./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8 --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 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- 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-2329fc7 [2022-12-13 16:46:00,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:46:00,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:46:00,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:46:00,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:46:00,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:46:00,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:46:00,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:46:00,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:46:00,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:46:00,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:46:00,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:46:00,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:46:00,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:46:00,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:46:00,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:46:00,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:46:00,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:46:00,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:46:00,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:46:00,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:46:00,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:46:00,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:46:00,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:46:00,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:46:00,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:46:00,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:46:00,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:46:00,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:46:00,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:46:00,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:46:00,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:46:00,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:46:00,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:46:00,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:46:00,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:46:00,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:46:00,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:46:00,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:46:00,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:46:00,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:46:00,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 16:46:00,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:46:00,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:46:00,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:46:00,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:46:00,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:46:00,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:46:00,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:46:00,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:46:00,906 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:46:00,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:46:00,906 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:46:00,906 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:46:00,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:46:00,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:46:00,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:46:00,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:46:00,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:46:00,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:46:00,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:46:00,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:46:00,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:46:00,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:46:00,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:46:00,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:46:00,908 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:46:00,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:46:00,909 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:46:00,909 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_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2022-12-13 16:46:01,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:46:01,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:46:01,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:46:01,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:46:01,123 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:46:01,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-12-13 16:46:03,740 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:46:03,966 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:46:03,966 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-12-13 16:46:03,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data/05ff2548c/df8ccded97774c469968dd6c5f759764/FLAG1ab9cab42 [2022-12-13 16:46:03,997 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data/05ff2548c/df8ccded97774c469968dd6c5f759764 [2022-12-13 16:46:04,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:46:04,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:46:04,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:46:04,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:46:04,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:46:04,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:46:03" (1/1) ... [2022-12-13 16:46:04,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b62cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04, skipping insertion in model container [2022-12-13 16:46:04,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:46:03" (1/1) ... [2022-12-13 16:46:04,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:46:04,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:46:04,206 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_47d655b9-a02a-4bf9-9332-786279a315b8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-12-13 16:46:04,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:46:04,393 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:46:04,403 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_47d655b9-a02a-4bf9-9332-786279a315b8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-12-13 16:46:04,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:04,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:04,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:46:04,490 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:46:04,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04 WrapperNode [2022-12-13 16:46:04,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:46:04,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:46:04,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:46:04,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:46:04,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,535 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-13 16:46:04,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:46:04,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:46:04,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:46:04,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:46:04,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:46:04,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:46:04,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:46:04,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:46:04,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (1/1) ... [2022-12-13 16:46:04,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:46:04,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:46:04,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:46:04,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:46:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:46:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 16:46:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:46:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:46:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:46:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 16:46:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 16:46:04,633 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 16:46:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 16:46:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 16:46:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 16:46:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 16:46:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 16:46:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:46:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 16:46:04,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:46:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:46:04,636 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:46:04,746 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:46:04,748 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:46:05,033 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:46:05,140 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:46:05,140 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:46:05,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:46:05 BoogieIcfgContainer [2022-12-13 16:46:05,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:46:05,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:46:05,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:46:05,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:46:05,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:46:03" (1/3) ... [2022-12-13 16:46:05,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e97c147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:46:05, skipping insertion in model container [2022-12-13 16:46:05,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:04" (2/3) ... [2022-12-13 16:46:05,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e97c147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:46:05, skipping insertion in model container [2022-12-13 16:46:05,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:46:05" (3/3) ... [2022-12-13 16:46:05,151 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2022-12-13 16:46:05,165 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:46:05,166 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 16:46:05,166 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:46:05,216 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:46:05,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 16:46:05,295 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 16:46:05,295 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:05,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 16:46:05,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 16:46:05,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 145 transitions, 302 flow [2022-12-13 16:46:05,309 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:46:05,319 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 16:46:05,322 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 16:46:05,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 302 flow [2022-12-13 16:46:05,353 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 16:46:05,353 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:05,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 16:46:05,356 INFO L119 LiptonReduction]: Number of co-enabled transitions 3570 [2022-12-13 16:46:08,991 INFO L134 LiptonReduction]: Checked pairs total: 10181 [2022-12-13 16:46:08,992 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-12-13 16:46:09,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:46:09,013 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;@9d410e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:46:09,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 16:46:09,015 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 16:46:09,015 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:09,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:09,015 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:46:09,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:09,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:09,020 INFO L85 PathProgramCache]: Analyzing trace with hash 614, now seen corresponding path program 1 times [2022-12-13 16:46:09,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:09,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708831695] [2022-12-13 16:46:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:09,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:09,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:09,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:09,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708831695] [2022-12-13 16:46:09,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708831695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:09,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:09,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:46:09,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149782258] [2022-12-13 16:46:09,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:09,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:46:09,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:46:09,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:46:09,157 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 289 [2022-12-13 16:46:09,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 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) [2022-12-13 16:46:09,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:09,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 289 [2022-12-13 16:46:09,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:10,357 INFO L130 PetriNetUnfolder]: 7925/10836 cut-off events. [2022-12-13 16:46:10,357 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-12-13 16:46:10,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21746 conditions, 10836 events. 7925/10836 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 56761 event pairs, 7925 based on Foata normal form. 320/9383 useless extension candidates. Maximal degree in co-relation 21734. Up to 10695 conditions per place. [2022-12-13 16:46:10,399 INFO L137 encePairwiseOnDemand]: 280/289 looper letters, 28 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2022-12-13 16:46:10,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 132 flow [2022-12-13 16:46:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:46:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:46:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 307 transitions. [2022-12-13 16:46:10,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5311418685121108 [2022-12-13 16:46:10,412 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 307 transitions. [2022-12-13 16:46:10,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 307 transitions. [2022-12-13 16:46:10,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:10,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 307 transitions. [2022-12-13 16:46:10,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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) [2022-12-13 16:46:10,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 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) [2022-12-13 16:46:10,424 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 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) [2022-12-13 16:46:10,426 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 2 states and 307 transitions. [2022-12-13 16:46:10,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 132 flow [2022-12-13 16:46:10,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 16:46:10,436 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 72 flow [2022-12-13 16:46:10,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2022-12-13 16:46:10,440 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -11 predicate places. [2022-12-13 16:46:10,441 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 72 flow [2022-12-13 16:46:10,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 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) [2022-12-13 16:46:10,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:10,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:46:10,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:46:10,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:10,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:10,442 INFO L85 PathProgramCache]: Analyzing trace with hash 581576810, now seen corresponding path program 1 times [2022-12-13 16:46:10,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:10,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251283700] [2022-12-13 16:46:10,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:10,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:10,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:10,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251283700] [2022-12-13 16:46:10,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251283700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:10,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:10,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:46:10,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391143456] [2022-12-13 16:46:10,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:10,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:46:10,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:46:10,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:46:10,703 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 289 [2022-12-13 16:46:10,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2022-12-13 16:46:10,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:10,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 289 [2022-12-13 16:46:10,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:11,593 INFO L130 PetriNetUnfolder]: 6231/8772 cut-off events. [2022-12-13 16:46:11,593 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:11,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17393 conditions, 8772 events. 6231/8772 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 48158 event pairs, 1661 based on Foata normal form. 0/7924 useless extension candidates. Maximal degree in co-relation 17390. Up to 6739 conditions per place. [2022-12-13 16:46:11,621 INFO L137 encePairwiseOnDemand]: 286/289 looper letters, 41 selfloop transitions, 2 changer transitions 4/51 dead transitions. [2022-12-13 16:46:11,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 208 flow [2022-12-13 16:46:11,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:46:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:46:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2022-12-13 16:46:11,624 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5190311418685121 [2022-12-13 16:46:11,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2022-12-13 16:46:11,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2022-12-13 16:46:11,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:11,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2022-12-13 16:46:11,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2022-12-13 16:46:11,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 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) [2022-12-13 16:46:11,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 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) [2022-12-13 16:46:11,631 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 72 flow. Second operand 3 states and 450 transitions. [2022-12-13 16:46:11,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 208 flow [2022-12-13 16:46:11,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:46:11,632 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 70 flow [2022-12-13 16:46:11,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2022-12-13 16:46:11,633 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2022-12-13 16:46:11,633 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 70 flow [2022-12-13 16:46:11,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2022-12-13 16:46:11,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:11,634 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:11,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:46:11,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:11,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:11,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1830983596, now seen corresponding path program 1 times [2022-12-13 16:46:11,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:11,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800239575] [2022-12-13 16:46:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:11,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:12,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:12,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:12,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800239575] [2022-12-13 16:46:12,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800239575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:12,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:12,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:12,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689574864] [2022-12-13 16:46:12,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:12,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:46:12,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:12,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:46:12,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:46:12,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 289 [2022-12-13 16:46:12,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 70 flow. Second operand has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2022-12-13 16:46:12,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:12,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 289 [2022-12-13 16:46:12,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:13,066 INFO L130 PetriNetUnfolder]: 3927/5492 cut-off events. [2022-12-13 16:46:13,067 INFO L131 PetriNetUnfolder]: For 356/356 co-relation queries the response was YES. [2022-12-13 16:46:13,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11403 conditions, 5492 events. 3927/5492 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 27125 event pairs, 1408 based on Foata normal form. 0/5364 useless extension candidates. Maximal degree in co-relation 11399. Up to 5136 conditions per place. [2022-12-13 16:46:13,087 INFO L137 encePairwiseOnDemand]: 284/289 looper letters, 38 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2022-12-13 16:46:13,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 192 flow [2022-12-13 16:46:13,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:46:13,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:46:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 739 transitions. [2022-12-13 16:46:13,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4261822376009227 [2022-12-13 16:46:13,089 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 739 transitions. [2022-12-13 16:46:13,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 739 transitions. [2022-12-13 16:46:13,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:13,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 739 transitions. [2022-12-13 16:46:13,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 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) [2022-12-13 16:46:13,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 289.0) internal successors, (2023), 7 states have internal predecessors, (2023), 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) [2022-12-13 16:46:13,095 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 289.0) internal successors, (2023), 7 states have internal predecessors, (2023), 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) [2022-12-13 16:46:13,095 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 70 flow. Second operand 6 states and 739 transitions. [2022-12-13 16:46:13,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 192 flow [2022-12-13 16:46:13,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:46:13,096 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 72 flow [2022-12-13 16:46:13,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=72, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2022-12-13 16:46:13,097 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2022-12-13 16:46:13,097 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 72 flow [2022-12-13 16:46:13,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2022-12-13 16:46:13,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:13,098 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:13,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:46:13,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:13,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:13,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1830983577, now seen corresponding path program 1 times [2022-12-13 16:46:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:13,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42553898] [2022-12-13 16:46:13,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:13,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:13,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:13,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:13,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42553898] [2022-12-13 16:46:13,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42553898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:13,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:13,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:46:13,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023553726] [2022-12-13 16:46:13,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:13,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:46:13,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:13,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:46:13,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:46:13,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 289 [2022-12-13 16:46:13,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-12-13 16:46:13,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:13,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 289 [2022-12-13 16:46:13,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:14,920 INFO L130 PetriNetUnfolder]: 16497/22490 cut-off events. [2022-12-13 16:46:14,920 INFO L131 PetriNetUnfolder]: For 165/165 co-relation queries the response was YES. [2022-12-13 16:46:14,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45503 conditions, 22490 events. 16497/22490 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 119220 event pairs, 5291 based on Foata normal form. 948/23438 useless extension candidates. Maximal degree in co-relation 45499. Up to 13271 conditions per place. [2022-12-13 16:46:14,984 INFO L137 encePairwiseOnDemand]: 280/289 looper letters, 46 selfloop transitions, 7 changer transitions 33/86 dead transitions. [2022-12-13 16:46:14,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 86 transitions, 372 flow [2022-12-13 16:46:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:46:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 16:46:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 703 transitions. [2022-12-13 16:46:14,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4865051903114187 [2022-12-13 16:46:14,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 703 transitions. [2022-12-13 16:46:14,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 703 transitions. [2022-12-13 16:46:14,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:14,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 703 transitions. [2022-12-13 16:46:14,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 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) [2022-12-13 16:46:14,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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) [2022-12-13 16:46:14,990 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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) [2022-12-13 16:46:14,990 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 72 flow. Second operand 5 states and 703 transitions. [2022-12-13 16:46:14,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 86 transitions, 372 flow [2022-12-13 16:46:14,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 86 transitions, 360 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 16:46:14,992 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 135 flow [2022-12-13 16:46:14,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2022-12-13 16:46:14,993 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2022-12-13 16:46:14,993 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 135 flow [2022-12-13 16:46:14,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-12-13 16:46:14,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:14,994 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:14,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:46:14,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:14,994 INFO L85 PathProgramCache]: Analyzing trace with hash 925943631, now seen corresponding path program 1 times [2022-12-13 16:46:14,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:14,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451010747] [2022-12-13 16:46:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:14,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:15,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:15,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451010747] [2022-12-13 16:46:15,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451010747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:15,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:15,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:46:15,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902738518] [2022-12-13 16:46:15,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:15,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:46:15,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:15,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:46:15,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:46:15,161 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 289 [2022-12-13 16:46:15,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 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) [2022-12-13 16:46:15,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:15,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 289 [2022-12-13 16:46:15,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:17,010 INFO L130 PetriNetUnfolder]: 14489/19886 cut-off events. [2022-12-13 16:46:17,010 INFO L131 PetriNetUnfolder]: For 12040/12040 co-relation queries the response was YES. [2022-12-13 16:46:17,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52583 conditions, 19886 events. 14489/19886 cut-off events. For 12040/12040 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 103288 event pairs, 3175 based on Foata normal form. 928/20814 useless extension candidates. Maximal degree in co-relation 52576. Up to 8721 conditions per place. [2022-12-13 16:46:17,092 INFO L137 encePairwiseOnDemand]: 281/289 looper letters, 54 selfloop transitions, 7 changer transitions 44/105 dead transitions. [2022-12-13 16:46:17,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 105 transitions, 577 flow [2022-12-13 16:46:17,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:46:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 16:46:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 960 transitions. [2022-12-13 16:46:17,095 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4745427582797825 [2022-12-13 16:46:17,095 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 960 transitions. [2022-12-13 16:46:17,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 960 transitions. [2022-12-13 16:46:17,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:17,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 960 transitions. [2022-12-13 16:46:17,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.14285714285714) internal successors, (960), 7 states have internal predecessors, (960), 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) [2022-12-13 16:46:17,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:17,101 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:17,101 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 135 flow. Second operand 7 states and 960 transitions. [2022-12-13 16:46:17,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 105 transitions, 577 flow [2022-12-13 16:46:17,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 105 transitions, 535 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 16:46:17,166 INFO L231 Difference]: Finished difference. Result has 55 places, 37 transitions, 179 flow [2022-12-13 16:46:17,166 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=179, PETRI_PLACES=55, PETRI_TRANSITIONS=37} [2022-12-13 16:46:17,166 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2022-12-13 16:46:17,167 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 37 transitions, 179 flow [2022-12-13 16:46:17,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 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) [2022-12-13 16:46:17,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:17,167 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:17,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:46:17,167 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:17,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2057659016, now seen corresponding path program 1 times [2022-12-13 16:46:17,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:17,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330203779] [2022-12-13 16:46:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:17,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:17,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:17,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330203779] [2022-12-13 16:46:17,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330203779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:17,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:17,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:46:17,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619299856] [2022-12-13 16:46:17,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:17,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:46:17,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:17,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:46:17,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:46:17,346 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 289 [2022-12-13 16:46:17,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 37 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 131.25) internal successors, (525), 4 states have internal predecessors, (525), 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) [2022-12-13 16:46:17,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:17,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 289 [2022-12-13 16:46:17,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:18,253 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L838-->L845: Formula: (let ((.cse3 (not (= (mod v_~x$w_buff0_used~0_101 256) 0))) (.cse4 (not (= (mod v_~x$r_buff1_thd4~0_20 256) 0))) (.cse5 (not (= (mod v_~x$r_buff0_thd4~0_24 256) 0)))) (let ((.cse0 (and .cse5 (not (= (mod v_~x$w_buff0_used~0_102 256) 0)))) (.cse1 (and (not (= (mod v_~x$w_buff1_used~0_95 256) 0)) .cse4)) (.cse2 (and .cse5 .cse3))) (and (= (ite .cse0 0 v_~x$w_buff0_used~0_102) v_~x$w_buff0_used~0_101) (= (ite .cse0 v_~x$w_buff0~0_35 (ite .cse1 v_~x$w_buff1~0_28 v_~x~0_39)) v_~x~0_38) (= (ite .cse2 0 v_~x$r_buff0_thd4~0_24) v_~x$r_buff0_thd4~0_23) (= v_~x$r_buff1_thd4~0_19 (ite (or (and .cse3 (not (= (mod v_~x$r_buff0_thd4~0_23 256) 0))) (and .cse4 (not (= (mod v_~x$w_buff1_used~0_94 256) 0)))) 0 v_~x$r_buff1_thd4~0_20)) (= v_~x$w_buff1_used~0_94 (ite (or .cse1 .cse2) 0 v_~x$w_buff1_used~0_95))))) InVars {~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_95, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_24, ~x~0=v_~x~0_39, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_20, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_102} OutVars{~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_94, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_23, ~x~0=v_~x~0_38, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_19, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_101} AuxVars[] AssignedVars[~x$w_buff1_used~0, ~x$r_buff0_thd4~0, ~x~0, ~x$r_buff1_thd4~0, ~x$w_buff0_used~0][59], [P3Thread1of1ForFork3InUse, Black: 194#(and (= ~__unbuffered_p3_EAX~0 0) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 149#L845true, 49#L873true, Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), 128#L770true, 21#P2EXITtrue, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, Black: 180#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), P2Thread1of1ForFork1InUse, 163#true, 204#true, 188#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:18,253 INFO L383 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2022-12-13 16:46:18,253 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 16:46:18,253 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 16:46:18,253 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 16:46:18,343 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L838-->L845: Formula: (let ((.cse3 (not (= (mod v_~x$w_buff0_used~0_101 256) 0))) (.cse4 (not (= (mod v_~x$r_buff1_thd4~0_20 256) 0))) (.cse5 (not (= (mod v_~x$r_buff0_thd4~0_24 256) 0)))) (let ((.cse0 (and .cse5 (not (= (mod v_~x$w_buff0_used~0_102 256) 0)))) (.cse1 (and (not (= (mod v_~x$w_buff1_used~0_95 256) 0)) .cse4)) (.cse2 (and .cse5 .cse3))) (and (= (ite .cse0 0 v_~x$w_buff0_used~0_102) v_~x$w_buff0_used~0_101) (= (ite .cse0 v_~x$w_buff0~0_35 (ite .cse1 v_~x$w_buff1~0_28 v_~x~0_39)) v_~x~0_38) (= (ite .cse2 0 v_~x$r_buff0_thd4~0_24) v_~x$r_buff0_thd4~0_23) (= v_~x$r_buff1_thd4~0_19 (ite (or (and .cse3 (not (= (mod v_~x$r_buff0_thd4~0_23 256) 0))) (and .cse4 (not (= (mod v_~x$w_buff1_used~0_94 256) 0)))) 0 v_~x$r_buff1_thd4~0_20)) (= v_~x$w_buff1_used~0_94 (ite (or .cse1 .cse2) 0 v_~x$w_buff1_used~0_95))))) InVars {~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_95, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_24, ~x~0=v_~x~0_39, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_20, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_102} OutVars{~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_94, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_23, ~x~0=v_~x~0_38, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_19, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_101} AuxVars[] AssignedVars[~x$w_buff1_used~0, ~x$r_buff0_thd4~0, ~x~0, ~x$r_buff1_thd4~0, ~x$w_buff0_used~0][59], [P3Thread1of1ForFork3InUse, Black: 194#(and (= ~__unbuffered_p3_EAX~0 0) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 41#L880true, Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 149#L845true, Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), 128#L770true, 21#P2EXITtrue, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, Black: 180#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), P2Thread1of1ForFork1InUse, 163#true, 204#true, 188#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:18,343 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,344 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,344 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,344 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,344 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([471] L880-->L884: Formula: (= v_~main$tmp_guard1~0_6 (ite (= (ite (not (and (= 2 v_~z~0_8) (= v_~__unbuffered_p1_EAX~0_6 0) (= v_~__unbuffered_p0_EAX~0_12 0) (= v_~__unbuffered_p3_EBX~0_4 0) (= 2 v_~__unbuffered_p3_EAX~0_6))) 1 0) 0) 0 1)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_6, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_6, ~z~0=v_~z~0_8, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_4} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_6, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_6, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_6, ~z~0=v_~z~0_8, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_4} AuxVars[] AssignedVars[~main$tmp_guard1~0][63], [P3Thread1of1ForFork3InUse, Black: 194#(and (= ~__unbuffered_p3_EAX~0 0) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), 128#L770true, 31#L884true, 21#P2EXITtrue, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, Black: 180#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 82#L838true, P2Thread1of1ForFork1InUse, 163#true, 204#true, 188#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:18,344 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,344 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,344 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,344 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,345 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L838-->L845: Formula: (let ((.cse3 (not (= (mod v_~x$w_buff0_used~0_101 256) 0))) (.cse4 (not (= (mod v_~x$r_buff1_thd4~0_20 256) 0))) (.cse5 (not (= (mod v_~x$r_buff0_thd4~0_24 256) 0)))) (let ((.cse0 (and .cse5 (not (= (mod v_~x$w_buff0_used~0_102 256) 0)))) (.cse1 (and (not (= (mod v_~x$w_buff1_used~0_95 256) 0)) .cse4)) (.cse2 (and .cse5 .cse3))) (and (= (ite .cse0 0 v_~x$w_buff0_used~0_102) v_~x$w_buff0_used~0_101) (= (ite .cse0 v_~x$w_buff0~0_35 (ite .cse1 v_~x$w_buff1~0_28 v_~x~0_39)) v_~x~0_38) (= (ite .cse2 0 v_~x$r_buff0_thd4~0_24) v_~x$r_buff0_thd4~0_23) (= v_~x$r_buff1_thd4~0_19 (ite (or (and .cse3 (not (= (mod v_~x$r_buff0_thd4~0_23 256) 0))) (and .cse4 (not (= (mod v_~x$w_buff1_used~0_94 256) 0)))) 0 v_~x$r_buff1_thd4~0_20)) (= v_~x$w_buff1_used~0_94 (ite (or .cse1 .cse2) 0 v_~x$w_buff1_used~0_95))))) InVars {~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_95, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_24, ~x~0=v_~x~0_39, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_20, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_102} OutVars{~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_94, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_23, ~x~0=v_~x~0_38, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_19, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_101} AuxVars[] AssignedVars[~x$w_buff1_used~0, ~x$r_buff0_thd4~0, ~x~0, ~x$r_buff1_thd4~0, ~x$w_buff0_used~0][59], [P3Thread1of1ForFork3InUse, Black: 194#(and (= ~__unbuffered_p3_EAX~0 0) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 134#P0EXITtrue, 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 149#L845true, 49#L873true, Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), 21#P2EXITtrue, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, Black: 180#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), P2Thread1of1ForFork1InUse, 163#true, 204#true, 188#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:18,345 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,345 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,345 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,346 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:18,421 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L838-->L845: Formula: (let ((.cse3 (not (= (mod v_~x$w_buff0_used~0_101 256) 0))) (.cse4 (not (= (mod v_~x$r_buff1_thd4~0_20 256) 0))) (.cse5 (not (= (mod v_~x$r_buff0_thd4~0_24 256) 0)))) (let ((.cse0 (and .cse5 (not (= (mod v_~x$w_buff0_used~0_102 256) 0)))) (.cse1 (and (not (= (mod v_~x$w_buff1_used~0_95 256) 0)) .cse4)) (.cse2 (and .cse5 .cse3))) (and (= (ite .cse0 0 v_~x$w_buff0_used~0_102) v_~x$w_buff0_used~0_101) (= (ite .cse0 v_~x$w_buff0~0_35 (ite .cse1 v_~x$w_buff1~0_28 v_~x~0_39)) v_~x~0_38) (= (ite .cse2 0 v_~x$r_buff0_thd4~0_24) v_~x$r_buff0_thd4~0_23) (= v_~x$r_buff1_thd4~0_19 (ite (or (and .cse3 (not (= (mod v_~x$r_buff0_thd4~0_23 256) 0))) (and .cse4 (not (= (mod v_~x$w_buff1_used~0_94 256) 0)))) 0 v_~x$r_buff1_thd4~0_20)) (= v_~x$w_buff1_used~0_94 (ite (or .cse1 .cse2) 0 v_~x$w_buff1_used~0_95))))) InVars {~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_95, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_24, ~x~0=v_~x~0_39, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_20, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_102} OutVars{~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_94, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_23, ~x~0=v_~x~0_38, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_19, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_101} AuxVars[] AssignedVars[~x$w_buff1_used~0, ~x$r_buff0_thd4~0, ~x~0, ~x$r_buff1_thd4~0, ~x$w_buff0_used~0][59], [P3Thread1of1ForFork3InUse, Black: 194#(and (= ~__unbuffered_p3_EAX~0 0) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 41#L880true, Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 134#P0EXITtrue, 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 149#L845true, Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), 21#P2EXITtrue, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, Black: 180#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), P2Thread1of1ForFork1InUse, 163#true, 204#true, 188#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:18,421 INFO L383 tUnfolder$Statistics]: this new event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,421 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,421 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,421 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,421 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([471] L880-->L884: Formula: (= v_~main$tmp_guard1~0_6 (ite (= (ite (not (and (= 2 v_~z~0_8) (= v_~__unbuffered_p1_EAX~0_6 0) (= v_~__unbuffered_p0_EAX~0_12 0) (= v_~__unbuffered_p3_EBX~0_4 0) (= 2 v_~__unbuffered_p3_EAX~0_6))) 1 0) 0) 0 1)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_6, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_6, ~z~0=v_~z~0_8, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_4} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_12, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_6, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_6, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_6, ~z~0=v_~z~0_8, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_4} AuxVars[] AssignedVars[~main$tmp_guard1~0][63], [P3Thread1of1ForFork3InUse, Black: 194#(and (= ~__unbuffered_p3_EAX~0 0) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 134#P0EXITtrue, 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), 31#L884true, 21#P2EXITtrue, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, Black: 180#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 82#L838true, P2Thread1of1ForFork1InUse, 163#true, 204#true, 188#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:18,421 INFO L383 tUnfolder$Statistics]: this new event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,421 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,422 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,422 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 16:46:18,519 INFO L130 PetriNetUnfolder]: 7424/10985 cut-off events. [2022-12-13 16:46:18,519 INFO L131 PetriNetUnfolder]: For 8399/8778 co-relation queries the response was YES. [2022-12-13 16:46:18,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28568 conditions, 10985 events. 7424/10985 cut-off events. For 8399/8778 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 66604 event pairs, 1173 based on Foata normal form. 754/11396 useless extension candidates. Maximal degree in co-relation 28556. Up to 5329 conditions per place. [2022-12-13 16:46:18,554 INFO L137 encePairwiseOnDemand]: 282/289 looper letters, 58 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2022-12-13 16:46:18,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 432 flow [2022-12-13 16:46:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:46:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 16:46:18,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 569 transitions. [2022-12-13 16:46:18,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4922145328719723 [2022-12-13 16:46:18,556 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 569 transitions. [2022-12-13 16:46:18,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 569 transitions. [2022-12-13 16:46:18,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:18,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 569 transitions. [2022-12-13 16:46:18,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.25) internal successors, (569), 4 states have internal predecessors, (569), 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) [2022-12-13 16:46:18,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 289.0) internal successors, (1445), 5 states have internal predecessors, (1445), 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) [2022-12-13 16:46:18,558 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 289.0) internal successors, (1445), 5 states have internal predecessors, (1445), 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) [2022-12-13 16:46:18,558 INFO L175 Difference]: Start difference. First operand has 55 places, 37 transitions, 179 flow. Second operand 4 states and 569 transitions. [2022-12-13 16:46:18,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 432 flow [2022-12-13 16:46:18,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 74 transitions, 421 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:18,607 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 214 flow [2022-12-13 16:46:18,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2022-12-13 16:46:18,608 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2022-12-13 16:46:18,608 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 214 flow [2022-12-13 16:46:18,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.25) internal successors, (525), 4 states have internal predecessors, (525), 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) [2022-12-13 16:46:18,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:18,608 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:18,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:46:18,609 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:18,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:18,609 INFO L85 PathProgramCache]: Analyzing trace with hash -12667596, now seen corresponding path program 1 times [2022-12-13 16:46:18,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:18,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254539476] [2022-12-13 16:46:18,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:18,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:18,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:18,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254539476] [2022-12-13 16:46:18,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254539476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:18,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:18,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:18,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106653877] [2022-12-13 16:46:18,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:18,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:46:18,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:18,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:46:18,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:46:18,771 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 289 [2022-12-13 16:46:18,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 131.2) internal successors, (656), 5 states have internal predecessors, (656), 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) [2022-12-13 16:46:18,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:18,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 289 [2022-12-13 16:46:18,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:19,525 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L838-->L845: Formula: (let ((.cse3 (not (= (mod v_~x$w_buff0_used~0_101 256) 0))) (.cse4 (not (= (mod v_~x$r_buff1_thd4~0_20 256) 0))) (.cse5 (not (= (mod v_~x$r_buff0_thd4~0_24 256) 0)))) (let ((.cse0 (and .cse5 (not (= (mod v_~x$w_buff0_used~0_102 256) 0)))) (.cse1 (and (not (= (mod v_~x$w_buff1_used~0_95 256) 0)) .cse4)) (.cse2 (and .cse5 .cse3))) (and (= (ite .cse0 0 v_~x$w_buff0_used~0_102) v_~x$w_buff0_used~0_101) (= (ite .cse0 v_~x$w_buff0~0_35 (ite .cse1 v_~x$w_buff1~0_28 v_~x~0_39)) v_~x~0_38) (= (ite .cse2 0 v_~x$r_buff0_thd4~0_24) v_~x$r_buff0_thd4~0_23) (= v_~x$r_buff1_thd4~0_19 (ite (or (and .cse3 (not (= (mod v_~x$r_buff0_thd4~0_23 256) 0))) (and .cse4 (not (= (mod v_~x$w_buff1_used~0_94 256) 0)))) 0 v_~x$r_buff1_thd4~0_20)) (= v_~x$w_buff1_used~0_94 (ite (or .cse1 .cse2) 0 v_~x$w_buff1_used~0_95))))) InVars {~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_95, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_24, ~x~0=v_~x~0_39, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_20, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_102} OutVars{~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_94, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_23, ~x~0=v_~x~0_38, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_19, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_101} AuxVars[] AssignedVars[~x$w_buff1_used~0, ~x$r_buff0_thd4~0, ~x~0, ~x$r_buff1_thd4~0, ~x$w_buff0_used~0][56], [P3Thread1of1ForFork3InUse, Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 149#L845true, Black: 207#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), Black: 209#(and (= ~__unbuffered_cnt~0 0) (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256))), 49#L873true, 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), 221#(and (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 1)), Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 21#P2EXITtrue, 128#L770true, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, P2Thread1of1ForFork1InUse, 163#true, 188#true, 204#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:19,525 INFO L383 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2022-12-13 16:46:19,525 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 16:46:19,525 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 16:46:19,525 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 16:46:19,579 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L838-->L845: Formula: (let ((.cse3 (not (= (mod v_~x$w_buff0_used~0_101 256) 0))) (.cse4 (not (= (mod v_~x$r_buff1_thd4~0_20 256) 0))) (.cse5 (not (= (mod v_~x$r_buff0_thd4~0_24 256) 0)))) (let ((.cse0 (and .cse5 (not (= (mod v_~x$w_buff0_used~0_102 256) 0)))) (.cse1 (and (not (= (mod v_~x$w_buff1_used~0_95 256) 0)) .cse4)) (.cse2 (and .cse5 .cse3))) (and (= (ite .cse0 0 v_~x$w_buff0_used~0_102) v_~x$w_buff0_used~0_101) (= (ite .cse0 v_~x$w_buff0~0_35 (ite .cse1 v_~x$w_buff1~0_28 v_~x~0_39)) v_~x~0_38) (= (ite .cse2 0 v_~x$r_buff0_thd4~0_24) v_~x$r_buff0_thd4~0_23) (= v_~x$r_buff1_thd4~0_19 (ite (or (and .cse3 (not (= (mod v_~x$r_buff0_thd4~0_23 256) 0))) (and .cse4 (not (= (mod v_~x$w_buff1_used~0_94 256) 0)))) 0 v_~x$r_buff1_thd4~0_20)) (= v_~x$w_buff1_used~0_94 (ite (or .cse1 .cse2) 0 v_~x$w_buff1_used~0_95))))) InVars {~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_95, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_24, ~x~0=v_~x~0_39, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_20, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_102} OutVars{~x$w_buff0~0=v_~x$w_buff0~0_35, ~x$w_buff1~0=v_~x$w_buff1~0_28, ~x$w_buff1_used~0=v_~x$w_buff1_used~0_94, ~x$r_buff0_thd4~0=v_~x$r_buff0_thd4~0_23, ~x~0=v_~x~0_38, ~x$r_buff1_thd4~0=v_~x$r_buff1_thd4~0_19, ~x$w_buff0_used~0=v_~x$w_buff0_used~0_101} AuxVars[] AssignedVars[~x$w_buff1_used~0, ~x$r_buff0_thd4~0, ~x~0, ~x$r_buff1_thd4~0, ~x$w_buff0_used~0][72], [P3Thread1of1ForFork3InUse, Black: 190#(= ~__unbuffered_p3_EAX~0 0), Black: 192#(and (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 191#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 148#L795true, Black: 196#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 134#P0EXITtrue, 149#L845true, 217#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), Black: 207#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), Black: 209#(and (= ~__unbuffered_cnt~0 0) (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256))), 49#L873true, 175#(and (not (= |ULTIMATE.start_main_~#t686~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t685~0#1.base|)) (not (= |ULTIMATE.start_main_~#t688~0#1.base| |ULTIMATE.start_main_~#t687~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t685~0#1.base| 0) |ULTIMATE.start_main_~#t687~0#1.base| 0) |ULTIMATE.start_main_~#t686~0#1.base| 0) |ULTIMATE.start_main_~#t688~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t687~0#1.base| |ULTIMATE.start_main_~#t686~0#1.base|))), Black: 182#(and (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (not (= (* 256 (div ~main$tmp_guard1~0 256)) ~main$tmp_guard1~0)) (<= (div ~main$tmp_guard1~0 256) 0)), 21#P2EXITtrue, Black: 179#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork0InUse, P2Thread1of1ForFork1InUse, 163#true, 188#true, 204#true, P1Thread1of1ForFork2InUse]) [2022-12-13 16:46:19,580 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event [2022-12-13 16:46:19,580 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:19,580 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:19,580 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 16:46:19,686 INFO L130 PetriNetUnfolder]: 5449/8404 cut-off events. [2022-12-13 16:46:19,686 INFO L131 PetriNetUnfolder]: For 6863/7040 co-relation queries the response was YES. [2022-12-13 16:46:19,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25339 conditions, 8404 events. 5449/8404 cut-off events. For 6863/7040 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 52317 event pairs, 945 based on Foata normal form. 501/8636 useless extension candidates. Maximal degree in co-relation 25326. Up to 2893 conditions per place. [2022-12-13 16:46:19,712 INFO L137 encePairwiseOnDemand]: 282/289 looper letters, 74 selfloop transitions, 10 changer transitions 0/94 dead transitions. [2022-12-13 16:46:19,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 94 transitions, 583 flow [2022-12-13 16:46:19,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:46:19,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 16:46:19,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 714 transitions. [2022-12-13 16:46:19,714 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49411764705882355 [2022-12-13 16:46:19,714 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 714 transitions. [2022-12-13 16:46:19,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 714 transitions. [2022-12-13 16:46:19,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:19,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 714 transitions. [2022-12-13 16:46:19,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 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) [2022-12-13 16:46:19,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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) [2022-12-13 16:46:19,718 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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) [2022-12-13 16:46:19,718 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 214 flow. Second operand 5 states and 714 transitions. [2022-12-13 16:46:19,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 94 transitions, 583 flow [2022-12-13 16:46:19,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 94 transitions, 568 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:19,731 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 273 flow [2022-12-13 16:46:19,731 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=273, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2022-12-13 16:46:19,731 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 4 predicate places. [2022-12-13 16:46:19,731 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 273 flow [2022-12-13 16:46:19,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.2) internal successors, (656), 5 states have internal predecessors, (656), 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) [2022-12-13 16:46:19,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:19,732 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:19,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:46:19,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:19,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:19,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1525801200, now seen corresponding path program 1 times [2022-12-13 16:46:19,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:19,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083256657] [2022-12-13 16:46:19,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:19,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:19,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:19,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083256657] [2022-12-13 16:46:19,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083256657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:19,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:19,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:19,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309294362] [2022-12-13 16:46:19,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:19,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:46:19,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:19,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:46:19,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:46:19,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 289 [2022-12-13 16:46:19,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 273 flow. Second operand has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2022-12-13 16:46:19,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:19,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 289 [2022-12-13 16:46:19,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:21,221 INFO L130 PetriNetUnfolder]: 9328/13739 cut-off events. [2022-12-13 16:46:21,221 INFO L131 PetriNetUnfolder]: For 28286/28286 co-relation queries the response was YES. [2022-12-13 16:46:21,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49924 conditions, 13739 events. 9328/13739 cut-off events. For 28286/28286 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 79841 event pairs, 1007 based on Foata normal form. 129/13868 useless extension candidates. Maximal degree in co-relation 49911. Up to 6324 conditions per place. [2022-12-13 16:46:21,265 INFO L137 encePairwiseOnDemand]: 279/289 looper letters, 111 selfloop transitions, 21 changer transitions 35/167 dead transitions. [2022-12-13 16:46:21,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 167 transitions, 1247 flow [2022-12-13 16:46:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:46:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 16:46:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 970 transitions. [2022-12-13 16:46:21,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4794859120118636 [2022-12-13 16:46:21,268 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 970 transitions. [2022-12-13 16:46:21,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 970 transitions. [2022-12-13 16:46:21,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:21,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 970 transitions. [2022-12-13 16:46:21,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.57142857142858) internal successors, (970), 7 states have internal predecessors, (970), 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) [2022-12-13 16:46:21,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:21,272 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:21,272 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 273 flow. Second operand 7 states and 970 transitions. [2022-12-13 16:46:21,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 167 transitions, 1247 flow [2022-12-13 16:46:21,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 167 transitions, 1199 flow, removed 14 selfloop flow, removed 2 redundant places. [2022-12-13 16:46:21,300 INFO L231 Difference]: Finished difference. Result has 66 places, 57 transitions, 418 flow [2022-12-13 16:46:21,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=418, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2022-12-13 16:46:21,300 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 13 predicate places. [2022-12-13 16:46:21,300 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 418 flow [2022-12-13 16:46:21,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2022-12-13 16:46:21,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:21,301 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:21,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:46:21,301 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:21,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:21,301 INFO L85 PathProgramCache]: Analyzing trace with hash 850704328, now seen corresponding path program 2 times [2022-12-13 16:46:21,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:21,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355347964] [2022-12-13 16:46:21,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:21,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:21,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:21,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:21,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355347964] [2022-12-13 16:46:21,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355347964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:21,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:21,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:46:21,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960443717] [2022-12-13 16:46:21,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:21,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:46:21,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:21,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:46:21,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:46:21,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 289 [2022-12-13 16:46:21,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 124.33333333333333) internal successors, (746), 6 states have internal predecessors, (746), 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) [2022-12-13 16:46:21,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:21,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 289 [2022-12-13 16:46:21,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:22,757 INFO L130 PetriNetUnfolder]: 5766/8800 cut-off events. [2022-12-13 16:46:22,757 INFO L131 PetriNetUnfolder]: For 24870/24870 co-relation queries the response was YES. [2022-12-13 16:46:22,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35974 conditions, 8800 events. 5766/8800 cut-off events. For 24870/24870 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 49685 event pairs, 707 based on Foata normal form. 90/8890 useless extension candidates. Maximal degree in co-relation 35956. Up to 3174 conditions per place. [2022-12-13 16:46:22,790 INFO L137 encePairwiseOnDemand]: 279/289 looper letters, 122 selfloop transitions, 20 changer transitions 30/172 dead transitions. [2022-12-13 16:46:22,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 172 transitions, 1420 flow [2022-12-13 16:46:22,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:46:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 16:46:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 972 transitions. [2022-12-13 16:46:22,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4804745427582798 [2022-12-13 16:46:22,792 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 972 transitions. [2022-12-13 16:46:22,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 972 transitions. [2022-12-13 16:46:22,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:22,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 972 transitions. [2022-12-13 16:46:22,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.85714285714286) internal successors, (972), 7 states have internal predecessors, (972), 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) [2022-12-13 16:46:22,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:22,796 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:22,796 INFO L175 Difference]: Start difference. First operand has 66 places, 57 transitions, 418 flow. Second operand 7 states and 972 transitions. [2022-12-13 16:46:22,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 172 transitions, 1420 flow [2022-12-13 16:46:22,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 172 transitions, 1297 flow, removed 27 selfloop flow, removed 5 redundant places. [2022-12-13 16:46:22,908 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 437 flow [2022-12-13 16:46:22,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=437, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2022-12-13 16:46:22,909 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places. [2022-12-13 16:46:22,909 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 437 flow [2022-12-13 16:46:22,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.33333333333333) internal successors, (746), 6 states have internal predecessors, (746), 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) [2022-12-13 16:46:22,909 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:22,910 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:22,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:46:22,910 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:22,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:22,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1356395140, now seen corresponding path program 3 times [2022-12-13 16:46:22,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:22,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214311055] [2022-12-13 16:46:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:22,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:23,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:23,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214311055] [2022-12-13 16:46:23,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214311055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:23,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:23,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:46:23,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59946946] [2022-12-13 16:46:23,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:23,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:46:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:23,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:46:23,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:46:23,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 289 [2022-12-13 16:46:23,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 57 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2022-12-13 16:46:23,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:23,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 289 [2022-12-13 16:46:23,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:23,797 INFO L130 PetriNetUnfolder]: 3472/5599 cut-off events. [2022-12-13 16:46:23,798 INFO L131 PetriNetUnfolder]: For 10834/10955 co-relation queries the response was YES. [2022-12-13 16:46:23,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19464 conditions, 5599 events. 3472/5599 cut-off events. For 10834/10955 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 34144 event pairs, 549 based on Foata normal form. 364/5841 useless extension candidates. Maximal degree in co-relation 19447. Up to 1771 conditions per place. [2022-12-13 16:46:23,815 INFO L137 encePairwiseOnDemand]: 282/289 looper letters, 94 selfloop transitions, 14 changer transitions 3/130 dead transitions. [2022-12-13 16:46:23,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 130 transitions, 1083 flow [2022-12-13 16:46:23,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:46:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:46:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2022-12-13 16:46:23,817 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4930795847750865 [2022-12-13 16:46:23,817 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 855 transitions. [2022-12-13 16:46:23,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 855 transitions. [2022-12-13 16:46:23,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:23,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 855 transitions. [2022-12-13 16:46:23,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 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) [2022-12-13 16:46:23,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 289.0) internal successors, (2023), 7 states have internal predecessors, (2023), 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) [2022-12-13 16:46:23,822 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 289.0) internal successors, (2023), 7 states have internal predecessors, (2023), 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) [2022-12-13 16:46:23,822 INFO L175 Difference]: Start difference. First operand has 67 places, 57 transitions, 437 flow. Second operand 6 states and 855 transitions. [2022-12-13 16:46:23,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 130 transitions, 1083 flow [2022-12-13 16:46:23,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 130 transitions, 1004 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-12-13 16:46:23,839 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 476 flow [2022-12-13 16:46:23,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=476, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-12-13 16:46:23,840 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2022-12-13 16:46:23,840 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 476 flow [2022-12-13 16:46:23,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2022-12-13 16:46:23,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:23,840 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:23,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:46:23,841 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:23,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1390668875, now seen corresponding path program 1 times [2022-12-13 16:46:23,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:23,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585145271] [2022-12-13 16:46:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:23,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:23,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:23,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585145271] [2022-12-13 16:46:23,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585145271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:23,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:23,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:23,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32848629] [2022-12-13 16:46:23,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:23,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:46:23,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:23,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:46:23,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:46:24,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 289 [2022-12-13 16:46:24,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 476 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 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) [2022-12-13 16:46:24,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:24,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 289 [2022-12-13 16:46:24,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:24,998 INFO L130 PetriNetUnfolder]: 5770/8967 cut-off events. [2022-12-13 16:46:24,998 INFO L131 PetriNetUnfolder]: For 27119/27119 co-relation queries the response was YES. [2022-12-13 16:46:25,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36471 conditions, 8967 events. 5770/8967 cut-off events. For 27119/27119 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 52750 event pairs, 1382 based on Foata normal form. 16/8983 useless extension candidates. Maximal degree in co-relation 36454. Up to 4926 conditions per place. [2022-12-13 16:46:25,020 INFO L137 encePairwiseOnDemand]: 282/289 looper letters, 73 selfloop transitions, 12 changer transitions 39/124 dead transitions. [2022-12-13 16:46:25,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 124 transitions, 1131 flow [2022-12-13 16:46:25,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:46:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 16:46:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 689 transitions. [2022-12-13 16:46:25,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47681660899653977 [2022-12-13 16:46:25,022 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 689 transitions. [2022-12-13 16:46:25,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 689 transitions. [2022-12-13 16:46:25,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:25,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 689 transitions. [2022-12-13 16:46:25,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 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) [2022-12-13 16:46:25,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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) [2022-12-13 16:46:25,024 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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) [2022-12-13 16:46:25,024 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 476 flow. Second operand 5 states and 689 transitions. [2022-12-13 16:46:25,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 124 transitions, 1131 flow [2022-12-13 16:46:25,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 124 transitions, 1071 flow, removed 16 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:25,115 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 415 flow [2022-12-13 16:46:25,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=415, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2022-12-13 16:46:25,116 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 19 predicate places. [2022-12-13 16:46:25,116 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 415 flow [2022-12-13 16:46:25,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 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) [2022-12-13 16:46:25,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:25,116 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:25,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:46:25,116 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:25,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1380805340, now seen corresponding path program 1 times [2022-12-13 16:46:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:25,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619857266] [2022-12-13 16:46:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:25,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:25,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619857266] [2022-12-13 16:46:25,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619857266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:25,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:25,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:46:25,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851364756] [2022-12-13 16:46:25,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:25,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:46:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:46:25,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:46:25,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 289 [2022-12-13 16:46:25,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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) [2022-12-13 16:46:25,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:25,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 289 [2022-12-13 16:46:25,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:26,599 INFO L130 PetriNetUnfolder]: 5476/8715 cut-off events. [2022-12-13 16:46:26,599 INFO L131 PetriNetUnfolder]: For 23430/23430 co-relation queries the response was YES. [2022-12-13 16:46:26,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35021 conditions, 8715 events. 5476/8715 cut-off events. For 23430/23430 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 53752 event pairs, 530 based on Foata normal form. 16/8731 useless extension candidates. Maximal degree in co-relation 35001. Up to 3838 conditions per place. [2022-12-13 16:46:26,623 INFO L137 encePairwiseOnDemand]: 275/289 looper letters, 143 selfloop transitions, 44 changer transitions 46/233 dead transitions. [2022-12-13 16:46:26,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 233 transitions, 2089 flow [2022-12-13 16:46:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:46:26,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:46:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1218 transitions. [2022-12-13 16:46:26,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4682814302191465 [2022-12-13 16:46:26,625 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1218 transitions. [2022-12-13 16:46:26,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1218 transitions. [2022-12-13 16:46:26,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:26,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1218 transitions. [2022-12-13 16:46:26,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 135.33333333333334) internal successors, (1218), 9 states have internal predecessors, (1218), 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) [2022-12-13 16:46:26,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 289.0) internal successors, (2890), 10 states have internal predecessors, (2890), 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) [2022-12-13 16:46:26,629 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 289.0) internal successors, (2890), 10 states have internal predecessors, (2890), 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) [2022-12-13 16:46:26,629 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 415 flow. Second operand 9 states and 1218 transitions. [2022-12-13 16:46:26,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 233 transitions, 2089 flow [2022-12-13 16:46:26,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 233 transitions, 1953 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-13 16:46:26,768 INFO L231 Difference]: Finished difference. Result has 80 places, 89 transitions, 822 flow [2022-12-13 16:46:26,769 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=822, PETRI_PLACES=80, PETRI_TRANSITIONS=89} [2022-12-13 16:46:26,769 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 27 predicate places. [2022-12-13 16:46:26,769 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 89 transitions, 822 flow [2022-12-13 16:46:26,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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) [2022-12-13 16:46:26,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:26,769 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:26,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:46:26,769 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash 976635934, now seen corresponding path program 2 times [2022-12-13 16:46:26,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:26,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006844594] [2022-12-13 16:46:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:26,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:27,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:27,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006844594] [2022-12-13 16:46:27,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006844594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:27,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:27,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:46:27,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116321008] [2022-12-13 16:46:27,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:27,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:46:27,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:27,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:46:27,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:46:27,234 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 289 [2022-12-13 16:46:27,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 89 transitions, 822 flow. Second operand has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 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) [2022-12-13 16:46:27,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:27,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 289 [2022-12-13 16:46:27,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:28,601 INFO L130 PetriNetUnfolder]: 5671/9217 cut-off events. [2022-12-13 16:46:28,602 INFO L131 PetriNetUnfolder]: For 32551/32551 co-relation queries the response was YES. [2022-12-13 16:46:28,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40990 conditions, 9217 events. 5671/9217 cut-off events. For 32551/32551 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 59256 event pairs, 586 based on Foata normal form. 11/9228 useless extension candidates. Maximal degree in co-relation 40966. Up to 2580 conditions per place. [2022-12-13 16:46:28,644 INFO L137 encePairwiseOnDemand]: 277/289 looper letters, 148 selfloop transitions, 54 changer transitions 42/244 dead transitions. [2022-12-13 16:46:28,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 244 transitions, 2349 flow [2022-12-13 16:46:28,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:46:28,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:46:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1198 transitions. [2022-12-13 16:46:28,649 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4605920799692426 [2022-12-13 16:46:28,649 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1198 transitions. [2022-12-13 16:46:28,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1198 transitions. [2022-12-13 16:46:28,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:28,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1198 transitions. [2022-12-13 16:46:28,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.11111111111111) internal successors, (1198), 9 states have internal predecessors, (1198), 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) [2022-12-13 16:46:28,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 289.0) internal successors, (2890), 10 states have internal predecessors, (2890), 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) [2022-12-13 16:46:28,659 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 289.0) internal successors, (2890), 10 states have internal predecessors, (2890), 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) [2022-12-13 16:46:28,659 INFO L175 Difference]: Start difference. First operand has 80 places, 89 transitions, 822 flow. Second operand 9 states and 1198 transitions. [2022-12-13 16:46:28,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 244 transitions, 2349 flow [2022-12-13 16:46:28,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 244 transitions, 2282 flow, removed 15 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:28,853 INFO L231 Difference]: Finished difference. Result has 89 places, 102 transitions, 1112 flow [2022-12-13 16:46:28,853 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1112, PETRI_PLACES=89, PETRI_TRANSITIONS=102} [2022-12-13 16:46:28,854 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 36 predicate places. [2022-12-13 16:46:28,854 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 102 transitions, 1112 flow [2022-12-13 16:46:28,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 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) [2022-12-13 16:46:28,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:28,855 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:28,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:46:28,855 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:28,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:28,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1170569104, now seen corresponding path program 3 times [2022-12-13 16:46:28,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:28,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212041835] [2022-12-13 16:46:28,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:28,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:29,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:29,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212041835] [2022-12-13 16:46:29,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212041835] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:29,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:29,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:46:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742212101] [2022-12-13 16:46:29,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:29,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:46:29,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:29,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:46:29,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:46:29,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 289 [2022-12-13 16:46:29,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 102 transitions, 1112 flow. Second operand has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2022-12-13 16:46:29,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:29,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 289 [2022-12-13 16:46:29,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:30,180 INFO L130 PetriNetUnfolder]: 3980/6719 cut-off events. [2022-12-13 16:46:30,180 INFO L131 PetriNetUnfolder]: For 27706/28214 co-relation queries the response was YES. [2022-12-13 16:46:30,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30899 conditions, 6719 events. 3980/6719 cut-off events. For 27706/28214 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 46031 event pairs, 374 based on Foata normal form. 335/6880 useless extension candidates. Maximal degree in co-relation 30870. Up to 2538 conditions per place. [2022-12-13 16:46:30,212 INFO L137 encePairwiseOnDemand]: 282/289 looper letters, 93 selfloop transitions, 18 changer transitions 85/205 dead transitions. [2022-12-13 16:46:30,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 205 transitions, 2425 flow [2022-12-13 16:46:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:46:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 16:46:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 971 transitions. [2022-12-13 16:46:30,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4799802273850717 [2022-12-13 16:46:30,214 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 971 transitions. [2022-12-13 16:46:30,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 971 transitions. [2022-12-13 16:46:30,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:30,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 971 transitions. [2022-12-13 16:46:30,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:46:30,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:30,217 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:30,217 INFO L175 Difference]: Start difference. First operand has 89 places, 102 transitions, 1112 flow. Second operand 7 states and 971 transitions. [2022-12-13 16:46:30,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 205 transitions, 2425 flow [2022-12-13 16:46:30,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 205 transitions, 2349 flow, removed 16 selfloop flow, removed 4 redundant places. [2022-12-13 16:46:30,473 INFO L231 Difference]: Finished difference. Result has 92 places, 65 transitions, 581 flow [2022-12-13 16:46:30,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=581, PETRI_PLACES=92, PETRI_TRANSITIONS=65} [2022-12-13 16:46:30,474 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 39 predicate places. [2022-12-13 16:46:30,474 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 65 transitions, 581 flow [2022-12-13 16:46:30,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2022-12-13 16:46:30,475 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:30,475 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:30,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:46:30,475 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash 606975205, now seen corresponding path program 1 times [2022-12-13 16:46:30,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:30,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800468297] [2022-12-13 16:46:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:30,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:30,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800468297] [2022-12-13 16:46:30,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800468297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:30,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:30,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:46:30,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631174897] [2022-12-13 16:46:30,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:30,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:46:30,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:30,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:46:30,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:46:30,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 289 [2022-12-13 16:46:30,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 65 transitions, 581 flow. Second operand has 6 states, 6 states have (on average 125.66666666666667) internal successors, (754), 6 states have internal predecessors, (754), 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) [2022-12-13 16:46:30,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:30,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 289 [2022-12-13 16:46:30,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:31,134 INFO L130 PetriNetUnfolder]: 2063/3342 cut-off events. [2022-12-13 16:46:31,134 INFO L131 PetriNetUnfolder]: For 14411/14411 co-relation queries the response was YES. [2022-12-13 16:46:31,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16659 conditions, 3342 events. 2063/3342 cut-off events. For 14411/14411 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 17632 event pairs, 338 based on Foata normal form. 1/3343 useless extension candidates. Maximal degree in co-relation 16631. Up to 1977 conditions per place. [2022-12-13 16:46:31,143 INFO L137 encePairwiseOnDemand]: 282/289 looper letters, 61 selfloop transitions, 8 changer transitions 65/134 dead transitions. [2022-12-13 16:46:31,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 134 transitions, 1420 flow [2022-12-13 16:46:31,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:46:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 16:46:31,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 917 transitions. [2022-12-13 16:46:31,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4532871972318339 [2022-12-13 16:46:31,145 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 917 transitions. [2022-12-13 16:46:31,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 917 transitions. [2022-12-13 16:46:31,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:31,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 917 transitions. [2022-12-13 16:46:31,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2022-12-13 16:46:31,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:31,149 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 289.0) internal successors, (2312), 8 states have internal predecessors, (2312), 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) [2022-12-13 16:46:31,149 INFO L175 Difference]: Start difference. First operand has 92 places, 65 transitions, 581 flow. Second operand 7 states and 917 transitions. [2022-12-13 16:46:31,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 134 transitions, 1420 flow [2022-12-13 16:46:31,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 134 transitions, 1153 flow, removed 57 selfloop flow, removed 15 redundant places. [2022-12-13 16:46:31,201 INFO L231 Difference]: Finished difference. Result has 82 places, 54 transitions, 370 flow [2022-12-13 16:46:31,202 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=82, PETRI_TRANSITIONS=54} [2022-12-13 16:46:31,202 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 29 predicate places. [2022-12-13 16:46:31,202 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 54 transitions, 370 flow [2022-12-13 16:46:31,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.66666666666667) internal successors, (754), 6 states have internal predecessors, (754), 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) [2022-12-13 16:46:31,203 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:31,203 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:31,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:46:31,203 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:31,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:31,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2120396305, now seen corresponding path program 2 times [2022-12-13 16:46:31,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:31,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502928184] [2022-12-13 16:46:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:31,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:31,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:31,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502928184] [2022-12-13 16:46:31,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502928184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:31,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:31,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:46:31,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181919843] [2022-12-13 16:46:31,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:31,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:46:31,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:31,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:46:31,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:46:31,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 289 [2022-12-13 16:46:31,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 54 transitions, 370 flow. Second operand has 8 states, 8 states have (on average 121.5) internal successors, (972), 8 states have internal predecessors, (972), 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) [2022-12-13 16:46:31,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:31,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 289 [2022-12-13 16:46:31,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:32,054 INFO L130 PetriNetUnfolder]: 532/895 cut-off events. [2022-12-13 16:46:32,054 INFO L131 PetriNetUnfolder]: For 1848/1848 co-relation queries the response was YES. [2022-12-13 16:46:32,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3723 conditions, 895 events. 532/895 cut-off events. For 1848/1848 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3512 event pairs, 36 based on Foata normal form. 1/896 useless extension candidates. Maximal degree in co-relation 3699. Up to 368 conditions per place. [2022-12-13 16:46:32,058 INFO L137 encePairwiseOnDemand]: 278/289 looper letters, 81 selfloop transitions, 18 changer transitions 27/126 dead transitions. [2022-12-13 16:46:32,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 126 transitions, 1039 flow [2022-12-13 16:46:32,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:46:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:46:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1139 transitions. [2022-12-13 16:46:32,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43790849673202614 [2022-12-13 16:46:32,062 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1139 transitions. [2022-12-13 16:46:32,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1139 transitions. [2022-12-13 16:46:32,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:32,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1139 transitions. [2022-12-13 16:46:32,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 126.55555555555556) internal successors, (1139), 9 states have internal predecessors, (1139), 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) [2022-12-13 16:46:32,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 289.0) internal successors, (2890), 10 states have internal predecessors, (2890), 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) [2022-12-13 16:46:32,065 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 289.0) internal successors, (2890), 10 states have internal predecessors, (2890), 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) [2022-12-13 16:46:32,065 INFO L175 Difference]: Start difference. First operand has 82 places, 54 transitions, 370 flow. Second operand 9 states and 1139 transitions. [2022-12-13 16:46:32,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 126 transitions, 1039 flow [2022-12-13 16:46:32,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 126 transitions, 819 flow, removed 21 selfloop flow, removed 18 redundant places. [2022-12-13 16:46:32,072 INFO L231 Difference]: Finished difference. Result has 75 places, 59 transitions, 376 flow [2022-12-13 16:46:32,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=376, PETRI_PLACES=75, PETRI_TRANSITIONS=59} [2022-12-13 16:46:32,072 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2022-12-13 16:46:32,072 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 376 flow [2022-12-13 16:46:32,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.5) internal successors, (972), 8 states have internal predecessors, (972), 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) [2022-12-13 16:46:32,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:32,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:32,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:46:32,073 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:32,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:32,073 INFO L85 PathProgramCache]: Analyzing trace with hash 24392835, now seen corresponding path program 3 times [2022-12-13 16:46:32,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:32,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668049380] [2022-12-13 16:46:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:32,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:32,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:32,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:46:32,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668049380] [2022-12-13 16:46:32,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668049380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:32,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:32,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:46:32,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126888036] [2022-12-13 16:46:32,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:32,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:46:32,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:46:32,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:46:32,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:46:32,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 289 [2022-12-13 16:46:32,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 376 flow. Second operand has 9 states, 9 states have (on average 128.66666666666666) internal successors, (1158), 9 states have internal predecessors, (1158), 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) [2022-12-13 16:46:32,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:32,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 289 [2022-12-13 16:46:32,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:33,034 INFO L130 PetriNetUnfolder]: 409/719 cut-off events. [2022-12-13 16:46:33,034 INFO L131 PetriNetUnfolder]: For 1602/1618 co-relation queries the response was YES. [2022-12-13 16:46:33,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 719 events. 409/719 cut-off events. For 1602/1618 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2829 event pairs, 66 based on Foata normal form. 7/716 useless extension candidates. Maximal degree in co-relation 2723. Up to 472 conditions per place. [2022-12-13 16:46:33,037 INFO L137 encePairwiseOnDemand]: 282/289 looper letters, 52 selfloop transitions, 7 changer transitions 35/98 dead transitions. [2022-12-13 16:46:33,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 98 transitions, 712 flow [2022-12-13 16:46:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:46:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 16:46:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1057 transitions. [2022-12-13 16:46:33,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45717993079584773 [2022-12-13 16:46:33,039 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1057 transitions. [2022-12-13 16:46:33,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1057 transitions. [2022-12-13 16:46:33,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:33,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1057 transitions. [2022-12-13 16:46:33,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 132.125) internal successors, (1057), 8 states have internal predecessors, (1057), 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) [2022-12-13 16:46:33,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 289.0) internal successors, (2601), 9 states have internal predecessors, (2601), 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) [2022-12-13 16:46:33,044 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 289.0) internal successors, (2601), 9 states have internal predecessors, (2601), 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) [2022-12-13 16:46:33,044 INFO L175 Difference]: Start difference. First operand has 75 places, 59 transitions, 376 flow. Second operand 8 states and 1057 transitions. [2022-12-13 16:46:33,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 98 transitions, 712 flow [2022-12-13 16:46:33,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 98 transitions, 686 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-12-13 16:46:33,047 INFO L231 Difference]: Finished difference. Result has 79 places, 50 transitions, 300 flow [2022-12-13 16:46:33,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=300, PETRI_PLACES=79, PETRI_TRANSITIONS=50} [2022-12-13 16:46:33,048 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 26 predicate places. [2022-12-13 16:46:33,048 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 50 transitions, 300 flow [2022-12-13 16:46:33,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 128.66666666666666) internal successors, (1158), 9 states have internal predecessors, (1158), 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) [2022-12-13 16:46:33,048 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:33,048 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:33,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:46:33,049 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash 796848381, now seen corresponding path program 4 times [2022-12-13 16:46:33,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:46:33,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465684175] [2022-12-13 16:46:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:33,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:46:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:46:33,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:46:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:46:33,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:46:33,160 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:46:33,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 16:46:33,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 16:46:33,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 16:46:33,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 16:46:33,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 16:46:33,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 16:46:33,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 16:46:33,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 16:46:33,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 16:46:33,164 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:33,170 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:46:33,170 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:46:33,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:46:33 BasicIcfg [2022-12-13 16:46:33,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:46:33,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:46:33,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:46:33,221 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:46:33,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:46:05" (3/4) ... [2022-12-13 16:46:33,224 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:46:33,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:46:33,224 INFO L158 Benchmark]: Toolchain (without parser) took 29223.15ms. Allocated memory was 157.3MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 129.3MB in the beginning and 1.1GB in the end (delta: -991.2MB). Peak memory consumption was 436.7MB. Max. memory is 16.1GB. [2022-12-13 16:46:33,224 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:46:33,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.69ms. Allocated memory is still 157.3MB. Free memory was 129.1MB in the beginning and 101.4MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 16:46:33,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.25ms. Allocated memory is still 157.3MB. Free memory was 101.0MB in the beginning and 98.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:46:33,225 INFO L158 Benchmark]: Boogie Preprocessor took 28.56ms. Allocated memory is still 157.3MB. Free memory was 98.8MB in the beginning and 96.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:46:33,225 INFO L158 Benchmark]: RCFGBuilder took 577.00ms. Allocated memory is still 157.3MB. Free memory was 96.8MB in the beginning and 119.1MB in the end (delta: -22.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-12-13 16:46:33,225 INFO L158 Benchmark]: TraceAbstraction took 28075.97ms. Allocated memory was 157.3MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 118.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 424.0MB. Max. memory is 16.1GB. [2022-12-13 16:46:33,225 INFO L158 Benchmark]: Witness Printer took 2.39ms. Allocated memory is still 1.6GB. Free memory is still 1.1GB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:46:33,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.69ms. Allocated memory is still 157.3MB. Free memory was 129.1MB in the beginning and 101.4MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.25ms. Allocated memory is still 157.3MB. Free memory was 101.0MB in the beginning and 98.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.56ms. Allocated memory is still 157.3MB. Free memory was 98.8MB in the beginning and 96.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.00ms. Allocated memory is still 157.3MB. Free memory was 96.8MB in the beginning and 119.1MB in the end (delta: -22.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * TraceAbstraction took 28075.97ms. Allocated memory was 157.3MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 118.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 424.0MB. Max. memory is 16.1GB. * Witness Printer took 2.39ms. Allocated memory is still 1.6GB. Free memory is still 1.1GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 156 PlacesBefore, 53 PlacesAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 3570 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 10181 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4920, independent: 4679, independent conditional: 0, independent unconditional: 4679, dependent: 241, dependent conditional: 0, dependent unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1859, independent: 1823, independent conditional: 0, independent unconditional: 1823, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4920, independent: 2856, independent conditional: 0, independent unconditional: 2856, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 1859, unknown conditional: 0, unknown unconditional: 1859] , Statistics on independence cache: Total cache size (in pairs): 226, Positive cache size: 205, Positive conditional cache size: 0, Positive unconditional cache size: 205, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L711] 0 int __unbuffered_cnt = 0; [L713] 0 int __unbuffered_p0_EAX = 0; [L715] 0 int __unbuffered_p1_EAX = 0; [L717] 0 int __unbuffered_p3_EAX = 0; [L719] 0 int __unbuffered_p3_EBX = 0; [L721] 0 int a = 0; [L722] 0 _Bool main$tmp_guard0; [L723] 0 _Bool main$tmp_guard1; [L725] 0 int x = 0; [L726] 0 _Bool x$flush_delayed; [L727] 0 int x$mem_tmp; [L728] 0 _Bool x$r_buff0_thd0; [L729] 0 _Bool x$r_buff0_thd1; [L730] 0 _Bool x$r_buff0_thd2; [L731] 0 _Bool x$r_buff0_thd3; [L732] 0 _Bool x$r_buff0_thd4; [L733] 0 _Bool x$r_buff1_thd0; [L734] 0 _Bool x$r_buff1_thd1; [L735] 0 _Bool x$r_buff1_thd2; [L736] 0 _Bool x$r_buff1_thd3; [L737] 0 _Bool x$r_buff1_thd4; [L738] 0 _Bool x$read_delayed; [L739] 0 int *x$read_delayed_var; [L740] 0 int x$w_buff0; [L741] 0 _Bool x$w_buff0_used; [L742] 0 int x$w_buff1; [L743] 0 _Bool x$w_buff1_used; [L745] 0 int y = 0; [L747] 0 int z = 0; [L748] 0 _Bool weak$$choice0; [L749] 0 _Bool weak$$choice2; [L862] 0 pthread_t t685; [L863] FCALL, FORK 0 pthread_create(&t685, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t685, ((void *)0), P0, ((void *)0))=-3, t685={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L864] 0 pthread_t t686; [L865] FCALL, FORK 0 pthread_create(&t686, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t686, ((void *)0), P1, ((void *)0))=-2, t685={5:0}, t686={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L866] 0 pthread_t t687; [L867] FCALL, FORK 0 pthread_create(&t687, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t687, ((void *)0), P2, ((void *)0))=-1, t685={5:0}, t686={6:0}, t687={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L868] 0 pthread_t t688; [L869] FCALL, FORK 0 pthread_create(&t688, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t688, ((void *)0), P3, ((void *)0))=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L781] 2 x$w_buff1 = x$w_buff0 [L782] 2 x$w_buff0 = 1 [L783] 2 x$w_buff1_used = x$w_buff0_used [L784] 2 x$w_buff0_used = (_Bool)1 [L785] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L785] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L786] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L787] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L788] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L789] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L790] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L791] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L794] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L811] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L814] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L831] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L834] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L837] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L753] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L756] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 1 x$flush_delayed = weak$$choice2 [L759] 1 x$mem_tmp = x [L760] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L761] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L762] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L763] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L764] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L766] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L767] 1 __unbuffered_p0_EAX = x [L768] 1 x = x$flush_delayed ? x$mem_tmp : x [L769] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L797] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L798] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L799] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L800] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L801] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L804] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L806] 2 return 0; [L774] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L776] 1 return 0; [L840] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L841] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L842] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L843] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L844] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L817] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L818] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L819] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L820] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L821] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L826] 3 return 0; [L847] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L849] 4 return 0; [L871] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L873] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L873] RET 0 assume_abort_if_not(main$tmp_guard0) [L875] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L876] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L877] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L878] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L879] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t685={5:0}, t686={6:0}, t687={7:0}, t688={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L882] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L884] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 860]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 867]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.9s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 19.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1682 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1409 mSDsluCounter, 1234 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 933 mSDsCounter, 193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3588 IncrementalHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 193 mSolverCounterUnsat, 301 mSDtfsCounter, 3588 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1112occurred in iteration=13, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 342 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 297 ConstructedInterpolants, 0 QuantifiedInterpolants, 2952 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 16:46:33,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8 --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 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- 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-2329fc7 [2022-12-13 16:46:34,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:46:34,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:46:34,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:46:34,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:46:34,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:46:34,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:46:34,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:46:34,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:46:34,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:46:34,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:46:34,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:46:34,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:46:34,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:46:34,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:46:34,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:46:34,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:46:34,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:46:34,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:46:34,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:46:34,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:46:34,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:46:34,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:46:34,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:46:34,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:46:34,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:46:34,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:46:34,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:46:34,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:46:34,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:46:34,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:46:34,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:46:34,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:46:34,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:46:34,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:46:34,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:46:34,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:46:34,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:46:34,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:46:34,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:46:34,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:46:34,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 16:46:34,843 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:46:34,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:46:34,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:46:34,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:46:34,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:46:34,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:46:34,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:46:34,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:46:34,845 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:46:34,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:46:34,846 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:46:34,846 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:46:34,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:46:34,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:46:34,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:46:34,846 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 16:46:34,847 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 16:46:34,847 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 16:46:34,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:46:34,847 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:46:34,847 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:46:34,848 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:46:34,848 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:46:34,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:46:34,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:46:34,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:46:34,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:46:34,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:46:34,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:46:34,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:46:34,849 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:46:34,849 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:46:34,850 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:46:34,850 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:46:34,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:46:34,850 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:46:34,850 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:46:34,851 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_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8 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 -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2022-12-13 16:46:35,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:46:35,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:46:35,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:46:35,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:46:35,149 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:46:35,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-12-13 16:46:37,780 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:46:37,980 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:46:37,980 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2022-12-13 16:46:37,991 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data/c68050ecc/820615f3a52848f38b52d7b4dfcb1bf5/FLAG4d4077299 [2022-12-13 16:46:38,001 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/data/c68050ecc/820615f3a52848f38b52d7b4dfcb1bf5 [2022-12-13 16:46:38,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:46:38,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:46:38,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:46:38,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:46:38,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:46:38,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b7d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38, skipping insertion in model container [2022-12-13 16:46:38,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:46:38,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:46:38,208 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_47d655b9-a02a-4bf9-9332-786279a315b8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-12-13 16:46:38,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:46:38,392 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:46:38,401 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_47d655b9-a02a-4bf9-9332-786279a315b8/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i[1001,1014] [2022-12-13 16:46:38,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:46:38,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:46:38,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:46:38,487 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:46:38,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38 WrapperNode [2022-12-13 16:46:38,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:46:38,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:46:38,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:46:38,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:46:38,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,534 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-12-13 16:46:38,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:46:38,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:46:38,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:46:38,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:46:38,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:46:38,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:46:38,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:46:38,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:46:38,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (1/1) ... [2022-12-13 16:46:38,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:46:38,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:46:38,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:46:38,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:46:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 16:46:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:46:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:46:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:46:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 16:46:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:46:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 16:46:38,628 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 16:46:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 16:46:38,628 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 16:46:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 16:46:38,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 16:46:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 16:46:38,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 16:46:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 16:46:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:46:38,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:46:38,631 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:46:38,761 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:46:38,763 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:46:39,049 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:46:39,122 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:46:39,122 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:46:39,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:46:39 BoogieIcfgContainer [2022-12-13 16:46:39,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:46:39,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:46:39,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:46:39,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:46:39,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:46:38" (1/3) ... [2022-12-13 16:46:39,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213df208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:46:39, skipping insertion in model container [2022-12-13 16:46:39,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:46:38" (2/3) ... [2022-12-13 16:46:39,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213df208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:46:39, skipping insertion in model container [2022-12-13 16:46:39,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:46:39" (3/3) ... [2022-12-13 16:46:39,131 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2022-12-13 16:46:39,145 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:46:39,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 16:46:39,146 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:46:39,193 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:46:39,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 16:46:39,284 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 16:46:39,284 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:39,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 16:46:39,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 16:46:39,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2022-12-13 16:46:39,295 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:46:39,302 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 16:46:39,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 16:46:39,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2022-12-13 16:46:39,339 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 16:46:39,339 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:39,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 16:46:39,343 INFO L119 LiptonReduction]: Number of co-enabled transitions 3570 [2022-12-13 16:46:45,884 INFO L134 LiptonReduction]: Checked pairs total: 10250 [2022-12-13 16:46:45,884 INFO L136 LiptonReduction]: Total number of compositions: 138 [2022-12-13 16:46:45,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:46:45,900 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;@6e4dabc9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:46:45,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 16:46:45,902 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 16:46:45,902 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:45,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:45,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:46:45,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:45,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:45,908 INFO L85 PathProgramCache]: Analyzing trace with hash 615, now seen corresponding path program 1 times [2022-12-13 16:46:45,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:45,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780605716] [2022-12-13 16:46:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:45,919 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 [2022-12-13 16:46:45,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:45,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:45,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:45,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:46:46,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:46,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:46,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:46,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:46,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780605716] [2022-12-13 16:46:46,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780605716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:46,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:46,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:46:46,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396775441] [2022-12-13 16:46:46,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:46,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:46:46,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:46:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:46:46,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 288 [2022-12-13 16:46:46,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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) [2022-12-13 16:46:46,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:46,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 288 [2022-12-13 16:46:46,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:47,449 INFO L130 PetriNetUnfolder]: 7925/11078 cut-off events. [2022-12-13 16:46:47,449 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-13 16:46:47,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21988 conditions, 11078 events. 7925/11078 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 60450 event pairs, 7925 based on Foata normal form. 320/9666 useless extension candidates. Maximal degree in co-relation 21976. Up to 10695 conditions per place. [2022-12-13 16:46:47,508 INFO L137 encePairwiseOnDemand]: 279/288 looper letters, 28 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2022-12-13 16:46:47,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 132 flow [2022-12-13 16:46:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:46:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:46:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2022-12-13 16:46:47,518 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5364583333333334 [2022-12-13 16:46:47,518 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 309 transitions. [2022-12-13 16:46:47,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions. [2022-12-13 16:46:47,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:47,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions. [2022-12-13 16:46:47,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 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) [2022-12-13 16:46:47,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2022-12-13 16:46:47,527 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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) [2022-12-13 16:46:47,528 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 2 states and 309 transitions. [2022-12-13 16:46:47,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 132 flow [2022-12-13 16:46:47,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 16:46:47,535 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 72 flow [2022-12-13 16:46:47,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2022-12-13 16:46:47,541 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -11 predicate places. [2022-12-13 16:46:47,541 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 72 flow [2022-12-13 16:46:47,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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) [2022-12-13 16:46:47,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:47,542 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:46:47,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:47,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:47,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:47,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:47,744 INFO L85 PathProgramCache]: Analyzing trace with hash 579785571, now seen corresponding path program 1 times [2022-12-13 16:46:47,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:47,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931881299] [2022-12-13 16:46:47,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:47,745 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 [2022-12-13 16:46:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:47,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:47,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:47,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:46:47,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:47,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:47,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:47,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931881299] [2022-12-13 16:46:47,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931881299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:47,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:47,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:46:47,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232450494] [2022-12-13 16:46:47,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:47,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:46:47,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:47,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:46:47,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:46:47,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2022-12-13 16:46:47,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2022-12-13 16:46:47,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:47,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2022-12-13 16:46:47,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:48,920 INFO L130 PetriNetUnfolder]: 6231/9076 cut-off events. [2022-12-13 16:46:48,920 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:46:48,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17697 conditions, 9076 events. 6231/9076 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 54371 event pairs, 1149 based on Foata normal form. 0/8240 useless extension candidates. Maximal degree in co-relation 17694. Up to 6739 conditions per place. [2022-12-13 16:46:48,952 INFO L137 encePairwiseOnDemand]: 285/288 looper letters, 41 selfloop transitions, 2 changer transitions 4/51 dead transitions. [2022-12-13 16:46:48,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 208 flow [2022-12-13 16:46:48,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:46:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:46:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-12-13 16:46:48,955 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5243055555555556 [2022-12-13 16:46:48,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-12-13 16:46:48,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-12-13 16:46:48,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:48,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-12-13 16:46:48,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2022-12-13 16:46:48,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-12-13 16:46:48,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-12-13 16:46:48,959 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 72 flow. Second operand 3 states and 453 transitions. [2022-12-13 16:46:48,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 208 flow [2022-12-13 16:46:48,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:46:48,960 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 70 flow [2022-12-13 16:46:48,960 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2022-12-13 16:46:48,961 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2022-12-13 16:46:48,961 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 70 flow [2022-12-13 16:46:48,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2022-12-13 16:46:48,961 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:48,961 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:48,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:49,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:49,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:49,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1300966941, now seen corresponding path program 1 times [2022-12-13 16:46:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:49,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51171013] [2022-12-13 16:46:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:49,168 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 [2022-12-13 16:46:49,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:49,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:49,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:49,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:46:49,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:49,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:49,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:49,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51171013] [2022-12-13 16:46:49,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51171013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:49,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:49,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:46:49,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311040626] [2022-12-13 16:46:49,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:49,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:46:49,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:49,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:46:49,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:46:49,307 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2022-12-13 16:46:49,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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) [2022-12-13 16:46:49,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:49,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2022-12-13 16:46:49,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:49,807 INFO L130 PetriNetUnfolder]: 3075/4444 cut-off events. [2022-12-13 16:46:49,807 INFO L131 PetriNetUnfolder]: For 286/286 co-relation queries the response was YES. [2022-12-13 16:46:49,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9283 conditions, 4444 events. 3075/4444 cut-off events. For 286/286 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 22639 event pairs, 693 based on Foata normal form. 81/4294 useless extension candidates. Maximal degree in co-relation 9279. Up to 3944 conditions per place. [2022-12-13 16:46:49,820 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 38 selfloop transitions, 5 changer transitions 0/47 dead transitions. [2022-12-13 16:46:49,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 200 flow [2022-12-13 16:46:49,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:46:49,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:46:49,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2022-12-13 16:46:49,822 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5057870370370371 [2022-12-13 16:46:49,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2022-12-13 16:46:49,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2022-12-13 16:46:49,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:49,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2022-12-13 16:46:49,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2022-12-13 16:46:49,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-12-13 16:46:49,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-12-13 16:46:49,825 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 70 flow. Second operand 3 states and 437 transitions. [2022-12-13 16:46:49,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 200 flow [2022-12-13 16:46:49,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:46:49,827 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 99 flow [2022-12-13 16:46:49,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2022-12-13 16:46:49,827 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -11 predicate places. [2022-12-13 16:46:49,827 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 99 flow [2022-12-13 16:46:49,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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) [2022-12-13 16:46:49,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:49,828 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:49,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:50,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:50,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:50,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:50,029 INFO L85 PathProgramCache]: Analyzing trace with hash 671545951, now seen corresponding path program 1 times [2022-12-13 16:46:50,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:50,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638383005] [2022-12-13 16:46:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:50,030 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 [2022-12-13 16:46:50,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:50,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:50,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:50,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:46:50,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:50,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:50,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:50,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638383005] [2022-12-13 16:46:50,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638383005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:50,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:50,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:46:50,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972612881] [2022-12-13 16:46:50,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:50,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:46:50,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:50,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:46:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:46:50,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2022-12-13 16:46:50,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 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) [2022-12-13 16:46:50,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:50,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2022-12-13 16:46:50,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:50,473 INFO L130 PetriNetUnfolder]: 1455/2284 cut-off events. [2022-12-13 16:46:50,473 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2022-12-13 16:46:50,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5488 conditions, 2284 events. 1455/2284 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 11322 event pairs, 343 based on Foata normal form. 108/2303 useless extension candidates. Maximal degree in co-relation 5483. Up to 1244 conditions per place. [2022-12-13 16:46:50,479 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 50 selfloop transitions, 9 changer transitions 0/63 dead transitions. [2022-12-13 16:46:50,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 63 transitions, 295 flow [2022-12-13 16:46:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:46:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 16:46:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 584 transitions. [2022-12-13 16:46:50,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5069444444444444 [2022-12-13 16:46:50,482 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 584 transitions. [2022-12-13 16:46:50,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 584 transitions. [2022-12-13 16:46:50,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:50,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 584 transitions. [2022-12-13 16:46:50,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:46:50,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 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) [2022-12-13 16:46:50,488 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 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) [2022-12-13 16:46:50,488 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 99 flow. Second operand 4 states and 584 transitions. [2022-12-13 16:46:50,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 63 transitions, 295 flow [2022-12-13 16:46:50,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:46:50,490 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 146 flow [2022-12-13 16:46:50,491 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2022-12-13 16:46:50,491 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2022-12-13 16:46:50,491 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 146 flow [2022-12-13 16:46:50,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 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) [2022-12-13 16:46:50,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:50,492 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:50,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 16:46:50,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:50,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1824605934, now seen corresponding path program 1 times [2022-12-13 16:46:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:50,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769105596] [2022-12-13 16:46:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:50,698 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 [2022-12-13 16:46:50,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:50,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:50,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (6)] Waiting until timeout for monitored process [2022-12-13 16:46:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:50,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 16:46:50,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:50,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:50,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:50,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769105596] [2022-12-13 16:46:50,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769105596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:50,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:50,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:50,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398402305] [2022-12-13 16:46:50,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:50,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:46:50,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:50,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:46:50,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:46:50,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2022-12-13 16:46:50,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 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) [2022-12-13 16:46:50,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:50,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2022-12-13 16:46:50,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:51,206 INFO L130 PetriNetUnfolder]: 915/1474 cut-off events. [2022-12-13 16:46:51,206 INFO L131 PetriNetUnfolder]: For 972/972 co-relation queries the response was YES. [2022-12-13 16:46:51,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 1474 events. 915/1474 cut-off events. For 972/972 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6916 event pairs, 277 based on Foata normal form. 54/1493 useless extension candidates. Maximal degree in co-relation 4005. Up to 540 conditions per place. [2022-12-13 16:46:51,211 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 60 selfloop transitions, 13 changer transitions 0/77 dead transitions. [2022-12-13 16:46:51,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 77 transitions, 400 flow [2022-12-13 16:46:51,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:46:51,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 16:46:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2022-12-13 16:46:51,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.50625 [2022-12-13 16:46:51,213 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2022-12-13 16:46:51,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2022-12-13 16:46:51,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:51,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2022-12-13 16:46:51,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 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) [2022-12-13 16:46:51,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 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) [2022-12-13 16:46:51,216 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 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) [2022-12-13 16:46:51,216 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 146 flow. Second operand 5 states and 729 transitions. [2022-12-13 16:46:51,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 77 transitions, 400 flow [2022-12-13 16:46:51,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 77 transitions, 382 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 16:46:51,219 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 196 flow [2022-12-13 16:46:51,219 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=196, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2022-12-13 16:46:51,219 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2022-12-13 16:46:51,220 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 196 flow [2022-12-13 16:46:51,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 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) [2022-12-13 16:46:51,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:51,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:51,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (6)] Ended with exit code 0 [2022-12-13 16:46:51,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:51,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:51,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:51,422 INFO L85 PathProgramCache]: Analyzing trace with hash 714632932, now seen corresponding path program 1 times [2022-12-13 16:46:51,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:51,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578667151] [2022-12-13 16:46:51,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:51,425 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 [2022-12-13 16:46:51,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:51,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:51,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (7)] Waiting until timeout for monitored process [2022-12-13 16:46:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:51,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 16:46:51,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:51,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:51,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:51,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578667151] [2022-12-13 16:46:51,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578667151] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:51,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:51,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:46:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229873427] [2022-12-13 16:46:51,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:51,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:46:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:51,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:46:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:46:51,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2022-12-13 16:46:51,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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) [2022-12-13 16:46:51,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:51,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2022-12-13 16:46:51,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:51,999 INFO L130 PetriNetUnfolder]: 855/1354 cut-off events. [2022-12-13 16:46:51,999 INFO L131 PetriNetUnfolder]: For 1114/1114 co-relation queries the response was YES. [2022-12-13 16:46:52,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3825 conditions, 1354 events. 855/1354 cut-off events. For 1114/1114 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6317 event pairs, 272 based on Foata normal form. 12/1343 useless extension candidates. Maximal degree in co-relation 3818. Up to 540 conditions per place. [2022-12-13 16:46:52,005 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 56 selfloop transitions, 17 changer transitions 0/77 dead transitions. [2022-12-13 16:46:52,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 77 transitions, 426 flow [2022-12-13 16:46:52,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:46:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:46:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 860 transitions. [2022-12-13 16:46:52,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4976851851851852 [2022-12-13 16:46:52,007 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 860 transitions. [2022-12-13 16:46:52,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 860 transitions. [2022-12-13 16:46:52,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:52,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 860 transitions. [2022-12-13 16:46:52,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.33333333333334) internal successors, (860), 6 states have internal predecessors, (860), 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) [2022-12-13 16:46:52,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 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) [2022-12-13 16:46:52,011 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 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) [2022-12-13 16:46:52,011 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 196 flow. Second operand 6 states and 860 transitions. [2022-12-13 16:46:52,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 77 transitions, 426 flow [2022-12-13 16:46:52,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 77 transitions, 392 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:52,020 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 206 flow [2022-12-13 16:46:52,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=206, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2022-12-13 16:46:52,020 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2022-12-13 16:46:52,020 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 206 flow [2022-12-13 16:46:52,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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) [2022-12-13 16:46:52,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:52,021 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:52,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (7)] Ended with exit code 0 [2022-12-13 16:46:52,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:52,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:52,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:52,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1634514298, now seen corresponding path program 1 times [2022-12-13 16:46:52,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:52,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176774204] [2022-12-13 16:46:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:52,223 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 [2022-12-13 16:46:52,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:52,223 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:52,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (8)] Waiting until timeout for monitored process [2022-12-13 16:46:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:52,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 16:46:52,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:52,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:52,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:52,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176774204] [2022-12-13 16:46:52,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176774204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:52,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:52,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:52,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111132192] [2022-12-13 16:46:52,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:52,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:46:52,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:52,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:46:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:46:53,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 288 [2022-12-13 16:46:53,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2022-12-13 16:46:53,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:53,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 288 [2022-12-13 16:46:53,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:54,128 INFO L130 PetriNetUnfolder]: 855/1400 cut-off events. [2022-12-13 16:46:54,128 INFO L131 PetriNetUnfolder]: For 1400/1400 co-relation queries the response was YES. [2022-12-13 16:46:54,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3944 conditions, 1400 events. 855/1400 cut-off events. For 1400/1400 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6709 event pairs, 112 based on Foata normal form. 0/1384 useless extension candidates. Maximal degree in co-relation 3936. Up to 1044 conditions per place. [2022-12-13 16:46:54,133 INFO L137 encePairwiseOnDemand]: 283/288 looper letters, 58 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2022-12-13 16:46:54,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 66 transitions, 461 flow [2022-12-13 16:46:54,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:46:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:46:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 739 transitions. [2022-12-13 16:46:54,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42766203703703703 [2022-12-13 16:46:54,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 739 transitions. [2022-12-13 16:46:54,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 739 transitions. [2022-12-13 16:46:54,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:54,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 739 transitions. [2022-12-13 16:46:54,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 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) [2022-12-13 16:46:54,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 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) [2022-12-13 16:46:54,138 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 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) [2022-12-13 16:46:54,139 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 206 flow. Second operand 6 states and 739 transitions. [2022-12-13 16:46:54,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 66 transitions, 461 flow [2022-12-13 16:46:54,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 66 transitions, 386 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-12-13 16:46:54,143 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 162 flow [2022-12-13 16:46:54,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2022-12-13 16:46:54,144 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2022-12-13 16:46:54,144 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 162 flow [2022-12-13 16:46:54,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2022-12-13 16:46:54,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:54,144 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:54,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (8)] Forceful destruction successful, exit code 0 [2022-12-13 16:46:54,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:54,346 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:54,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:54,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1863023706, now seen corresponding path program 1 times [2022-12-13 16:46:54,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:54,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718434195] [2022-12-13 16:46:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:46:54,349 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 [2022-12-13 16:46:54,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:54,353 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:54,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (9)] Waiting until timeout for monitored process [2022-12-13 16:46:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:46:54,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:46:54,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:54,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:54,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:54,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718434195] [2022-12-13 16:46:54,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718434195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:54,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:54,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:54,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584489008] [2022-12-13 16:46:54,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:54,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:46:54,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:54,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:46:54,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:46:54,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2022-12-13 16:46:54,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-12-13 16:46:54,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:54,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2022-12-13 16:46:54,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:54,862 INFO L130 PetriNetUnfolder]: 1263/1919 cut-off events. [2022-12-13 16:46:54,862 INFO L131 PetriNetUnfolder]: For 1083/1083 co-relation queries the response was YES. [2022-12-13 16:46:54,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5258 conditions, 1919 events. 1263/1919 cut-off events. For 1083/1083 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8897 event pairs, 333 based on Foata normal form. 1/1912 useless extension candidates. Maximal degree in co-relation 5250. Up to 1162 conditions per place. [2022-12-13 16:46:54,866 INFO L137 encePairwiseOnDemand]: 284/288 looper letters, 50 selfloop transitions, 1 changer transitions 33/87 dead transitions. [2022-12-13 16:46:54,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 536 flow [2022-12-13 16:46:54,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:46:54,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 16:46:54,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 710 transitions. [2022-12-13 16:46:54,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4930555555555556 [2022-12-13 16:46:54,868 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 710 transitions. [2022-12-13 16:46:54,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 710 transitions. [2022-12-13 16:46:54,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:54,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 710 transitions. [2022-12-13 16:46:54,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2022-12-13 16:46:54,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 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) [2022-12-13 16:46:54,873 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 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) [2022-12-13 16:46:54,873 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 162 flow. Second operand 5 states and 710 transitions. [2022-12-13 16:46:54,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 536 flow [2022-12-13 16:46:54,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 87 transitions, 524 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 16:46:54,889 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 164 flow [2022-12-13 16:46:54,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2022-12-13 16:46:54,890 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2022-12-13 16:46:54,890 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 164 flow [2022-12-13 16:46:54,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-12-13 16:46:54,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:54,891 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:54,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (9)] Forceful destruction successful, exit code 0 [2022-12-13 16:46:55,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:55,091 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:55,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash -2080673830, now seen corresponding path program 2 times [2022-12-13 16:46:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:55,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634048385] [2022-12-13 16:46:55,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:46:55,092 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 [2022-12-13 16:46:55,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:55,093 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:55,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (10)] Waiting until timeout for monitored process [2022-12-13 16:46:55,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 16:46:55,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:46:55,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:46:55,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:55,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:55,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:55,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634048385] [2022-12-13 16:46:55,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634048385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:55,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:55,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:46:55,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943042357] [2022-12-13 16:46:55,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:55,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:46:55,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:55,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:46:55,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:46:55,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2022-12-13 16:46:55,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-12-13 16:46:55,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:55,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2022-12-13 16:46:55,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:55,654 INFO L130 PetriNetUnfolder]: 1636/2634 cut-off events. [2022-12-13 16:46:55,654 INFO L131 PetriNetUnfolder]: For 2047/2047 co-relation queries the response was YES. [2022-12-13 16:46:55,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7230 conditions, 2634 events. 1636/2634 cut-off events. For 2047/2047 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 13987 event pairs, 230 based on Foata normal form. 1/2617 useless extension candidates. Maximal degree in co-relation 7219. Up to 1267 conditions per place. [2022-12-13 16:46:55,660 INFO L137 encePairwiseOnDemand]: 284/288 looper letters, 52 selfloop transitions, 1 changer transitions 29/85 dead transitions. [2022-12-13 16:46:55,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 85 transitions, 532 flow [2022-12-13 16:46:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:46:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 16:46:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 708 transitions. [2022-12-13 16:46:55,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2022-12-13 16:46:55,662 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 708 transitions. [2022-12-13 16:46:55,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 708 transitions. [2022-12-13 16:46:55,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:55,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 708 transitions. [2022-12-13 16:46:55,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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) [2022-12-13 16:46:55,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 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) [2022-12-13 16:46:55,668 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 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) [2022-12-13 16:46:55,668 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 164 flow. Second operand 5 states and 708 transitions. [2022-12-13 16:46:55,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 85 transitions, 532 flow [2022-12-13 16:46:55,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 85 transitions, 523 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:55,687 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 168 flow [2022-12-13 16:46:55,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2022-12-13 16:46:55,688 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2022-12-13 16:46:55,688 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 168 flow [2022-12-13 16:46:55,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-12-13 16:46:55,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:55,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:55,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (10)] Ended with exit code 0 [2022-12-13 16:46:55,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:55,889 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:55,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:55,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1834146294, now seen corresponding path program 3 times [2022-12-13 16:46:55,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:55,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683857490] [2022-12-13 16:46:55,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 16:46:55,890 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 [2022-12-13 16:46:55,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:55,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:55,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (11)] Waiting until timeout for monitored process [2022-12-13 16:46:55,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 16:46:55,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:46:55,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 16:46:55,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:56,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:56,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:56,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:56,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683857490] [2022-12-13 16:46:56,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683857490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:56,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:56,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:46:56,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905277181] [2022-12-13 16:46:56,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:56,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:46:56,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:56,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:46:56,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:46:56,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 288 [2022-12-13 16:46:56,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 168 flow. Second operand has 7 states, 7 states have (on average 132.42857142857142) internal successors, (927), 7 states have internal predecessors, (927), 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) [2022-12-13 16:46:56,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:56,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 288 [2022-12-13 16:46:56,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:56,758 INFO L130 PetriNetUnfolder]: 1411/2331 cut-off events. [2022-12-13 16:46:56,759 INFO L131 PetriNetUnfolder]: For 2228/2228 co-relation queries the response was YES. [2022-12-13 16:46:56,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6861 conditions, 2331 events. 1411/2331 cut-off events. For 2228/2228 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 12576 event pairs, 439 based on Foata normal form. 1/2303 useless extension candidates. Maximal degree in co-relation 6849. Up to 1133 conditions per place. [2022-12-13 16:46:56,767 INFO L137 encePairwiseOnDemand]: 280/288 looper letters, 62 selfloop transitions, 7 changer transitions 48/121 dead transitions. [2022-12-13 16:46:56,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 121 transitions, 772 flow [2022-12-13 16:46:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:46:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 16:46:56,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1108 transitions. [2022-12-13 16:46:56,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4809027777777778 [2022-12-13 16:46:56,772 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1108 transitions. [2022-12-13 16:46:56,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1108 transitions. [2022-12-13 16:46:56,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:56,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1108 transitions. [2022-12-13 16:46:56,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.5) internal successors, (1108), 8 states have internal predecessors, (1108), 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) [2022-12-13 16:46:56,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:46:56,780 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:46:56,780 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 168 flow. Second operand 8 states and 1108 transitions. [2022-12-13 16:46:56,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 121 transitions, 772 flow [2022-12-13 16:46:56,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 121 transitions, 761 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:56,801 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 206 flow [2022-12-13 16:46:56,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=206, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2022-12-13 16:46:56,802 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2022-12-13 16:46:56,802 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 206 flow [2022-12-13 16:46:56,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 132.42857142857142) internal successors, (927), 7 states have internal predecessors, (927), 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) [2022-12-13 16:46:56,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:56,803 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:56,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (11)] Ended with exit code 0 [2022-12-13 16:46:57,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:57,004 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:57,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:57,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1390096826, now seen corresponding path program 4 times [2022-12-13 16:46:57,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:57,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825582434] [2022-12-13 16:46:57,008 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 16:46:57,009 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 [2022-12-13 16:46:57,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:57,010 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:57,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (12)] Waiting until timeout for monitored process [2022-12-13 16:46:57,128 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 16:46:57,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:46:57,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:46:57,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:57,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:57,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:57,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825582434] [2022-12-13 16:46:57,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825582434] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:57,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:57,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:46:57,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330761732] [2022-12-13 16:46:57,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:57,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:46:57,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:57,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:46:57,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:46:57,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 288 [2022-12-13 16:46:57,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 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) [2022-12-13 16:46:57,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:57,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 288 [2022-12-13 16:46:57,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:57,623 INFO L130 PetriNetUnfolder]: 1902/3121 cut-off events. [2022-12-13 16:46:57,623 INFO L131 PetriNetUnfolder]: For 3592/3615 co-relation queries the response was YES. [2022-12-13 16:46:57,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10288 conditions, 3121 events. 1902/3121 cut-off events. For 3592/3615 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17437 event pairs, 666 based on Foata normal form. 5/3074 useless extension candidates. Maximal degree in co-relation 10274. Up to 1591 conditions per place. [2022-12-13 16:46:57,631 INFO L137 encePairwiseOnDemand]: 284/288 looper letters, 50 selfloop transitions, 2 changer transitions 23/78 dead transitions. [2022-12-13 16:46:57,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 78 transitions, 520 flow [2022-12-13 16:46:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:46:57,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 16:46:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 570 transitions. [2022-12-13 16:46:57,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4947916666666667 [2022-12-13 16:46:57,633 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 570 transitions. [2022-12-13 16:46:57,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 570 transitions. [2022-12-13 16:46:57,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:57,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 570 transitions. [2022-12-13 16:46:57,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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) [2022-12-13 16:46:57,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 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) [2022-12-13 16:46:57,638 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 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) [2022-12-13 16:46:57,638 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 206 flow. Second operand 4 states and 570 transitions. [2022-12-13 16:46:57,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 78 transitions, 520 flow [2022-12-13 16:46:57,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 78 transitions, 513 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:57,674 INFO L231 Difference]: Finished difference. Result has 61 places, 45 transitions, 211 flow [2022-12-13 16:46:57,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=61, PETRI_TRANSITIONS=45} [2022-12-13 16:46:57,675 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2022-12-13 16:46:57,675 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 45 transitions, 211 flow [2022-12-13 16:46:57,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 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) [2022-12-13 16:46:57,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:57,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:57,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (12)] Ended with exit code 0 [2022-12-13 16:46:57,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:57,877 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:57,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1162869678, now seen corresponding path program 5 times [2022-12-13 16:46:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:57,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604254474] [2022-12-13 16:46:57,881 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 16:46:57,881 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 [2022-12-13 16:46:57,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:57,885 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:57,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (13)] Waiting until timeout for monitored process [2022-12-13 16:46:57,985 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 16:46:57,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:46:57,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 16:46:57,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:58,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:58,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:58,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604254474] [2022-12-13 16:46:58,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604254474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:58,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:58,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:46:58,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019235251] [2022-12-13 16:46:58,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:58,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:46:58,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:58,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:46:58,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:46:58,264 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 288 [2022-12-13 16:46:58,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 45 transitions, 211 flow. Second operand has 8 states, 8 states have (on average 132.0) internal successors, (1056), 8 states have internal predecessors, (1056), 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) [2022-12-13 16:46:58,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:58,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 288 [2022-12-13 16:46:58,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:58,678 INFO L130 PetriNetUnfolder]: 1019/1710 cut-off events. [2022-12-13 16:46:58,678 INFO L131 PetriNetUnfolder]: For 2029/2087 co-relation queries the response was YES. [2022-12-13 16:46:58,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5975 conditions, 1710 events. 1019/1710 cut-off events. For 2029/2087 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 8372 event pairs, 197 based on Foata normal form. 39/1731 useless extension candidates. Maximal degree in co-relation 5961. Up to 541 conditions per place. [2022-12-13 16:46:58,682 INFO L137 encePairwiseOnDemand]: 281/288 looper letters, 61 selfloop transitions, 8 changer transitions 41/114 dead transitions. [2022-12-13 16:46:58,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 114 transitions, 785 flow [2022-12-13 16:46:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:46:58,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 16:46:58,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1098 transitions. [2022-12-13 16:46:58,684 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4765625 [2022-12-13 16:46:58,684 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1098 transitions. [2022-12-13 16:46:58,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1098 transitions. [2022-12-13 16:46:58,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:58,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1098 transitions. [2022-12-13 16:46:58,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 137.25) internal successors, (1098), 8 states have internal predecessors, (1098), 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) [2022-12-13 16:46:58,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:46:58,687 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:46:58,688 INFO L175 Difference]: Start difference. First operand has 61 places, 45 transitions, 211 flow. Second operand 8 states and 1098 transitions. [2022-12-13 16:46:58,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 114 transitions, 785 flow [2022-12-13 16:46:58,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 114 transitions, 769 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 16:46:58,699 INFO L231 Difference]: Finished difference. Result has 68 places, 47 transitions, 244 flow [2022-12-13 16:46:58,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=244, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2022-12-13 16:46:58,699 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2022-12-13 16:46:58,699 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 47 transitions, 244 flow [2022-12-13 16:46:58,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.0) internal successors, (1056), 8 states have internal predecessors, (1056), 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) [2022-12-13 16:46:58,700 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:58,700 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:58,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (13)] Ended with exit code 0 [2022-12-13 16:46:58,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:58,901 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:58,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:58,902 INFO L85 PathProgramCache]: Analyzing trace with hash -240463336, now seen corresponding path program 6 times [2022-12-13 16:46:58,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:58,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198498819] [2022-12-13 16:46:58,904 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 16:46:58,904 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 [2022-12-13 16:46:58,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:58,907 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:58,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (14)] Waiting until timeout for monitored process [2022-12-13 16:46:59,032 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-13 16:46:59,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:46:59,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 16:46:59,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:46:59,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:46:59,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:46:59,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:46:59,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198498819] [2022-12-13 16:46:59,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198498819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:46:59,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:46:59,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:46:59,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578600388] [2022-12-13 16:46:59,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:46:59,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:46:59,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:46:59,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:46:59,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:46:59,292 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 288 [2022-12-13 16:46:59,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 47 transitions, 244 flow. Second operand has 8 states, 8 states have (on average 132.0) internal successors, (1056), 8 states have internal predecessors, (1056), 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) [2022-12-13 16:46:59,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:46:59,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 288 [2022-12-13 16:46:59,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:46:59,755 INFO L130 PetriNetUnfolder]: 879/1505 cut-off events. [2022-12-13 16:46:59,755 INFO L131 PetriNetUnfolder]: For 3054/3112 co-relation queries the response was YES. [2022-12-13 16:46:59,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5538 conditions, 1505 events. 879/1505 cut-off events. For 3054/3112 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7311 event pairs, 296 based on Foata normal form. 41/1529 useless extension candidates. Maximal degree in co-relation 5522. Up to 814 conditions per place. [2022-12-13 16:46:59,759 INFO L137 encePairwiseOnDemand]: 281/288 looper letters, 64 selfloop transitions, 8 changer transitions 37/113 dead transitions. [2022-12-13 16:46:59,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 113 transitions, 806 flow [2022-12-13 16:46:59,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:46:59,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 16:46:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1095 transitions. [2022-12-13 16:46:59,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4752604166666667 [2022-12-13 16:46:59,761 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1095 transitions. [2022-12-13 16:46:59,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1095 transitions. [2022-12-13 16:46:59,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:46:59,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1095 transitions. [2022-12-13 16:46:59,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.875) internal successors, (1095), 8 states have internal predecessors, (1095), 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) [2022-12-13 16:46:59,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:46:59,764 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:46:59,765 INFO L175 Difference]: Start difference. First operand has 68 places, 47 transitions, 244 flow. Second operand 8 states and 1095 transitions. [2022-12-13 16:46:59,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 113 transitions, 806 flow [2022-12-13 16:46:59,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 113 transitions, 780 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-12-13 16:46:59,774 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 267 flow [2022-12-13 16:46:59,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=267, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2022-12-13 16:46:59,774 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 18 predicate places. [2022-12-13 16:46:59,775 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 267 flow [2022-12-13 16:46:59,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.0) internal successors, (1056), 8 states have internal predecessors, (1056), 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) [2022-12-13 16:46:59,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:46:59,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:46:59,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (14)] Ended with exit code 0 [2022-12-13 16:46:59,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:46:59,976 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:46:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:46:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1183984886, now seen corresponding path program 7 times [2022-12-13 16:46:59,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:46:59,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695046202] [2022-12-13 16:46:59,977 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 16:46:59,977 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 [2022-12-13 16:46:59,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:46:59,978 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:46:59,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (15)] Waiting until timeout for monitored process [2022-12-13 16:47:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:47:00,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 16:47:00,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:47:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:47:00,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:47:00,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:47:00,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695046202] [2022-12-13 16:47:00,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695046202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:47:00,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:47:00,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:47:00,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898102514] [2022-12-13 16:47:00,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:47:00,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:47:00,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:47:00,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:47:00,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:47:00,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 288 [2022-12-13 16:47:00,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 267 flow. Second operand has 9 states, 9 states have (on average 131.66666666666666) internal successors, (1185), 9 states have internal predecessors, (1185), 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) [2022-12-13 16:47:00,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:47:00,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 288 [2022-12-13 16:47:00,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:47:00,773 INFO L130 PetriNetUnfolder]: 716/1222 cut-off events. [2022-12-13 16:47:00,773 INFO L131 PetriNetUnfolder]: For 2815/2877 co-relation queries the response was YES. [2022-12-13 16:47:00,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4793 conditions, 1222 events. 716/1222 cut-off events. For 2815/2877 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5498 event pairs, 108 based on Foata normal form. 44/1256 useless extension candidates. Maximal degree in co-relation 4776. Up to 591 conditions per place. [2022-12-13 16:47:00,777 INFO L137 encePairwiseOnDemand]: 281/288 looper letters, 51 selfloop transitions, 7 changer transitions 32/94 dead transitions. [2022-12-13 16:47:00,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 94 transitions, 671 flow [2022-12-13 16:47:00,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:47:00,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 16:47:00,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1086 transitions. [2022-12-13 16:47:00,781 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4713541666666667 [2022-12-13 16:47:00,781 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1086 transitions. [2022-12-13 16:47:00,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1086 transitions. [2022-12-13 16:47:00,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:47:00,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1086 transitions. [2022-12-13 16:47:00,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 135.75) internal successors, (1086), 8 states have internal predecessors, (1086), 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) [2022-12-13 16:47:00,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:47:00,784 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 288.0) internal successors, (2592), 9 states have internal predecessors, (2592), 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) [2022-12-13 16:47:00,784 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 267 flow. Second operand 8 states and 1086 transitions. [2022-12-13 16:47:00,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 94 transitions, 671 flow [2022-12-13 16:47:00,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 94 transitions, 658 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 16:47:00,791 INFO L231 Difference]: Finished difference. Result has 74 places, 49 transitions, 281 flow [2022-12-13 16:47:00,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=281, PETRI_PLACES=74, PETRI_TRANSITIONS=49} [2022-12-13 16:47:00,792 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, 21 predicate places. [2022-12-13 16:47:00,792 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 49 transitions, 281 flow [2022-12-13 16:47:00,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.66666666666666) internal successors, (1185), 9 states have internal predecessors, (1185), 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) [2022-12-13 16:47:00,792 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:47:00,792 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:47:00,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (15)] Ended with exit code 0 [2022-12-13 16:47:00,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:47:00,993 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 16:47:00,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:47:00,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1492553996, now seen corresponding path program 8 times [2022-12-13 16:47:00,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:47:00,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151116343] [2022-12-13 16:47:00,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:47:00,997 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 [2022-12-13 16:47:00,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:47:01,000 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:47:01,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (16)] Waiting until timeout for monitored process [2022-12-13 16:47:01,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 16:47:01,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 16:47:01,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:47:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:47:01,233 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 16:47:01,233 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:47:01,234 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 16:47:01,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 16:47:01,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 16:47:01,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 16:47:01,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 16:47:01,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 16:47:01,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 16:47:01,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 16:47:01,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 16:47:01,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 16:47:01,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 16:47:01,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 16:47:01,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 16:47:01,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 16:47:01,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 16:47:01,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 16:47:01,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 (16)] Forceful destruction successful, exit code 0 [2022-12-13 16:47:01,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:47:01,439 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:47:01,455 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:47:01,456 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:47:01,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:47:01 BasicIcfg [2022-12-13 16:47:01,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:47:01,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:47:01,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:47:01,548 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:47:01,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:46:39" (3/4) ... [2022-12-13 16:47:01,551 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:47:01,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:47:01,551 INFO L158 Benchmark]: Toolchain (without parser) took 23546.90ms. Allocated memory was 77.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 54.5MB in the beginning and 738.3MB in the end (delta: -683.8MB). Peak memory consumption was 463.6MB. Max. memory is 16.1GB. [2022-12-13 16:47:01,552 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:47:01,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.18ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 47.9MB in the end (delta: 6.6MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-13 16:47:01,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.33ms. Allocated memory is still 77.6MB. Free memory was 47.9MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:47:01,552 INFO L158 Benchmark]: Boogie Preprocessor took 30.32ms. Allocated memory is still 77.6MB. Free memory was 45.4MB in the beginning and 43.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:47:01,552 INFO L158 Benchmark]: RCFGBuilder took 558.90ms. Allocated memory is still 77.6MB. Free memory was 43.0MB in the beginning and 53.0MB in the end (delta: -10.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2022-12-13 16:47:01,553 INFO L158 Benchmark]: TraceAbstraction took 22420.08ms. Allocated memory was 77.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 52.4MB in the beginning and 738.3MB in the end (delta: -685.8MB). Peak memory consumption was 458.6MB. Max. memory is 16.1GB. [2022-12-13 16:47:01,553 INFO L158 Benchmark]: Witness Printer took 3.42ms. Allocated memory is still 1.2GB. Free memory is still 738.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:47:01,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.18ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 47.9MB in the end (delta: 6.6MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.33ms. Allocated memory is still 77.6MB. Free memory was 47.9MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.32ms. Allocated memory is still 77.6MB. Free memory was 45.4MB in the beginning and 43.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 558.90ms. Allocated memory is still 77.6MB. Free memory was 43.0MB in the beginning and 53.0MB in the end (delta: -10.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22420.08ms. Allocated memory was 77.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 52.4MB in the beginning and 738.3MB in the end (delta: -685.8MB). Peak memory consumption was 458.6MB. Max. memory is 16.1GB. * Witness Printer took 3.42ms. Allocated memory is still 1.2GB. Free memory is still 738.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 157 PlacesBefore, 53 PlacesAfterwards, 146 TransitionsBefore, 41 TransitionsAfterwards, 3570 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 138 TotalNumberOfCompositions, 10250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4201, independent: 3958, independent conditional: 0, independent unconditional: 3958, dependent: 243, dependent conditional: 0, dependent unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1856, independent: 1814, independent conditional: 0, independent unconditional: 1814, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4201, independent: 2144, independent conditional: 0, independent unconditional: 2144, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 1856, unknown conditional: 0, unknown unconditional: 1856] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 190, Positive conditional cache size: 0, Positive unconditional cache size: 190, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L711] 0 int __unbuffered_cnt = 0; [L713] 0 int __unbuffered_p0_EAX = 0; [L715] 0 int __unbuffered_p1_EAX = 0; [L717] 0 int __unbuffered_p3_EAX = 0; [L719] 0 int __unbuffered_p3_EBX = 0; [L721] 0 int a = 0; [L722] 0 _Bool main$tmp_guard0; [L723] 0 _Bool main$tmp_guard1; [L725] 0 int x = 0; [L726] 0 _Bool x$flush_delayed; [L727] 0 int x$mem_tmp; [L728] 0 _Bool x$r_buff0_thd0; [L729] 0 _Bool x$r_buff0_thd1; [L730] 0 _Bool x$r_buff0_thd2; [L731] 0 _Bool x$r_buff0_thd3; [L732] 0 _Bool x$r_buff0_thd4; [L733] 0 _Bool x$r_buff1_thd0; [L734] 0 _Bool x$r_buff1_thd1; [L735] 0 _Bool x$r_buff1_thd2; [L736] 0 _Bool x$r_buff1_thd3; [L737] 0 _Bool x$r_buff1_thd4; [L738] 0 _Bool x$read_delayed; [L739] 0 int *x$read_delayed_var; [L740] 0 int x$w_buff0; [L741] 0 _Bool x$w_buff0_used; [L742] 0 int x$w_buff1; [L743] 0 _Bool x$w_buff1_used; [L745] 0 int y = 0; [L747] 0 int z = 0; [L748] 0 _Bool weak$$choice0; [L749] 0 _Bool weak$$choice2; [L862] 0 pthread_t t685; [L863] FCALL, FORK 0 pthread_create(&t685, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t685, ((void *)0), P0, ((void *)0))=-1, t685={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L864] 0 pthread_t t686; [L865] FCALL, FORK 0 pthread_create(&t686, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t686, ((void *)0), P1, ((void *)0))=0, t685={3:0}, t686={-2147483641:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L866] 0 pthread_t t687; [L867] FCALL, FORK 0 pthread_create(&t687, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t687, ((void *)0), P2, ((void *)0))=1, t685={3:0}, t686={-2147483641:0}, t687={-2147483645:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L868] 0 pthread_t t688; [L869] FCALL, FORK 0 pthread_create(&t688, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t688, ((void *)0), P3, ((void *)0))=2, t685={3:0}, t686={-2147483641:0}, t687={-2147483645:0}, t688={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L781] 2 x$w_buff1 = x$w_buff0 [L782] 2 x$w_buff0 = 1 [L783] 2 x$w_buff1_used = x$w_buff0_used [L784] 2 x$w_buff0_used = (_Bool)1 [L785] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L785] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L786] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L787] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L788] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L789] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L790] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L791] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L794] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L811] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L814] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L831] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L834] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L837] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L753] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L756] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 1 x$flush_delayed = weak$$choice2 [L759] 1 x$mem_tmp = x [L760] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L761] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L762] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L763] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L764] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L766] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L767] 1 __unbuffered_p0_EAX = x [L768] 1 x = x$flush_delayed ? x$mem_tmp : x [L769] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L774] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L776] 1 return 0; [L797] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L798] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L799] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L800] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L801] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L804] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L806] 2 return 0; [L817] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L818] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L819] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L820] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L821] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L840] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L841] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L842] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L843] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L844] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L826] 3 return 0; [L847] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L849] 4 return 0; [L871] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L873] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) VAL [\old(cond)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L873] RET 0 assume_abort_if_not(main$tmp_guard0) [L875] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L876] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L877] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L878] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L879] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t685={3:0}, t686={-2147483641:0}, t687={-2147483645:0}, t688={7:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] [L882] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L884] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=2] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 860]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 867]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 22.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 767 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 599 mSDsluCounter, 499 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 434 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2990 IncrementalHoareTripleChecker+Invalid, 3113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 65 mSDtfsCounter, 2990 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=14, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 285 ConstructedInterpolants, 21 QuantifiedInterpolants, 2629 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2322 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 16:47:01,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d655b9-a02a-4bf9-9332-786279a315b8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample