./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:02:24,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:02:24,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:02:24,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:02:24,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:02:24,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:02:24,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:02:24,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:02:24,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:02:24,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:02:24,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:02:24,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:02:24,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:02:24,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:02:24,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:02:24,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:02:24,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:02:24,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:02:24,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:02:24,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:02:24,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:02:24,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:02:24,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:02:24,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:02:24,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:02:24,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:02:24,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:02:24,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:02:24,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:02:24,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:02:24,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:02:24,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:02:24,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:02:24,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:02:24,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:02:24,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:02:24,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:02:24,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:02:24,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:02:24,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:02:24,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:02:24,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:02:24,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:02:24,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:02:24,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:02:24,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:02:24,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:02:24,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:02:24,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:02:24,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:02:24,191 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:02:24,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:02:24,192 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:02:24,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:02:24,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:02:24,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:02:24,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:02:24,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:02:24,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:02:24,194 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:02:24,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:02:24,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:02:24,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:02:24,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:02:24,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:02:24,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:02:24,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:02:24,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:02:24,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:02:24,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:02:24,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:02:24,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:02:24,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:02:24,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:02:24,198 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:02:24,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:02:24,198 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a86612b573a63cde2c4106f45bf8b3ea66989a894eb80420a80ff8b17f8f03d1 [2022-11-25 18:02:24,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:02:24,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:02:24,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:02:24,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:02:24,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:02:24,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2022-11-25 18:02:27,806 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:02:28,205 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:02:28,206 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i [2022-11-25 18:02:28,222 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/data/bc460e691/ba9652166e9f47da8ff428a8858cc89c/FLAG34a8378cc [2022-11-25 18:02:28,239 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/data/bc460e691/ba9652166e9f47da8ff428a8858cc89c [2022-11-25 18:02:28,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:02:28,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:02:28,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:02:28,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:02:28,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:02:28,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:02:28" (1/1) ... [2022-11-25 18:02:28,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4004d1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:28, skipping insertion in model container [2022-11-25 18:02:28,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:02:28" (1/1) ... [2022-11-25 18:02:28,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:02:28,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:02:28,484 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_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-25 18:02:28,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:02:28,833 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:02:28,859 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_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/sv-benchmarks/c/pthread-wmm/mix028_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-25 18:02:28,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:02:28,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:02:28,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:02:29,002 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:02:29,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29 WrapperNode [2022-11-25 18:02:29,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:02:29,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:02:29,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:02:29,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:02:29,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,092 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2022-11-25 18:02:29,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:02:29,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:02:29,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:02:29,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:02:29,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:02:29,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:02:29,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:02:29,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:02:29,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (1/1) ... [2022-11-25 18:02:29,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:02:29,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:02:29,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:02:29,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:02:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:02:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:02:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:02:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:02:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:02:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 18:02:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 18:02:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 18:02:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 18:02:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 18:02:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 18:02:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:02:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:02:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:02:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:02:29,251 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:02:29,490 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:02:29,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:02:29,873 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:02:30,088 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:02:30,089 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:02:30,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:02:30 BoogieIcfgContainer [2022-11-25 18:02:30,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:02:30,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:02:30,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:02:30,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:02:30,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:02:28" (1/3) ... [2022-11-25 18:02:30,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cb432e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:02:30, skipping insertion in model container [2022-11-25 18:02:30,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:29" (2/3) ... [2022-11-25 18:02:30,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cb432e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:02:30, skipping insertion in model container [2022-11-25 18:02:30,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:02:30" (3/3) ... [2022-11-25 18:02:30,101 INFO L112 eAbstractionObserver]: Analyzing ICFG mix028_power.opt_pso.opt_rmo.opt.i [2022-11-25 18:02:30,111 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:02:30,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:02:30,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 18:02:30,178 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:02:30,291 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:02:30,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2022-11-25 18:02:30,404 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-11-25 18:02:30,405 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:02:30,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-11-25 18:02:30,410 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow [2022-11-25 18:02:30,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow [2022-11-25 18:02:30,418 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:02:30,433 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 235 flow [2022-11-25 18:02:30,436 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 235 flow [2022-11-25 18:02:30,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 235 flow [2022-11-25 18:02:30,468 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-11-25 18:02:30,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:02:30,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-11-25 18:02:30,471 INFO L119 LiptonReduction]: Number of co-enabled transitions 2178 [2022-11-25 18:02:35,718 INFO L134 LiptonReduction]: Checked pairs total: 5842 [2022-11-25 18:02:35,718 INFO L136 LiptonReduction]: Total number of compositions: 101 [2022-11-25 18:02:35,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:02:35,743 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=PETRI_NET, 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;@29a202b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:02:35,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 18:02:35,748 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-11-25 18:02:35,748 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:02:35,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:35,749 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:02:35,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash 475970213, now seen corresponding path program 1 times [2022-11-25 18:02:35,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:35,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807722953] [2022-11-25 18:02:35,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:36,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:36,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807722953] [2022-11-25 18:02:36,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807722953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:36,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:36,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:02:36,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994636087] [2022-11-25 18:02:36,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:36,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:36,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:36,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:36,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:36,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 217 [2022-11-25 18:02:36,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:36,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:36,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 217 [2022-11-25 18:02:36,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:36,788 INFO L130 PetriNetUnfolder]: 855/1402 cut-off events. [2022-11-25 18:02:36,788 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-25 18:02:36,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2729 conditions, 1402 events. 855/1402 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7352 event pairs, 141 based on Foata normal form. 0/1325 useless extension candidates. Maximal degree in co-relation 2718. Up to 1027 conditions per place. [2022-11-25 18:02:36,803 INFO L137 encePairwiseOnDemand]: 213/217 looper letters, 29 selfloop transitions, 2 changer transitions 2/37 dead transitions. [2022-11-25 18:02:36,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 152 flow [2022-11-25 18:02:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:36,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:02:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-11-25 18:02:36,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5253456221198156 [2022-11-25 18:02:36,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-11-25 18:02:36,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-11-25 18:02:36,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:36,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-11-25 18:02:36,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:36,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:36,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:36,864 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 342 transitions. [2022-11-25 18:02:36,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 152 flow [2022-11-25 18:02:36,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:02:36,870 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 56 flow [2022-11-25 18:02:36,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2022-11-25 18:02:36,879 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2022-11-25 18:02:36,879 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 56 flow [2022-11-25 18:02:36,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:36,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:36,880 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:36,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:02:36,881 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:36,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:36,883 INFO L85 PathProgramCache]: Analyzing trace with hash -189674215, now seen corresponding path program 1 times [2022-11-25 18:02:36,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:36,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741118432] [2022-11-25 18:02:36,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:36,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:37,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:37,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741118432] [2022-11-25 18:02:37,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741118432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:37,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:37,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:02:37,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385979818] [2022-11-25 18:02:37,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:37,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:02:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:02:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:02:37,787 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 217 [2022-11-25 18:02:37,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:37,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:37,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 217 [2022-11-25 18:02:37,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:38,565 INFO L130 PetriNetUnfolder]: 1589/2376 cut-off events. [2022-11-25 18:02:38,566 INFO L131 PetriNetUnfolder]: For 133/133 co-relation queries the response was YES. [2022-11-25 18:02:38,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4940 conditions, 2376 events. 1589/2376 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10869 event pairs, 395 based on Foata normal form. 136/2511 useless extension candidates. Maximal degree in co-relation 4930. Up to 1377 conditions per place. [2022-11-25 18:02:38,580 INFO L137 encePairwiseOnDemand]: 207/217 looper letters, 33 selfloop transitions, 8 changer transitions 28/70 dead transitions. [2022-11-25 18:02:38,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 70 transitions, 294 flow [2022-11-25 18:02:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:02:38,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:02:38,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 709 transitions. [2022-11-25 18:02:38,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46675444371296904 [2022-11-25 18:02:38,586 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 709 transitions. [2022-11-25 18:02:38,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 709 transitions. [2022-11-25 18:02:38,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:38,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 709 transitions. [2022-11-25 18:02:38,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 101.28571428571429) internal successors, (709), 7 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:38,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:38,595 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:38,596 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 56 flow. Second operand 7 states and 709 transitions. [2022-11-25 18:02:38,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 70 transitions, 294 flow [2022-11-25 18:02:38,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 70 transitions, 284 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:02:38,601 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 128 flow [2022-11-25 18:02:38,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2022-11-25 18:02:38,602 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2022-11-25 18:02:38,603 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 128 flow [2022-11-25 18:02:38,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:38,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:38,604 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:38,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:02:38,605 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:38,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1905811413, now seen corresponding path program 1 times [2022-11-25 18:02:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:38,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858940932] [2022-11-25 18:02:38,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:38,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:39,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:39,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858940932] [2022-11-25 18:02:39,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858940932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:39,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:39,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:02:39,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663348920] [2022-11-25 18:02:39,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:39,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:02:39,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:02:39,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:02:39,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 217 [2022-11-25 18:02:39,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 92.0) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:39,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:39,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 217 [2022-11-25 18:02:39,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:40,614 INFO L130 PetriNetUnfolder]: 1939/2892 cut-off events. [2022-11-25 18:02:40,616 INFO L131 PetriNetUnfolder]: For 2729/2729 co-relation queries the response was YES. [2022-11-25 18:02:40,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 2892 events. 1939/2892 cut-off events. For 2729/2729 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 13085 event pairs, 435 based on Foata normal form. 124/3016 useless extension candidates. Maximal degree in co-relation 8820. Up to 2036 conditions per place. [2022-11-25 18:02:40,636 INFO L137 encePairwiseOnDemand]: 204/217 looper letters, 48 selfloop transitions, 21 changer transitions 37/106 dead transitions. [2022-11-25 18:02:40,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 106 transitions, 672 flow [2022-11-25 18:02:40,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:02:40,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:02:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 720 transitions. [2022-11-25 18:02:40,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4739960500329164 [2022-11-25 18:02:40,640 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 720 transitions. [2022-11-25 18:02:40,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 720 transitions. [2022-11-25 18:02:40,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:40,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 720 transitions. [2022-11-25 18:02:40,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.85714285714286) internal successors, (720), 7 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:40,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:40,646 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:40,647 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 128 flow. Second operand 7 states and 720 transitions. [2022-11-25 18:02:40,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 106 transitions, 672 flow [2022-11-25 18:02:40,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 106 transitions, 660 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-25 18:02:40,667 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 341 flow [2022-11-25 18:02:40,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=341, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2022-11-25 18:02:40,669 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2022-11-25 18:02:40,669 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 341 flow [2022-11-25 18:02:40,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.0) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:40,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:40,670 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:40,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:02:40,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:40,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1394272263, now seen corresponding path program 1 times [2022-11-25 18:02:40,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:40,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684652044] [2022-11-25 18:02:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:40,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:41,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:41,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684652044] [2022-11-25 18:02:41,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684652044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:41,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:41,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:02:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354105492] [2022-11-25 18:02:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:41,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:02:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:41,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:02:41,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:02:41,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 217 [2022-11-25 18:02:41,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 341 flow. Second operand has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:41,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:41,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 217 [2022-11-25 18:02:41,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:42,137 INFO L130 PetriNetUnfolder]: 1729/2644 cut-off events. [2022-11-25 18:02:42,138 INFO L131 PetriNetUnfolder]: For 7063/7281 co-relation queries the response was YES. [2022-11-25 18:02:42,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11170 conditions, 2644 events. 1729/2644 cut-off events. For 7063/7281 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 12808 event pairs, 892 based on Foata normal form. 201/2756 useless extension candidates. Maximal degree in co-relation 11148. Up to 1841 conditions per place. [2022-11-25 18:02:42,167 INFO L137 encePairwiseOnDemand]: 210/217 looper letters, 45 selfloop transitions, 12 changer transitions 20/87 dead transitions. [2022-11-25 18:02:42,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 87 transitions, 773 flow [2022-11-25 18:02:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:02:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:02:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 650 transitions. [2022-11-25 18:02:42,171 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49923195084485406 [2022-11-25 18:02:42,171 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 650 transitions. [2022-11-25 18:02:42,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 650 transitions. [2022-11-25 18:02:42,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:42,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 650 transitions. [2022-11-25 18:02:42,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:42,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:42,178 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:42,179 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 341 flow. Second operand 6 states and 650 transitions. [2022-11-25 18:02:42,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 87 transitions, 773 flow [2022-11-25 18:02:42,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 87 transitions, 765 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-11-25 18:02:42,194 INFO L231 Difference]: Finished difference. Result has 53 places, 53 transitions, 468 flow [2022-11-25 18:02:42,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=468, PETRI_PLACES=53, PETRI_TRANSITIONS=53} [2022-11-25 18:02:42,196 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2022-11-25 18:02:42,196 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 53 transitions, 468 flow [2022-11-25 18:02:42,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:42,197 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:42,197 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:42,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:02:42,197 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1830396084, now seen corresponding path program 1 times [2022-11-25 18:02:42,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:42,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626346167] [2022-11-25 18:02:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:42,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:43,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:43,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626346167] [2022-11-25 18:02:43,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626346167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:43,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:43,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:02:43,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289838566] [2022-11-25 18:02:43,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:43,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:02:43,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:43,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:02:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:02:43,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 217 [2022-11-25 18:02:43,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 468 flow. Second operand has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:43,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:43,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 217 [2022-11-25 18:02:43,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:44,149 INFO L130 PetriNetUnfolder]: 2087/3106 cut-off events. [2022-11-25 18:02:44,150 INFO L131 PetriNetUnfolder]: For 11021/11021 co-relation queries the response was YES. [2022-11-25 18:02:44,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14557 conditions, 3106 events. 