:18,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:32:18,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:32:18,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:32:18,434 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:32:18,434 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:32:18,434 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:32:18,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:32:18,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:32:18,435 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:32:18,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:32:18,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:32:18,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:32:18,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:32:18,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:18,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:32:18,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:32:18,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:32:18,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:32:18,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:32:18,438 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:32:18,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:32:18,439 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-25 17:32:18,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:32:18,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:32:18,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:32:18,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:32:18,766 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:32:18,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-25 17:32:21,802 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:32:22,035 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:32:22,036 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-25 17:32:22,043 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data/4e1168f2c/f050b8cba35d453789c38abdb8c7e514/FLAGd34edb272 [2022-11-25 17:32:22,065 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data/4e1168f2c/f050b8cba35d453789c38abdb8c7e514 [2022-11-25 17:32:22,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:32:22,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:32:22,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:22,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:32:22,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:32:22,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:22" (1/1) ... [2022-11-25 17:32:22,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba2a7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:22, skipping insertion in model container [2022-11-25 17:32:22,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:22" (1/1) ... [2022-11-25 17:32:22,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:32:22,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:32:22,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:22,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:22,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:22,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:22,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:22,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:22,364 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-25 17:32:22,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:22,406 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) [2022-11-25 17:32:22,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d053ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:22, skipping insertion in model container [2022-11-25 17:32:22,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:22,407 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-25 17:32:22,409 INFO L158 Benchmark]: Toolchain (without parser) took 338.42ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 111.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:32:22,410 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 92.2MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:32:22,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.29ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 111.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:32:22,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 92.2MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.29ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 111.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 94]: 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- 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-38b53e6 [2022-11-25 17:32:24,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:32:24,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:32:24,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:32:24,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:32:24,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:32:24,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:32:24,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:32:24,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:32:24,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:32:24,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:32:24,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:32:24,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:32:24,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:32:24,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:32:24,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:32:24,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:32:24,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:32:24,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:32:24,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:32:24,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:32:24,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:32:24,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:32:24,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:32:24,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:32:24,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:32:24,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:32:24,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:32:24,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:32:24,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:32:24,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:32:24,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:32:24,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:32:24,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:32:24,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:32:24,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:32:24,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:32:24,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:32:24,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:32:24,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:32:24,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:32:24,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-25 17:32:24,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:32:24,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:32:24,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:32:24,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:32:24,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:32:24,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:32:24,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:32:24,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:32:24,925 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:32:24,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:32:24,927 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:32:24,927 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:32:24,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:32:24,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:32:24,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:32:24,928 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:32:24,928 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:32:24,928 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:32:24,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:32:24,929 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:32:24,929 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:32:24,929 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:32:24,929 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:32:24,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:32:24,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:32:24,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:32:24,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:32:24,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:24,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:32:24,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:32:24,931 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:32:24,931 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:32:24,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:32:24,932 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:32:24,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:32:24,932 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:32:24,932 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-25 17:32:25,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:32:25,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:32:25,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:32:25,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:32:25,372 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:32:25,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-25 17:32:28,785 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:32:29,000 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:32:29,001 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-25 17:32:29,008 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data/98bfa8de1/24b237ff0aa044aa97a8b78b19d31724/FLAG29e94af74 [2022-11-25 17:32:29,031 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/data/98bfa8de1/24b237ff0aa044aa97a8b78b19d31724 [2022-11-25 17:32:29,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:32:29,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:32:29,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:29,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:32:29,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:32:29,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c151600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29, skipping insertion in model container [2022-11-25 17:32:29,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:32:29,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:32:29,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,282 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-25 17:32:29,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:29,308 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 17:32:29,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:32:29,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,364 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-25 17:32:29,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:29,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:32:29,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:32:29,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:32:29,414 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_53a07647-6a05-4659-9c74-3995ffb2c3bb/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-25 17:32:29,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:29,435 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:32:29,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29 WrapperNode [2022-11-25 17:32:29,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:29,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:29,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:32:29,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:32:29,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,497 INFO L138 Inliner]: procedures = 30, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 352 [2022-11-25 17:32:29,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:29,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:32:29,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:32:29,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:32:29,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:32:29,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:32:29,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:32:29,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:32:29,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (1/1) ... [2022-11-25 17:32:29,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:29,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:32:29,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:32:29,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:32:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:32:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:32:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:32:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:32:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 17:32:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:32:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 17:32:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 17:32:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 17:32:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 17:32:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 17:32:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 17:32:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:32:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:32:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:32:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:32:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:32:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:32:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 17:32:29,633 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:32:29,836 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:32:29,838 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:32:31,163 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:32:31,476 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:32:31,476 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-25 17:32:31,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:31 BoogieIcfgContainer [2022-11-25 17:32:31,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:32:31,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:32:31,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:32:31,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:32:31,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:32:29" (1/3) ... [2022-11-25 17:32:31,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd33f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:31, skipping insertion in model container [2022-11-25 17:32:31,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:29" (2/3) ... [2022-11-25 17:32:31,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd33f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:31, skipping insertion in model container [2022-11-25 17:32:31,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:31" (3/3) ... [2022-11-25 17:32:31,495 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-11-25 17:32:31,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:32:31,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-11-25 17:32:31,517 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:32:31,768 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 17:32:31,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 392 places, 417 transitions, 858 flow [2022-11-25 17:32:32,061 INFO L130 PetriNetUnfolder]: 35/414 cut-off events. [2022-11-25 17:32:32,061 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 17:32:32,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 414 events. 35/414 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1106 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 320. Up to 2 conditions per place. [2022-11-25 17:32:32,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 392 places, 417 transitions, 858 flow [2022-11-25 17:32:32,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 384 places, 409 transitions, 836 flow [2022-11-25 17:32:32,095 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:32:32,120 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 384 places, 409 transitions, 836 flow [2022-11-25 17:32:32,128 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 384 places, 409 transitions, 836 flow [2022-11-25 17:32:32,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 384 places, 409 transitions, 836 flow [2022-11-25 17:32:32,253 INFO L130 PetriNetUnfolder]: 35/409 cut-off events. [2022-11-25 17:32:32,254 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 17:32:32,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 409 events. 35/409 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1102 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 320. Up to 2 conditions per place. [2022-11-25 17:32:32,272 INFO L119 LiptonReduction]: Number of co-enabled transitions 25650 [2022-11-25 17:34:54,548 INFO L134 LiptonReduction]: Checked pairs total: 34943 [2022-11-25 17:34:54,548 INFO L136 LiptonReduction]: Total number of compositions: 498 [2022-11-25 17:34:54,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:34:54,570 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=PETRI_NET, 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;@11af2210, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:34:54,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2022-11-25 17:34:54,573 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 17:34:54,573 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:34:54,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:34:54,574 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:34:54,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 118 more)] === [2022-11-25 17:34:54,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash 61838, now seen corresponding path program 1 times [2022-11-25 17:34:54,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:34:54,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874783216] [2022-11-25 17:34:54,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:54,598 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 [2022-11-25 17:34:54,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:34:54,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:34:54,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:34:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:54,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:34:54,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:55,071 INFO L321 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2022-11-25 17:34:55,072 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 3 case distinctions, treesize of input 17 treesize of output 44 [2022-11-25 17:34:55,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:34:55,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:55,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:34:55,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874783216] [2022-11-25 17:34:55,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874783216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:55,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:55,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:34:55,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317577206] [2022-11-25 17:34:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:55,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:34:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:34:55,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:34:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:34:55,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 915 [2022-11-25 17:34:55,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 111 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 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) [2022-11-25 17:34:55,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:34:55,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 915 [2022-11-25 17:34:55,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:35:22,640 INFO L130 PetriNetUnfolder]: 141054/177653 cut-off events. [2022-11-25 17:35:22,641 INFO L131 PetriNetUnfolder]: For 1636/1636 co-relation queries the response was YES. [2022-11-25 17:35:22,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357149 conditions, 177653 events. 141054/177653 cut-off events. For 1636/1636 co-relation queries the response was YES. Maximal size of possible extension queue 11913. Compared 1117848 event pairs, 89218 based on Foata normal form. 0/38483 useless extension candidates. Maximal degree in co-relation 171375. Up to 88837 conditions per place. [2022-11-25 17:35:23,948 INFO L137 encePairwiseOnDemand]: 886/915 looper letters, 167 selfloop transitions, 7 changer transitions 0/177 dead transitions. [2022-11-25 17:35:23,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 177 transitions, 738 flow [2022-11-25 17:35:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:35:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:35:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1277 transitions. [2022-11-25 17:35:23,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4652094717668488 [2022-11-25 17:35:23,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1277 transitions. [2022-11-25 17:35:23,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1277 transitions. [2022-11-25 17:35:23,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:35:23,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1277 transitions. [2022-11-25 17:35:23,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 425.6666666666667) internal successors, (1277), 3 states have internal predecessors, (1277), 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) [2022-11-25 17:35:24,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 915.0) internal successors, (3660), 4 states have internal predecessors, (3660), 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) [2022-11-25 17:35:24,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 915.0) internal successors, (3660), 4 states have internal predecessors, (3660), 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) [2022-11-25 17:35:24,010 INFO L175 Difference]: Start difference. First operand has 110 places, 111 transitions, 240 flow. Second operand 3 states and 1277 transitions. [2022-11-25 17:35:24,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 177 transitions, 738 flow [2022-11-25 17:35:24,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 177 transitions, 714 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 17:35:24,073 INFO L231 Difference]: Finished difference. Result has 91 places, 98 transitions, 248 flow [2022-11-25 17:35:24,075 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=915, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=91, PETRI_TRANSITIONS=98} [2022-11-25 17:35:24,080 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, -19 predicate places. [2022-11-25 17:35:24,080 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 98 transitions, 248 flow [2022-11-25 17:35:24,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 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) [2022-11-25 17:35:24,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:35:24,082 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:35:24,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:35:24,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:35:24,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 118 more)] === [2022-11-25 17:35:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:24,295 INFO L85 PathProgramCache]: Analyzing trace with hash 61837, now seen corresponding path program 1 times [2022-11-25 17:35:24,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:35:24,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480449] [2022-11-25 17:35:24,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:24,296 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 [2022-11-25 17:35:24,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:35:24,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:35:24,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a07647-6a05-4659-9c74-3995ffb2c3bb/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:35:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:24,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:35:24,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:24,549 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-25 17:35:24,550 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 3 case distinctions, treesize of input 15 treesize of output 50 [2022-11-25 17:35:24,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:35:24,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:35:24,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:35:24,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480449] [2022-11-25 17:35:24,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:35:24,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:35:24,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:35:24,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966732380] [2022-11-25 17:35:24,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:35:24,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:35:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:35:24,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:35:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:35:24,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 915 [2022-11-25 17:35:24,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 98 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 355.6666666666667) internal successors, (1067), 3 states have internal predecessors, (1067), 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) [2022-11-25 17:35:24,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:35:24,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 915 [2022-11-25 17:35:24,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand