./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --- 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 07:02:30,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 07:02:30,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 07:02:30,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 07:02:30,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 07:02:30,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 07:02:30,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 07:02:30,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 07:02:30,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 07:02:30,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 07:02:30,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 07:02:30,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 07:02:30,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 07:02:30,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 07:02:30,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 07:02:30,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 07:02:30,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 07:02:30,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 07:02:30,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 07:02:30,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 07:02:30,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 07:02:30,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 07:02:30,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 07:02:30,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 07:02:30,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 07:02:30,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 07:02:30,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 07:02:30,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 07:02:30,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 07:02:30,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 07:02:30,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 07:02:30,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 07:02:30,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 07:02:30,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 07:02:30,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 07:02:30,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 07:02:30,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 07:02:30,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 07:02:30,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 07:02:30,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 07:02:30,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 07:02:30,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 07:02:30,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 07:02:30,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 07:02:30,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 07:02:30,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 07:02:30,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 07:02:30,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 07:02:30,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 07:02:30,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 07:02:30,290 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 07:02:30,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 07:02:30,291 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 07:02:30,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 07:02:30,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 07:02:30,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 07:02:30,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 07:02:30,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 07:02:30,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 07:02:30,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 07:02:30,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 07:02:30,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 07:02:30,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 07:02:30,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 07:02:30,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 07:02:30,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 07:02:30,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:02:30,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 07:02:30,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 07:02:30,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 07:02:30,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 07:02:30,294 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 07:02:30,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 07:02:30,295 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 07:02:30,295 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 07:02:30,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 07:02:30,295 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 07:02:30,295 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 07:02:30,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 [2022-12-13 07:02:30,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 07:02:30,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 07:02:30,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 07:02:30,497 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 07:02:30,498 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 07:02:30,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2022-12-13 07:02:33,004 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 07:02:33,220 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 07:02:33,221 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/sv-benchmarks/c/pthread-atomic/szymanski.i [2022-12-13 07:02:33,233 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/data/29735568c/c69a6f0954bf4acdb97be388ef7dd16c/FLAGa2193b368 [2022-12-13 07:02:33,602 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/data/29735568c/c69a6f0954bf4acdb97be388ef7dd16c [2022-12-13 07:02:33,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 07:02:33,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 07:02:33,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 07:02:33,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 07:02:33,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 07:02:33,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:33,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c15654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33, skipping insertion in model container [2022-12-13 07:02:33,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:33,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 07:02:33,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 07:02:33,792 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 07:02:33,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,893 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_65ff8abf-c3c0-4789-a624-03dbe3df4c98/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2022-12-13 07:02:33,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,907 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_65ff8abf-c3c0-4789-a624-03dbe3df4c98/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2022-12-13 07:02:33,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:02:33,922 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 07:02:33,934 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 07:02:33,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,962 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_65ff8abf-c3c0-4789-a624-03dbe3df4c98/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2022-12-13 07:02:33,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,972 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_65ff8abf-c3c0-4789-a624-03dbe3df4c98/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2022-12-13 07:02:33,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:02:33,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:02:33,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:02:33,999 INFO L208 MainTranslator]: Completed translation [2022-12-13 07:02:33,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33 WrapperNode [2022-12-13 07:02:33,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 07:02:34,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 07:02:34,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 07:02:34,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 07:02:34,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,035 INFO L138 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-12-13 07:02:34,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 07:02:34,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 07:02:34,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 07:02:34,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 07:02:34,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,057 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 07:02:34,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 07:02:34,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 07:02:34,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 07:02:34,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (1/1) ... [2022-12-13 07:02:34,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:02:34,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:34,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:34,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 07:02:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 07:02:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-13 07:02:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-13 07:02:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 07:02:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 07:02:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 07:02:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 07:02:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 07:02:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 07:02:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 07:02:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 07:02:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 07:02:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 07:02:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 07:02:34,123 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 07:02:34,222 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 07:02:34,223 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 07:02:34,361 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 07:02:34,366 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 07:02:34,366 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 07:02:34,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:02:34 BoogieIcfgContainer [2022-12-13 07:02:34,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 07:02:34,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 07:02:34,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 07:02:34,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 07:02:34,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:02:33" (1/3) ... [2022-12-13 07:02:34,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceb23c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:02:34, skipping insertion in model container [2022-12-13 07:02:34,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:33" (2/3) ... [2022-12-13 07:02:34,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceb23c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:02:34, skipping insertion in model container [2022-12-13 07:02:34,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:02:34" (3/3) ... [2022-12-13 07:02:34,375 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2022-12-13 07:02:34,385 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 07:02:34,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 07:02:34,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 07:02:34,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 07:02:34,459 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 07:02:34,492 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:34,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:34,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:34,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:34,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 07:02:34,521 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:34,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2022-12-13 07:02:34,535 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9e74315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:34,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 07:02:34,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:34,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:34,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1355783458, now seen corresponding path program 1 times [2022-12-13 07:02:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:34,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074597038] [2022-12-13 07:02:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:34,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 07:02:35,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:35,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074597038] [2022-12-13 07:02:35,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074597038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:35,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:35,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479408894] [2022-12-13 07:02:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:35,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:35,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:35,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,083 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:35,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 07:02:35,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 07:02:35,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:35,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash 711565407, now seen corresponding path program 1 times [2022-12-13 07:02:35,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:35,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87008342] [2022-12-13 07:02:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:35,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-13 07:02:35,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:35,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87008342] [2022-12-13 07:02:35,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87008342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:35,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:35,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814537452] [2022-12-13 07:02:35,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:35,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:35,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:35,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:35,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,239 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:35,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 07:02:35,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 07:02:35,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:35,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash 945043967, now seen corresponding path program 1 times [2022-12-13 07:02:35,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:35,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926247961] [2022-12-13 07:02:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:35,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 07:02:35,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:35,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926247961] [2022-12-13 07:02:35,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926247961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:35,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:35,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:35,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762565717] [2022-12-13 07:02:35,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:35,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:35,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,350 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:35,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 07:02:35,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 07:02:35,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:35,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:35,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1257972145, now seen corresponding path program 1 times [2022-12-13 07:02:35,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:35,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632798164] [2022-12-13 07:02:35,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:35,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 07:02:35,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:35,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632798164] [2022-12-13 07:02:35,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632798164] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:35,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145364745] [2022-12-13 07:02:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:35,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:35,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:35,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:35,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 07:02:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:35,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 07:02:35,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 07:02:35,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:02:35,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145364745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:35,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:02:35,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-13 07:02:35,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006276273] [2022-12-13 07:02:35,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:35,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 07:02:35,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:35,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 07:02:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 07:02:35,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,620 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:35,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 07:02:35,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:35,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 07:02:35,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-13 07:02:35,846 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:35,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:35,848 INFO L85 PathProgramCache]: Analyzing trace with hash 485580544, now seen corresponding path program 1 times [2022-12-13 07:02:35,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:35,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856860271] [2022-12-13 07:02:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:35,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 07:02:35,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:35,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856860271] [2022-12-13 07:02:35,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856860271] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:35,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73836538] [2022-12-13 07:02:35,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:35,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:35,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:35,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:35,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 07:02:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:36,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 07:02:36,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:36,108 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 07:02:36,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 07:02:36,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73836538] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:36,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:36,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-12-13 07:02:36,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598969021] [2022-12-13 07:02:36,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:36,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 07:02:36,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:36,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 07:02:36,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 07:02:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:36,149 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:36,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 07:02:36,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:36,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:36,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 07:02:36,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:36,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:36,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:36,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1805261331, now seen corresponding path program 1 times [2022-12-13 07:02:36,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:36,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645925361] [2022-12-13 07:02:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:36,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:36,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 07:02:36,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:36,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645925361] [2022-12-13 07:02:36,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645925361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:36,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:36,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:36,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971150142] [2022-12-13 07:02:36,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:36,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:36,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:36,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:36,628 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:36,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 07:02:36,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:37,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 07:02:37,128 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:37,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:37,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1068839378, now seen corresponding path program 1 times [2022-12-13 07:02:37,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:37,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597679588] [2022-12-13 07:02:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:37,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:02:37,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597679588] [2022-12-13 07:02:37,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597679588] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602195280] [2022-12-13 07:02:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:37,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:37,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:37,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:37,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 07:02:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:37,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 07:02:37,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:02:37,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:02:37,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602195280] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:37,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:37,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-12-13 07:02:37,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484984292] [2022-12-13 07:02:37,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:37,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 07:02:37,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:37,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 07:02:37,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 07:02:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:37,283 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:37,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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 07:02:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:37,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:37,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:37,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:37,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:37,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 07:02:37,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 07:02:37,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 07:02:38,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:38,176 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-13 07:02:38,178 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/3) [2022-12-13 07:02:38,182 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:38,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:38,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:38,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:38,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-12-13 07:02:38,186 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:38,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 07:02:38,188 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9e74315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:38,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 07:02:38,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2022-12-13 07:02:38,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 07:02:38,226 INFO L445 BasicCegarLoop]: Path program histogram: [] [2022-12-13 07:02:38,226 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2022-12-13 07:02:38,228 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:38,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:38,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:38,229 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:38,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2022-12-13 07:02:38,232 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:38,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork1 ======== [2022-12-13 07:02:38,233 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9e74315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:38,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 07:02:38,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:38,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1246161179, now seen corresponding path program 1 times [2022-12-13 07:02:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:38,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869064329] [2022-12-13 07:02:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-13 07:02:38,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:38,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869064329] [2022-12-13 07:02:38,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869064329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:38,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:38,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:38,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369054260] [2022-12-13 07:02:38,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:38,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:38,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:38,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,418 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:38,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 07:02:38,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 07:02:38,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:38,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:38,452 INFO L85 PathProgramCache]: Analyzing trace with hash 95020892, now seen corresponding path program 1 times [2022-12-13 07:02:38,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:38,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252883070] [2022-12-13 07:02:38,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:38,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 07:02:38,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:38,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252883070] [2022-12-13 07:02:38,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252883070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:38,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:38,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:38,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345171988] [2022-12-13 07:02:38,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:38,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:38,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:38,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:38,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,529 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:38,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 07:02:38,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 07:02:38,559 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:38,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash -447016708, now seen corresponding path program 1 times [2022-12-13 07:02:38,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:38,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113262608] [2022-12-13 07:02:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:38,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:38,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:38,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113262608] [2022-12-13 07:02:38,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113262608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:38,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:38,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:38,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579265597] [2022-12-13 07:02:38,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:38,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:38,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:38,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:38,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:38,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,621 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:38,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 07:02:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 07:02:38,656 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:38,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:38,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2114393520, now seen corresponding path program 1 times [2022-12-13 07:02:38,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:38,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410066275] [2022-12-13 07:02:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:38,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 07:02:38,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:38,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410066275] [2022-12-13 07:02:38,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410066275] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:38,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026637377] [2022-12-13 07:02:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:38,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:38,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:38,688 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:38,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 07:02:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:38,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 07:02:38,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 07:02:38,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:02:38,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026637377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:38,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:02:38,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-13 07:02:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001694790] [2022-12-13 07:02:38,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:38,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 07:02:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 07:02:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 07:02:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,768 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:38,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 07:02:38,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:38,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 07:02:39,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:39,002 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:39,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:39,002 INFO L85 PathProgramCache]: Analyzing trace with hash -255774381, now seen corresponding path program 1 times [2022-12-13 07:02:39,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:39,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195827424] [2022-12-13 07:02:39,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:39,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 07:02:39,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:39,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195827424] [2022-12-13 07:02:39,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195827424] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:39,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225712923] [2022-12-13 07:02:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:39,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:39,037 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:39,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 07:02:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:39,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 07:02:39,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 07:02:39,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 07:02:39,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225712923] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:39,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:39,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-12-13 07:02:39,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964448848] [2022-12-13 07:02:39,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:39,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:02:39,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:39,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:02:39,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:02:39,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:39,146 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:39,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 07:02:39,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:39,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:39,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:39,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 07:02:39,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:39,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:39,514 INFO L85 PathProgramCache]: Analyzing trace with hash 132631302, now seen corresponding path program 1 times [2022-12-13 07:02:39,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:39,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409878209] [2022-12-13 07:02:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:39,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 07:02:39,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:39,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409878209] [2022-12-13 07:02:39,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409878209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:39,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:39,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:39,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183420730] [2022-12-13 07:02:39,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:39,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:39,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:39,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:39,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:39,681 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:39,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 07:02:39,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:39,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:39,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:39,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:40,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 07:02:40,036 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 07:02:40,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:40,036 INFO L85 PathProgramCache]: Analyzing trace with hash -635724527, now seen corresponding path program 1 times [2022-12-13 07:02:40,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:40,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894890508] [2022-12-13 07:02:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:40,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:40,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:02:40,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:40,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894890508] [2022-12-13 07:02:40,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894890508] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:40,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585604739] [2022-12-13 07:02:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:40,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:40,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:40,068 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:40,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 07:02:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:40,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 07:02:40,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:02:40,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:40,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 07:02:40,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585604739] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:40,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:40,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-12-13 07:02:40,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615304383] [2022-12-13 07:02:40,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:40,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:02:40,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:02:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:02:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:40,159 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:40,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 07:02:40,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:40,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:40,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 07:02:40,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 07:02:40,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 07:02:40,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 07:02:40,863 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-13 07:02:40,863 INFO L307 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork1 was SAFE (3/3) [2022-12-13 07:02:40,863 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 07:02:40,864 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 07:02:40,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:02:40 BasicIcfg [2022-12-13 07:02:40,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 07:02:40,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 07:02:40,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 07:02:40,867 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 07:02:40,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:02:34" (3/4) ... [2022-12-13 07:02:40,869 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 07:02:40,873 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2022-12-13 07:02:40,873 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-12-13 07:02:40,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 07:02:40,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 07:02:40,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 07:02:40,876 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 07:02:40,894 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/witness.graphml [2022-12-13 07:02:40,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 07:02:40,894 INFO L158 Benchmark]: Toolchain (without parser) took 7288.17ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 78.9MB in the beginning and 83.2MB in the end (delta: -4.3MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2022-12-13 07:02:40,895 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 84.3MB in the beginning and 84.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 07:02:40,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.30ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 52.0MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 07:02:40,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.85ms. Allocated memory is still 113.2MB. Free memory was 52.0MB in the beginning and 50.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 07:02:40,895 INFO L158 Benchmark]: Boogie Preprocessor took 25.48ms. Allocated memory is still 113.2MB. Free memory was 50.2MB in the beginning and 48.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 07:02:40,895 INFO L158 Benchmark]: RCFGBuilder took 305.89ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 48.5MB in the beginning and 102.8MB in the end (delta: -54.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-12-13 07:02:40,895 INFO L158 Benchmark]: TraceAbstraction took 6496.40ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 102.0MB in the beginning and 86.2MB in the end (delta: 15.9MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2022-12-13 07:02:40,896 INFO L158 Benchmark]: Witness Printer took 27.60ms. Allocated memory is still 163.6MB. Free memory was 86.2MB in the beginning and 83.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 07:02:40,897 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 113.2MB. Free memory was 84.3MB in the beginning and 84.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.30ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 52.0MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.85ms. Allocated memory is still 113.2MB. Free memory was 52.0MB in the beginning and 50.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.48ms. Allocated memory is still 113.2MB. Free memory was 50.2MB in the beginning and 48.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.89ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 48.5MB in the beginning and 102.8MB in the end (delta: -54.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6496.40ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 102.0MB in the beginning and 86.2MB in the end (delta: 15.9MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. * Witness Printer took 27.60ms. Allocated memory is still 163.6MB. Free memory was 86.2MB in the beginning and 83.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 40815, independent: 29912, independent conditional: 26505, independent unconditional: 3407, dependent: 10903, dependent conditional: 10752, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31006, independent: 29912, independent conditional: 26505, independent unconditional: 3407, dependent: 1094, dependent conditional: 943, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 31006, independent: 29912, independent conditional: 26505, independent unconditional: 3407, dependent: 1094, dependent conditional: 943, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33866, independent: 29912, independent conditional: 0, independent unconditional: 29912, dependent: 3954, dependent conditional: 2860, dependent unconditional: 1094, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33866, independent: 29912, independent conditional: 0, independent unconditional: 29912, dependent: 3954, dependent conditional: 797, dependent unconditional: 3157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33866, independent: 29912, independent conditional: 0, independent unconditional: 29912, dependent: 3954, dependent conditional: 797, dependent unconditional: 3157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3537, independent: 3282, independent conditional: 0, independent unconditional: 3282, dependent: 255, dependent conditional: 104, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3537, independent: 3279, independent conditional: 0, independent unconditional: 3279, dependent: 258, dependent conditional: 0, dependent unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 258, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 255, dependent conditional: 104, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 258, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 255, dependent conditional: 104, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 322, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 296, dependent conditional: 127, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 33866, independent: 26630, independent conditional: 0, independent unconditional: 26630, dependent: 3699, dependent conditional: 693, dependent unconditional: 3006, unknown: 3537, unknown conditional: 104, unknown unconditional: 3433] , Statistics on independence cache: Total cache size (in pairs): 3537, Positive cache size: 3282, Positive conditional cache size: 0, Positive unconditional cache size: 3282, Negative cache size: 255, Negative conditional cache size: 104, Negative unconditional cache size: 151, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2063, Maximal queried relation: 5, Independence queries for same thread: 9809 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.4s, Number of persistent set computation: 2093, Number of trivial persistent sets: 1956, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3558, independent: 3407, independent conditional: 0, independent unconditional: 3407, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 40815, independent: 29912, independent conditional: 26505, independent unconditional: 3407, dependent: 10903, dependent conditional: 10752, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31006, independent: 29912, independent conditional: 26505, independent unconditional: 3407, dependent: 1094, dependent conditional: 943, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 31006, independent: 29912, independent conditional: 26505, independent unconditional: 3407, dependent: 1094, dependent conditional: 943, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33866, independent: 29912, independent conditional: 0, independent unconditional: 29912, dependent: 3954, dependent conditional: 2860, dependent unconditional: 1094, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33866, independent: 29912, independent conditional: 0, independent unconditional: 29912, dependent: 3954, dependent conditional: 797, dependent unconditional: 3157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33866, independent: 29912, independent conditional: 0, independent unconditional: 29912, dependent: 3954, dependent conditional: 797, dependent unconditional: 3157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3537, independent: 3282, independent conditional: 0, independent unconditional: 3282, dependent: 255, dependent conditional: 104, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3537, independent: 3279, independent conditional: 0, independent unconditional: 3279, dependent: 258, dependent conditional: 0, dependent unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 258, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 255, dependent conditional: 104, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 258, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 255, dependent conditional: 104, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 322, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 296, dependent conditional: 127, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 33866, independent: 26630, independent conditional: 0, independent unconditional: 26630, dependent: 3699, dependent conditional: 693, dependent unconditional: 3006, unknown: 3537, unknown conditional: 104, unknown unconditional: 3433] , Statistics on independence cache: Total cache size (in pairs): 3537, Positive cache size: 3282, Positive conditional cache size: 0, Positive unconditional cache size: 3282, Negative cache size: 255, Negative conditional cache size: 104, Negative unconditional cache size: 151, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2063, Maximal queried relation: 5, Independence queries for same thread: 9809 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 812, independent: 791, independent conditional: 33, independent unconditional: 758, dependent: 21, dependent conditional: 18, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 33, independent unconditional: 758, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 33, independent unconditional: 758, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 794, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 761, independent: 758, independent conditional: 0, independent unconditional: 758, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 761, independent: 757, independent conditional: 0, independent unconditional: 757, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 794, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 761, unknown conditional: 0, unknown unconditional: 761] , Statistics on independence cache: Total cache size (in pairs): 761, Positive cache size: 758, Positive conditional cache size: 0, Positive unconditional cache size: 758, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 45, Number of trivial persistent sets: 39, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 761, independent: 758, independent conditional: 0, independent unconditional: 758, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 812, independent: 791, independent conditional: 33, independent unconditional: 758, dependent: 21, dependent conditional: 18, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 33, independent unconditional: 758, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 33, independent unconditional: 758, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 794, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 794, independent: 791, independent conditional: 0, independent unconditional: 791, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 761, independent: 758, independent conditional: 0, independent unconditional: 758, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 761, independent: 757, independent conditional: 0, independent unconditional: 757, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 794, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 761, unknown conditional: 0, unknown unconditional: 761] , Statistics on independence cache: Total cache size (in pairs): 761, Positive cache size: 758, Positive conditional cache size: 0, Positive unconditional cache size: 758, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 38079, independent: 27862, independent conditional: 24398, independent unconditional: 3464, dependent: 10217, dependent conditional: 10064, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28873, independent: 27862, independent conditional: 24398, independent unconditional: 3464, dependent: 1011, dependent conditional: 858, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28873, independent: 27862, independent conditional: 24398, independent unconditional: 3464, dependent: 1011, dependent conditional: 858, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30801, independent: 27862, independent conditional: 0, independent unconditional: 27862, dependent: 2939, dependent conditional: 1928, dependent unconditional: 1011, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30801, independent: 27862, independent conditional: 0, independent unconditional: 27862, dependent: 2939, dependent conditional: 711, dependent unconditional: 2228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30801, independent: 27862, independent conditional: 0, independent unconditional: 27862, dependent: 2939, dependent conditional: 711, dependent unconditional: 2228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3581, independent: 3333, independent conditional: 0, independent unconditional: 3333, dependent: 248, dependent conditional: 95, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3581, independent: 3329, independent conditional: 0, independent unconditional: 3329, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 252, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 248, dependent conditional: 95, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 252, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 248, dependent conditional: 95, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 259, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 239, dependent conditional: 102, dependent unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 30801, independent: 24529, independent conditional: 0, independent unconditional: 24529, dependent: 2691, dependent conditional: 616, dependent unconditional: 2075, unknown: 3581, unknown conditional: 95, unknown unconditional: 3486] , Statistics on independence cache: Total cache size (in pairs): 3581, Positive cache size: 3333, Positive conditional cache size: 0, Positive unconditional cache size: 3333, Negative cache size: 248, Negative conditional cache size: 95, Negative unconditional cache size: 153, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1217, Maximal queried relation: 4, Independence queries for same thread: 9206 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 1961, Number of trivial persistent sets: 1839, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3617, independent: 3464, independent conditional: 0, independent unconditional: 3464, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 38079, independent: 27862, independent conditional: 24398, independent unconditional: 3464, dependent: 10217, dependent conditional: 10064, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28873, independent: 27862, independent conditional: 24398, independent unconditional: 3464, dependent: 1011, dependent conditional: 858, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28873, independent: 27862, independent conditional: 24398, independent unconditional: 3464, dependent: 1011, dependent conditional: 858, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30801, independent: 27862, independent conditional: 0, independent unconditional: 27862, dependent: 2939, dependent conditional: 1928, dependent unconditional: 1011, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30801, independent: 27862, independent conditional: 0, independent unconditional: 27862, dependent: 2939, dependent conditional: 711, dependent unconditional: 2228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30801, independent: 27862, independent conditional: 0, independent unconditional: 27862, dependent: 2939, dependent conditional: 711, dependent unconditional: 2228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3581, independent: 3333, independent conditional: 0, independent unconditional: 3333, dependent: 248, dependent conditional: 95, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3581, independent: 3329, independent conditional: 0, independent unconditional: 3329, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 252, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 248, dependent conditional: 95, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 252, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 248, dependent conditional: 95, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 259, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 239, dependent conditional: 102, dependent unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 30801, independent: 24529, independent conditional: 0, independent unconditional: 24529, dependent: 2691, dependent conditional: 616, dependent unconditional: 2075, unknown: 3581, unknown conditional: 95, unknown unconditional: 3486] , Statistics on independence cache: Total cache size (in pairs): 3581, Positive cache size: 3333, Positive conditional cache size: 0, Positive unconditional cache size: 3333, Negative cache size: 248, Negative conditional cache size: 95, Negative unconditional cache size: 153, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1217, Maximal queried relation: 4, Independence queries for same thread: 9206 - PositiveResult [Line: 745]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 45, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 711 NumberOfCodeBlocks, 711 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 827 ConstructedInterpolants, 0 QuantifiedInterpolants, 1083 SizeOfPredicates, 2 NumberOfNonLiveVariables, 491 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 160/173 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 43, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 740 NumberOfCodeBlocks, 740 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 860 ConstructedInterpolants, 0 QuantifiedInterpolants, 1120 SizeOfPredicates, 2 NumberOfNonLiveVariables, 481 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 161/174 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 07:02:40,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Forceful destruction successful, exit code 0 [2022-12-13 07:02:41,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Ended with exit code 0 [2022-12-13 07:02:41,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-12-13 07:02:41,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ff8abf-c3c0-4789-a624-03dbe3df4c98/bin/ugemcutter-rbreBovr8w/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: TRUE