2087/3106 cut-off events. For 11021/11021 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 14040 event pairs, 513 based on Foata normal form. 60/3166 useless extension candidates. Maximal degree in co-relation 14531. Up to 2375 conditions per place. [2022-11-25 18:02:44,183 INFO L137 encePairwiseOnDemand]: 204/217 looper letters, 60 selfloop transitions, 37 changer transitions 26/123 dead transitions. [2022-11-25 18:02:44,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 123 transitions, 1206 flow [2022-11-25 18:02:44,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:02:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:02:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 712 transitions. [2022-11-25 18:02:44,187 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4687294272547729 [2022-11-25 18:02:44,187 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 712 transitions. [2022-11-25 18:02:44,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 712 transitions. [2022-11-25 18:02:44,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:44,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 712 transitions. [2022-11-25 18:02:44,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 101.71428571428571) internal successors, (712), 7 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:44,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:44,196 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:44,196 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 468 flow. Second operand 7 states and 712 transitions. [2022-11-25 18:02:44,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 123 transitions, 1206 flow [2022-11-25 18:02:44,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 123 transitions, 1170 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-25 18:02:44,223 INFO L231 Difference]: Finished difference. Result has 59 places, 74 transitions, 835 flow [2022-11-25 18:02:44,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=835, PETRI_PLACES=59, PETRI_TRANSITIONS=74} [2022-11-25 18:02:44,226 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 24 predicate places. [2022-11-25 18:02:44,226 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 74 transitions, 835 flow [2022-11-25 18:02:44,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:44,228 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:44,229 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:44,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:02:44,229 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:44,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:44,230 INFO L85 PathProgramCache]: Analyzing trace with hash -259428697, now seen corresponding path program 1 times [2022-11-25 18:02:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:44,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335516503] [2022-11-25 18:02:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:45,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:45,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335516503] [2022-11-25 18:02:45,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335516503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:45,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:45,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:02:45,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54404989] [2022-11-25 18:02:45,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:45,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:02:45,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:45,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:02:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:02:45,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 217 [2022-11-25 18:02:45,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 74 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 102.33333333333333) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:45,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:45,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 217 [2022-11-25 18:02:45,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:45,838 INFO L130 PetriNetUnfolder]: 1807/2774 cut-off events. [2022-11-25 18:02:45,838 INFO L131 PetriNetUnfolder]: For 18053/18438 co-relation queries the response was YES. [2022-11-25 18:02:45,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15652 conditions, 2774 events. 1807/2774 cut-off events. For 18053/18438 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 13624 event pairs, 333 based on Foata normal form. 164/2850 useless extension candidates. Maximal degree in co-relation 15622. Up to 2013 conditions per place. [2022-11-25 18:02:45,869 INFO L137 encePairwiseOnDemand]: 210/217 looper letters, 77 selfloop transitions, 14 changer transitions 15/123 dead transitions. [2022-11-25 18:02:45,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 123 transitions, 1447 flow [2022-11-25 18:02:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:02:45,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:02:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 761 transitions. [2022-11-25 18:02:45,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.500987491770902 [2022-11-25 18:02:45,873 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 761 transitions. [2022-11-25 18:02:45,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 761 transitions. [2022-11-25 18:02:45,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:45,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 761 transitions. [2022-11-25 18:02:45,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:45,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:45,879 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:45,880 INFO L175 Difference]: Start difference. First operand has 59 places, 74 transitions, 835 flow. Second operand 7 states and 761 transitions. [2022-11-25 18:02:45,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 123 transitions, 1447 flow [2022-11-25 18:02:45,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 123 transitions, 1425 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-11-25 18:02:45,920 INFO L231 Difference]: Finished difference. Result has 64 places, 81 transitions, 960 flow [2022-11-25 18:02:45,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=960, PETRI_PLACES=64, PETRI_TRANSITIONS=81} [2022-11-25 18:02:45,921 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 29 predicate places. [2022-11-25 18:02:45,921 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 81 transitions, 960 flow [2022-11-25 18:02:45,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.33333333333333) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:45,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:45,922 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:45,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:02:45,922 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:45,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:45,923 INFO L85 PathProgramCache]: Analyzing trace with hash -477010553, now seen corresponding path program 2 times [2022-11-25 18:02:45,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:45,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849968174] [2022-11-25 18:02:45,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:45,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:46,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:46,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849968174] [2022-11-25 18:02:46,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849968174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:46,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:46,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:02:46,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826950221] [2022-11-25 18:02:46,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:46,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:02:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:46,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:02:46,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:02:46,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 217 [2022-11-25 18:02:46,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 81 transitions, 960 flow. Second operand has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:46,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:46,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 217 [2022-11-25 18:02:46,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:47,754 INFO L130 PetriNetUnfolder]: 2052/3155 cut-off events. [2022-11-25 18:02:47,754 INFO L131 PetriNetUnfolder]: For 22069/22466 co-relation queries the response was YES. [2022-11-25 18:02:47,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18853 conditions, 3155 events. 2052/3155 cut-off events. For 22069/22466 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 16048 event pairs, 340 based on Foata normal form. 178/3216 useless extension candidates. Maximal degree in co-relation 18819. Up to 2084 conditions per place. [2022-11-25 18:02:47,800 INFO L137 encePairwiseOnDemand]: 209/217 looper letters, 87 selfloop transitions, 27 changer transitions 21/152 dead transitions. [2022-11-25 18:02:47,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 152 transitions, 1900 flow [2022-11-25 18:02:47,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:02:47,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 18:02:47,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 968 transitions. [2022-11-25 18:02:47,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4956477214541731 [2022-11-25 18:02:47,805 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 968 transitions. [2022-11-25 18:02:47,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 968 transitions. [2022-11-25 18:02:47,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:47,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 968 transitions. [2022-11-25 18:02:47,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 107.55555555555556) internal successors, (968), 9 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:47,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 217.0) internal successors, (2170), 10 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:47,817 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 217.0) internal successors, (2170), 10 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:47,817 INFO L175 Difference]: Start difference. First operand has 64 places, 81 transitions, 960 flow. Second operand 9 states and 968 transitions. [2022-11-25 18:02:47,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 152 transitions, 1900 flow [2022-11-25 18:02:47,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 152 transitions, 1863 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-11-25 18:02:47,879 INFO L231 Difference]: Finished difference. Result has 70 places, 97 transitions, 1297 flow [2022-11-25 18:02:47,880 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1297, PETRI_PLACES=70, PETRI_TRANSITIONS=97} [2022-11-25 18:02:47,881 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 35 predicate places. [2022-11-25 18:02:47,882 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 97 transitions, 1297 flow [2022-11-25 18:02:47,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:47,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:47,883 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:47,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:02:47,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:47,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:47,884 INFO L85 PathProgramCache]: Analyzing trace with hash -613374093, now seen corresponding path program 1 times [2022-11-25 18:02:47,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:47,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708488662] [2022-11-25 18:02:47,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:47,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:48,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:48,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708488662] [2022-11-25 18:02:48,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708488662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:48,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:48,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:02:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477865128] [2022-11-25 18:02:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:48,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:02:48,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:48,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:02:48,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:02:48,346 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 217 [2022-11-25 18:02:48,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 97 transitions, 1297 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:48,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:48,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 217 [2022-11-25 18:02:48,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:49,379 INFO L130 PetriNetUnfolder]: 2910/4379 cut-off events. [2022-11-25 18:02:49,380 INFO L131 PetriNetUnfolder]: For 32973/33167 co-relation queries the response was YES. [2022-11-25 18:02:49,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26632 conditions, 4379 events. 2910/4379 cut-off events. For 32973/33167 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 22353 event pairs, 514 based on Foata normal form. 183/4539 useless extension candidates. Maximal degree in co-relation 26595. Up to 2194 conditions per place. [2022-11-25 18:02:49,423 INFO L137 encePairwiseOnDemand]: 209/217 looper letters, 104 selfloop transitions, 16 changer transitions 37/161 dead transitions. [2022-11-25 18:02:49,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 161 transitions, 2274 flow [2022-11-25 18:02:49,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:02:49,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:02:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2022-11-25 18:02:49,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.471889400921659 [2022-11-25 18:02:49,427 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 512 transitions. [2022-11-25 18:02:49,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 512 transitions. [2022-11-25 18:02:49,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:49,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 512 transitions. [2022-11-25 18:02:49,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:49,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:49,434 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:49,434 INFO L175 Difference]: Start difference. First operand has 70 places, 97 transitions, 1297 flow. Second operand 5 states and 512 transitions. [2022-11-25 18:02:49,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 161 transitions, 2274 flow [2022-11-25 18:02:49,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 161 transitions, 2234 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-11-25 18:02:49,554 INFO L231 Difference]: Finished difference. Result has 69 places, 94 transitions, 1248 flow [2022-11-25 18:02:49,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=1273, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1248, PETRI_PLACES=69, PETRI_TRANSITIONS=94} [2022-11-25 18:02:49,558 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 34 predicate places. [2022-11-25 18:02:49,558 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 94 transitions, 1248 flow [2022-11-25 18:02:49,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:49,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:49,560 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:49,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:02:49,561 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:49,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1232029363, now seen corresponding path program 2 times [2022-11-25 18:02:49,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:49,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766831332] [2022-11-25 18:02:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:49,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:49,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:49,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:49,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766831332] [2022-11-25 18:02:49,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766831332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:49,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:49,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:02:49,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534499294] [2022-11-25 18:02:49,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:49,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:02:49,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:49,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:02:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:02:49,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 217 [2022-11-25 18:02:49,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 94 transitions, 1248 flow. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:49,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:49,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 217 [2022-11-25 18:02:49,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:50,484 INFO L130 PetriNetUnfolder]: 1598/2635 cut-off events. [2022-11-25 18:02:50,484 INFO L131 PetriNetUnfolder]: For 31132/31931 co-relation queries the response was YES. [2022-11-25 18:02:50,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16172 conditions, 2635 events. 1598/2635 cut-off events. For 31132/31931 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 15217 event pairs, 289 based on Foata normal form. 755/3304 useless extension candidates. Maximal degree in co-relation 16134. Up to 1321 conditions per place. [2022-11-25 18:02:50,509 INFO L137 encePairwiseOnDemand]: 211/217 looper letters, 136 selfloop transitions, 7 changer transitions 44/204 dead transitions. [2022-11-25 18:02:50,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 204 transitions, 3089 flow [2022-11-25 18:02:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:02:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:02:50,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2022-11-25 18:02:50,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48663594470046084 [2022-11-25 18:02:50,512 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2022-11-25 18:02:50,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2022-11-25 18:02:50,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:50,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2022-11-25 18:02:50,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:50,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:50,518 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:50,518 INFO L175 Difference]: Start difference. First operand has 69 places, 94 transitions, 1248 flow. Second operand 5 states and 528 transitions. [2022-11-25 18:02:50,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 204 transitions, 3089 flow [2022-11-25 18:02:50,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 204 transitions, 3071 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-25 18:02:50,566 INFO L231 Difference]: Finished difference. Result has 74 places, 93 transitions, 1214 flow [2022-11-25 18:02:50,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1214, PETRI_PLACES=74, PETRI_TRANSITIONS=93} [2022-11-25 18:02:50,568 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 39 predicate places. [2022-11-25 18:02:50,568 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 93 transitions, 1214 flow [2022-11-25 18:02:50,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:50,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:50,571 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:50,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:02:50,573 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:50,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1324741231, now seen corresponding path program 1 times [2022-11-25 18:02:50,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:50,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671966795] [2022-11-25 18:02:50,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:50,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:50,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:50,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:50,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671966795] [2022-11-25 18:02:50,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671966795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:50,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:50,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:02:50,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354407004] [2022-11-25 18:02:50,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:50,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:02:50,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:50,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:02:50,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:02:50,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 217 [2022-11-25 18:02:50,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 93 transitions, 1214 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:50,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:50,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 217 [2022-11-25 18:02:50,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:51,626 INFO L130 PetriNetUnfolder]: 1107/1870 cut-off events. [2022-11-25 18:02:51,626 INFO L131 PetriNetUnfolder]: For 23490/24227 co-relation queries the response was YES. [2022-11-25 18:02:51,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12194 conditions, 1870 events. 1107/1870 cut-off events. For 23490/24227 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 10593 event pairs, 91 based on Foata normal form. 502/2315 useless extension candidates. Maximal degree in co-relation 12152. Up to 873 conditions per place. [2022-11-25 18:02:51,649 INFO L137 encePairwiseOnDemand]: 211/217 looper letters, 134 selfloop transitions, 13 changer transitions 63/226 dead transitions. [2022-11-25 18:02:51,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 226 transitions, 3395 flow [2022-11-25 18:02:51,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:02:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:02:51,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 738 transitions. [2022-11-25 18:02:51,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4858459512837393 [2022-11-25 18:02:51,654 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 738 transitions. [2022-11-25 18:02:51,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 738 transitions. [2022-11-25 18:02:51,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:51,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 738 transitions. [2022-11-25 18:02:51,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 105.42857142857143) internal successors, (738), 7 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:51,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:51,663 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:51,663 INFO L175 Difference]: Start difference. First operand has 74 places, 93 transitions, 1214 flow. Second operand 7 states and 738 transitions. [2022-11-25 18:02:51,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 226 transitions, 3395 flow [2022-11-25 18:02:51,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 226 transitions, 3391 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:02:51,718 INFO L231 Difference]: Finished difference. Result has 82 places, 88 transitions, 1116 flow [2022-11-25 18:02:51,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1116, PETRI_PLACES=82, PETRI_TRANSITIONS=88} [2022-11-25 18:02:51,719 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 47 predicate places. [2022-11-25 18:02:51,719 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 88 transitions, 1116 flow [2022-11-25 18:02:51,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:51,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:51,720 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:51,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:02:51,721 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:51,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash 989593783, now seen corresponding path program 1 times [2022-11-25 18:02:51,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:51,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097681126] [2022-11-25 18:02:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:51,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:52,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097681126] [2022-11-25 18:02:52,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097681126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:52,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:52,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:02:52,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879884626] [2022-11-25 18:02:52,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:52,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:02:52,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:52,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:02:52,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:02:52,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 217 [2022-11-25 18:02:52,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 88 transitions, 1116 flow. Second operand has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:52,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:52,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 217 [2022-11-25 18:02:52,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:53,266 INFO L130 PetriNetUnfolder]: 1425/2451 cut-off events. [2022-11-25 18:02:53,266 INFO L131 PetriNetUnfolder]: For 22489/22600 co-relation queries the response was YES. [2022-11-25 18:02:53,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16308 conditions, 2451 events. 1425/2451 cut-off events. For 22489/22600 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 13980 event pairs, 193 based on Foata normal form. 70/2513 useless extension candidates. Maximal degree in co-relation 16262. Up to 1806 conditions per place. [2022-11-25 18:02:53,286 INFO L137 encePairwiseOnDemand]: 204/217 looper letters, 103 selfloop transitions, 44 changer transitions 35/186 dead transitions. [2022-11-25 18:02:53,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 186 transitions, 2553 flow [2022-11-25 18:02:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:02:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 18:02:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1056 transitions. [2022-11-25 18:02:53,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4423963133640553 [2022-11-25 18:02:53,292 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1056 transitions. [2022-11-25 18:02:53,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1056 transitions. [2022-11-25 18:02:53,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:53,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1056 transitions. [2022-11-25 18:02:53,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 96.0) internal successors, (1056), 11 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:53,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 217.0) internal successors, (2604), 12 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:53,304 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 217.0) internal successors, (2604), 12 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:53,304 INFO L175 Difference]: Start difference. First operand has 82 places, 88 transitions, 1116 flow. Second operand 11 states and 1056 transitions. [2022-11-25 18:02:53,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 186 transitions, 2553 flow [2022-11-25 18:02:53,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 186 transitions, 2405 flow, removed 37 selfloop flow, removed 5 redundant places. [2022-11-25 18:02:53,453 INFO L231 Difference]: Finished difference. Result has 95 places, 102 transitions, 1464 flow [2022-11-25 18:02:53,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=1057, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1464, PETRI_PLACES=95, PETRI_TRANSITIONS=102} [2022-11-25 18:02:53,455 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 60 predicate places. [2022-11-25 18:02:53,455 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 102 transitions, 1464 flow [2022-11-25 18:02:53,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:53,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:53,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:53,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:02:53,456 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:53,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:53,457 INFO L85 PathProgramCache]: Analyzing trace with hash -939511943, now seen corresponding path program 2 times [2022-11-25 18:02:53,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:53,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979646653] [2022-11-25 18:02:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:53,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:54,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:54,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979646653] [2022-11-25 18:02:54,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979646653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:54,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:54,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:02:54,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035335447] [2022-11-25 18:02:54,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:54,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:02:54,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:54,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:02:54,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:02:54,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 217 [2022-11-25 18:02:54,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 102 transitions, 1464 flow. Second operand has 8 states, 8 states have (on average 91.375) internal successors, (731), 8 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:54,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:54,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 217 [2022-11-25 18:02:54,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:55,231 INFO L130 PetriNetUnfolder]: 667/1252 cut-off events. [2022-11-25 18:02:55,231 INFO L131 PetriNetUnfolder]: For 12248/12248 co-relation queries the response was YES. [2022-11-25 18:02:55,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8847 conditions, 1252 events. 667/1252 cut-off events. For 12248/12248 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6363 event pairs, 120 based on Foata normal form. 8/1260 useless extension candidates. Maximal degree in co-relation 8794. Up to 825 conditions per place. [2022-11-25 18:02:55,245 INFO L137 encePairwiseOnDemand]: 208/217 looper letters, 96 selfloop transitions, 42 changer transitions 27/165 dead transitions. [2022-11-25 18:02:55,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 165 transitions, 2497 flow [2022-11-25 18:02:55,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:02:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 18:02:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 973 transitions. [2022-11-25 18:02:55,250 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4483870967741935 [2022-11-25 18:02:55,250 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 973 transitions. [2022-11-25 18:02:55,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 973 transitions. [2022-11-25 18:02:55,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:55,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 973 transitions. [2022-11-25 18:02:55,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 97.3) internal successors, (973), 10 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 217.0) internal successors, (2387), 11 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,258 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 217.0) internal successors, (2387), 11 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,258 INFO L175 Difference]: Start difference. First operand has 95 places, 102 transitions, 1464 flow. Second operand 10 states and 973 transitions. [2022-11-25 18:02:55,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 165 transitions, 2497 flow [2022-11-25 18:02:55,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 165 transitions, 2421 flow, removed 34 selfloop flow, removed 7 redundant places. [2022-11-25 18:02:55,323 INFO L231 Difference]: Finished difference. Result has 97 places, 106 transitions, 1675 flow [2022-11-25 18:02:55,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=1412, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1675, PETRI_PLACES=97, PETRI_TRANSITIONS=106} [2022-11-25 18:02:55,324 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 62 predicate places. [2022-11-25 18:02:55,325 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 106 transitions, 1675 flow [2022-11-25 18:02:55,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 91.375) internal successors, (731), 8 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:55,325 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:55,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:02:55,326 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:55,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash -721951950, now seen corresponding path program 1 times [2022-11-25 18:02:55,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:55,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664138072] [2022-11-25 18:02:55,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:55,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:55,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:55,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664138072] [2022-11-25 18:02:55,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664138072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:55,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:55,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:02:55,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432893195] [2022-11-25 18:02:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:55,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:02:55,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:55,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:02:55,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:02:55,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 217 [2022-11-25 18:02:55,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 106 transitions, 1675 flow. Second operand has 6 states, 6 states have (on average 97.66666666666667) internal successors, (586), 6 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:55,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 217 [2022-11-25 18:02:55,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:55,908 INFO L130 PetriNetUnfolder]: 419/828 cut-off events. [2022-11-25 18:02:55,908 INFO L131 PetriNetUnfolder]: For 11509/11613 co-relation queries the response was YES. [2022-11-25 18:02:55,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6199 conditions, 828 events. 419/828 cut-off events. For 11509/11613 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4377 event pairs, 38 based on Foata normal form. 59/875 useless extension candidates. Maximal degree in co-relation 6151. Up to 347 conditions per place. [2022-11-25 18:02:55,914 INFO L137 encePairwiseOnDemand]: 211/217 looper letters, 76 selfloop transitions, 11 changer transitions 76/173 dead transitions. [2022-11-25 18:02:55,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 173 transitions, 3027 flow [2022-11-25 18:02:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:02:55,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:02:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 720 transitions. [2022-11-25 18:02:55,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4739960500329164 [2022-11-25 18:02:55,918 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 720 transitions. [2022-11-25 18:02:55,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 720 transitions. [2022-11-25 18:02:55,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:55,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 720 transitions. [2022-11-25 18:02:55,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.85714285714286) internal successors, (720), 7 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,924 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,924 INFO L175 Difference]: Start difference. First operand has 97 places, 106 transitions, 1675 flow. Second operand 7 states and 720 transitions. [2022-11-25 18:02:55,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 173 transitions, 3027 flow [2022-11-25 18:02:55,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 173 transitions, 2751 flow, removed 109 selfloop flow, removed 8 redundant places. [2022-11-25 18:02:55,963 INFO L231 Difference]: Finished difference. Result has 95 places, 67 transitions, 901 flow [2022-11-25 18:02:55,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=1490, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=901, PETRI_PLACES=95, PETRI_TRANSITIONS=67} [2022-11-25 18:02:55,964 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 60 predicate places. [2022-11-25 18:02:55,964 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 67 transitions, 901 flow [2022-11-25 18:02:55,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.66666666666667) internal successors, (586), 6 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:55,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:55,965 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:55,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 18:02:55,965 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:55,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:55,966 INFO L85 PathProgramCache]: Analyzing trace with hash 331992129, now seen corresponding path program 1 times [2022-11-25 18:02:55,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:55,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75110135] [2022-11-25 18:02:55,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:55,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:56,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:56,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75110135] [2022-11-25 18:02:56,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75110135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:56,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:56,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:02:56,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325025513] [2022-11-25 18:02:56,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:56,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:02:56,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:02:56,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:02:56,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 217 [2022-11-25 18:02:56,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 67 transitions, 901 flow. Second operand has 8 states, 8 states have (on average 98.625) internal successors, (789), 8 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:56,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:02:56,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 217 [2022-11-25 18:02:56,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:02:56,982 INFO L130 PetriNetUnfolder]: 318/602 cut-off events. [2022-11-25 18:02:56,983 INFO L131 PetriNetUnfolder]: For 5386/5426 co-relation queries the response was YES. [2022-11-25 18:02:56,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4162 conditions, 602 events. 318/602 cut-off events. For 5386/5426 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2551 event pairs, 32 based on Foata normal form. 1/598 useless extension candidates. Maximal degree in co-relation 4110. Up to 332 conditions per place. [2022-11-25 18:02:56,989 INFO L137 encePairwiseOnDemand]: 210/217 looper letters, 45 selfloop transitions, 3 changer transitions 72/122 dead transitions. [2022-11-25 18:02:56,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 122 transitions, 1679 flow [2022-11-25 18:02:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:02:56,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 18:02:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 825 transitions. [2022-11-25 18:02:56,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47523041474654376 [2022-11-25 18:02:56,993 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 825 transitions. [2022-11-25 18:02:56,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 825 transitions. [2022-11-25 18:02:56,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:02:56,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 825 transitions. [2022-11-25 18:02:56,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 103.125) internal successors, (825), 8 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:57,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 217.0) internal successors, (1953), 9 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:57,016 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 217.0) internal successors, (1953), 9 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:57,016 INFO L175 Difference]: Start difference. First operand has 95 places, 67 transitions, 901 flow. Second operand 8 states and 825 transitions. [2022-11-25 18:02:57,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 122 transitions, 1679 flow [2022-11-25 18:02:57,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 122 transitions, 1359 flow, removed 107 selfloop flow, removed 19 redundant places. [2022-11-25 18:02:57,043 INFO L231 Difference]: Finished difference. Result has 81 places, 40 transitions, 326 flow [2022-11-25 18:02:57,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=326, PETRI_PLACES=81, PETRI_TRANSITIONS=40} [2022-11-25 18:02:57,044 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 46 predicate places. [2022-11-25 18:02:57,045 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 40 transitions, 326 flow [2022-11-25 18:02:57,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 98.625) internal successors, (789), 8 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:02:57,045 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:02:57,046 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:57,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 18:02:57,046 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-25 18:02:57,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:57,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2039221043, now seen corresponding path program 2 times [2022-11-25 18:02:57,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:57,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159875386] [2022-11-25 18:02:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:57,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:02:57,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:02:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:02:57,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:02:57,213 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:02:57,215 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-11-25 18:02:57,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-25 18:02:57,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-25 18:02:57,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-11-25 18:02:57,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-25 18:02:57,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-25 18:02:57,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 18:02:57,218 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:57,225 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:02:57,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:02:57,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:02:57 BasicIcfg [2022-11-25 18:02:57,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:02:57,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:02:57,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:02:57,303 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:02:57,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:02:30" (3/4) ... [2022-11-25 18:02:57,312 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 18:02:57,403 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:02:57,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:02:57,404 INFO L158 Benchmark]: Toolchain (without parser) took 29159.63ms. Allocated memory was 144.7MB in the beginning and 612.4MB in the end (delta: 467.7MB). Free memory was 112.8MB in the beginning and 263.8MB in the end (delta: -151.0MB). Peak memory consumption was 318.6MB. Max. memory is 16.1GB. [2022-11-25 18:02:57,404 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:02:57,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.14ms. Allocated memory is still 144.7MB. Free memory was 112.8MB in the beginning and 86.5MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-25 18:02:57,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.81ms. Allocated memory is still 144.7MB. Free memory was 86.5MB in the beginning and 83.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:02:57,405 INFO L158 Benchmark]: Boogie Preprocessor took 46.90ms. Allocated memory is still 144.7MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:02:57,405 INFO L158 Benchmark]: RCFGBuilder took 944.54ms. Allocated memory is still 144.7MB. Free memory was 81.4MB in the beginning and 46.6MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-25 18:02:57,406 INFO L158 Benchmark]: TraceAbstraction took 27207.82ms. Allocated memory was 144.7MB in the beginning and 612.4MB in the end (delta: 467.7MB). Free memory was 45.7MB in the beginning and 275.4MB in the end (delta: -229.7MB). Peak memory consumption was 241.0MB. Max. memory is 16.1GB. [2022-11-25 18:02:57,406 INFO L158 Benchmark]: Witness Printer took 100.57ms. Allocated memory is still 612.4MB. Free memory was 274.3MB in the beginning and 263.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 18:02:57,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.14ms. Allocated memory is still 144.7MB. Free memory was 112.8MB in the beginning and 86.5MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.81ms. Allocated memory is still 144.7MB. Free memory was 86.5MB in the beginning and 83.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.90ms. Allocated memory is still 144.7MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 944.54ms. Allocated memory is still 144.7MB. Free memory was 81.4MB in the beginning and 46.6MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27207.82ms. Allocated memory was 144.7MB in the beginning and 612.4MB in the end (delta: 467.7MB). Free memory was 45.7MB in the beginning and 275.4MB in the end (delta: -229.7MB). Peak memory consumption was 241.0MB. Max. memory is 16.1GB. * Witness Printer took 100.57ms. Allocated memory is still 612.4MB. Free memory was 274.3MB in the beginning and 263.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 121 PlacesBefore, 35 PlacesAfterwards, 113 TransitionsBefore, 26 TransitionsAfterwards, 2178 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 101 TotalNumberOfCompositions, 5842 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2592, independent: 2424, independent conditional: 0, independent unconditional: 2424, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1527, independent: 1470, independent conditional: 0, independent unconditional: 1470, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1527, independent: 1452, independent conditional: 0, independent unconditional: 1452, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 75, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 523, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 495, dependent conditional: 0, dependent unconditional: 495, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2592, independent: 954, independent conditional: 0, independent unconditional: 954, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 1527, unknown conditional: 0, unknown unconditional: 1527] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L718] 0 _Bool x$flush_delayed; [L719] 0 int x$mem_tmp; [L720] 0 _Bool x$r_buff0_thd0; [L721] 0 _Bool x$r_buff0_thd1; [L722] 0 _Bool x$r_buff0_thd2; [L723] 0 _Bool x$r_buff0_thd3; [L724] 0 _Bool x$r_buff1_thd0; [L725] 0 _Bool x$r_buff1_thd1; [L726] 0 _Bool x$r_buff1_thd2; [L727] 0 _Bool x$r_buff1_thd3; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L823] 0 pthread_t t748; [L824] FCALL, FORK 0 pthread_create(&t748, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t748, ((void *)0), P0, ((void *)0))=-2, t748={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L825] 0 pthread_t t749; [L826] FCALL, FORK 0 pthread_create(&t749, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t749, ((void *)0), P1, ((void *)0))=-1, t748={5:0}, t749={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L827] 0 pthread_t t750; [L828] FCALL, FORK 0 pthread_create(&t750, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t750, ((void *)0), P2, ((void *)0))=0, t748={5:0}, t749={6:0}, t750={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L763] 2 x$w_buff1 = x$w_buff0 [L764] 2 x$w_buff0 = 2 [L765] 2 x$w_buff1_used = x$w_buff0_used [L766] 2 x$w_buff0_used = (_Bool)1 [L767] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L767] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L768] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L769] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L770] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L771] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L772] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L792] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L795] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L798] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L746] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L801] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L802] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L803] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L804] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L805] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L749] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L750] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L751] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L752] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L753] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L832] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L832] RET 0 assume_abort_if_not(main$tmp_guard0) [L834] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L835] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L836] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L837] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L838] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t748={5:0}, t749={6:0}, t750={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 x$flush_delayed = weak$$choice2 [L844] 0 x$mem_tmp = x [L845] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L846] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L847] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L848] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L849] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L851] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L853] 0 x = x$flush_delayed ? x$mem_tmp : x [L854] 0 x$flush_delayed = (_Bool)0 [L856] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 824]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 144 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 26.9s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 994 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 790 mSDsluCounter, 712 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 559 mSDsCounter, 237 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2112 IncrementalHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 237 mSolverCounterUnsat, 153 mSDtfsCounter, 2112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1675occurred in iteration=12, InterpolantAutomatonStates: 99, 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: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 2262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 18:02:57,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0385e3f-c8ab-427e-b491-9c5bfbb7741c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE