./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:07:00,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:07:00,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:07:00,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:07:00,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:07:00,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:07:00,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:07:00,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:07:00,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:07:00,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:07:00,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:07:00,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:07:00,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:07:00,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:07:00,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:07:00,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:07:00,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:07:00,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:07:00,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:07:00,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:07:00,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:07:00,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:07:00,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:07:00,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:07:00,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:07:00,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:07:00,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:07:00,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:07:00,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:07:00,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:07:00,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:07:00,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:07:00,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:07:00,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:07:00,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:07:00,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:07:00,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:07:00,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:07:00,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:07:00,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:07:00,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:07:00,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 11:07:00,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:07:00,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:07:00,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:07:00,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:07:00,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:07:00,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:07:00,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:07:00,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:07:00,192 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:07:00,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:07:00,193 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:07:00,193 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:07:00,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:07:00,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:07:00,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:07:00,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:07:00,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:07:00,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:07:00,194 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:07:00,194 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:07:00,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:07:00,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:07:00,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:07:00,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:07:00,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:07:00,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:07:00,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:00,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:07:00,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:07:00,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:07:00,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:07:00,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:07:00,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:07:00,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:07:00,197 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:07:00,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:07:00,197 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:07:00,197 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_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e [2022-12-13 11:07:00,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:07:00,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:07:00,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:07:00,428 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:07:00,428 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:07:00,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-12-13 11:07:03,051 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:07:03,198 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:07:03,198 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-12-13 11:07:03,203 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/data/dd86b1226/6570edc619464c82b539eb3205c6de7f/FLAGb678ef4ba [2022-12-13 11:07:03,214 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/data/dd86b1226/6570edc619464c82b539eb3205c6de7f [2022-12-13 11:07:03,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:07:03,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:07:03,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:03,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:07:03,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:07:03,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153337d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03, skipping insertion in model container [2022-12-13 11:07:03,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:07:03,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:07:03,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,386 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_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-12-13 11:07:03,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:03,397 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:07:03,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:03,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:03,426 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_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-12-13 11:07:03,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:03,440 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:07:03,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03 WrapperNode [2022-12-13 11:07:03,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:03,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:03,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:07:03,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:07:03,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,478 INFO L138 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 123 [2022-12-13 11:07:03,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:03,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:07:03,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:07:03,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:07:03,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,499 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:07:03,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:07:03,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:07:03,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:07:03,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (1/1) ... [2022-12-13 11:07:03,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:03,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:07:03,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:07:03,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:07:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:07:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:07:03,573 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:07:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:07:03,573 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:07:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:07:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:07:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:07:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:07:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:07:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:07:03,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:07:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:07:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:07:03,576 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:07:03,650 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:07:03,652 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:07:03,887 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:07:03,951 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:07:03,952 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:07:03,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:03 BoogieIcfgContainer [2022-12-13 11:07:03,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:07:03,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:07:03,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:07:03,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:07:03,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:07:03" (1/3) ... [2022-12-13 11:07:03,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e60f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:07:03, skipping insertion in model container [2022-12-13 11:07:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:03" (2/3) ... [2022-12-13 11:07:03,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e60f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:07:03, skipping insertion in model container [2022-12-13 11:07:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:03" (3/3) ... [2022-12-13 11:07:03,962 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-12-13 11:07:03,970 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:07:03,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:07:03,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 11:07:03,981 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:07:04,038 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 11:07:04,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 146 transitions, 308 flow [2022-12-13 11:07:04,117 INFO L130 PetriNetUnfolder]: 9/144 cut-off events. [2022-12-13 11:07:04,117 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:07:04,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 144 events. 9/144 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-12-13 11:07:04,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 146 transitions, 308 flow [2022-12-13 11:07:04,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 125 transitions, 259 flow [2022-12-13 11:07:04,129 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:07:04,137 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 125 transitions, 259 flow [2022-12-13 11:07:04,139 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 125 transitions, 259 flow [2022-12-13 11:07:04,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 125 transitions, 259 flow [2022-12-13 11:07:04,161 INFO L130 PetriNetUnfolder]: 8/125 cut-off events. [2022-12-13 11:07:04,161 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:07:04,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 125 events. 8/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-12-13 11:07:04,162 INFO L119 LiptonReduction]: Number of co-enabled transitions 756 [2022-12-13 11:07:06,947 INFO L134 LiptonReduction]: Checked pairs total: 5224 [2022-12-13 11:07:06,947 INFO L136 LiptonReduction]: Total number of compositions: 124 [2022-12-13 11:07:06,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:07:06,962 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;@831fe3d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:07:06,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-13 11:07:06,964 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-13 11:07:06,964 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:06,964 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:06,964 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:07:06,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:06,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash 575789, now seen corresponding path program 1 times [2022-12-13 11:07:06,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:06,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970150848] [2022-12-13 11:07:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:07,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:07,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:07,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970150848] [2022-12-13 11:07:07,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970150848] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:07,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:07,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:07:07,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197624492] [2022-12-13 11:07:07,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:07,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:07:07,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:07,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:07:07,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:07:07,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:07,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:07,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:07,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:07,273 INFO L130 PetriNetUnfolder]: 249/447 cut-off events. [2022-12-13 11:07:07,273 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-13 11:07:07,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 447 events. 249/447 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1913 event pairs, 114 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 829. Up to 422 conditions per place. [2022-12-13 11:07:07,275 INFO L137 encePairwiseOnDemand]: 263/270 looper letters, 27 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2022-12-13 11:07:07,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 138 flow [2022-12-13 11:07:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:07:07,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:07:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2022-12-13 11:07:07,286 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48271604938271606 [2022-12-13 11:07:07,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2022-12-13 11:07:07,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2022-12-13 11:07:07,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:07,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2022-12-13 11:07:07,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,297 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 65 flow. Second operand 3 states and 391 transitions. [2022-12-13 11:07:07,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 138 flow [2022-12-13 11:07:07,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 11:07:07,301 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 85 flow [2022-12-13 11:07:07,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2022-12-13 11:07:07,305 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2022-12-13 11:07:07,305 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 85 flow [2022-12-13 11:07:07,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:07,305 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 11:07:07,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:07:07,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:07,306 INFO L85 PathProgramCache]: Analyzing trace with hash 17849922, now seen corresponding path program 1 times [2022-12-13 11:07:07,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:07,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143712123] [2022-12-13 11:07:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:07,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:07,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:07,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:07,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143712123] [2022-12-13 11:07:07,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143712123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:07,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:07,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:07:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849485134] [2022-12-13 11:07:07,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:07,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:07,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 270 [2022-12-13 11:07:07,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:07,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 270 [2022-12-13 11:07:07,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:07,614 INFO L130 PetriNetUnfolder]: 275/520 cut-off events. [2022-12-13 11:07:07,615 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-13 11:07:07,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 520 events. 275/520 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2438 event pairs, 56 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 1060. Up to 346 conditions per place. [2022-12-13 11:07:07,617 INFO L137 encePairwiseOnDemand]: 256/270 looper letters, 43 selfloop transitions, 10 changer transitions 0/55 dead transitions. [2022-12-13 11:07:07,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 55 transitions, 257 flow [2022-12-13 11:07:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:07:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:07:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 523 transitions. [2022-12-13 11:07:07,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4842592592592593 [2022-12-13 11:07:07,619 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 523 transitions. [2022-12-13 11:07:07,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 523 transitions. [2022-12-13 11:07:07,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:07,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 523 transitions. [2022-12-13 11:07:07,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,623 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,623 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 85 flow. Second operand 4 states and 523 transitions. [2022-12-13 11:07:07,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 55 transitions, 257 flow [2022-12-13 11:07:07,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 55 transitions, 253 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:07,625 INFO L231 Difference]: Finished difference. Result has 38 places, 39 transitions, 174 flow [2022-12-13 11:07:07,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2022-12-13 11:07:07,625 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2022-12-13 11:07:07,625 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 174 flow [2022-12-13 11:07:07,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:07,626 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 11:07:07,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:07:07,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:07,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash 17849923, now seen corresponding path program 1 times [2022-12-13 11:07:07,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:07,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858517020] [2022-12-13 11:07:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:07,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:07,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858517020] [2022-12-13 11:07:07,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858517020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:07,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:07,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:07:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704634389] [2022-12-13 11:07:07,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:07,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:07,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:07,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:07,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:07,729 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 270 [2022-12-13 11:07:07,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:07,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 270 [2022-12-13 11:07:07,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:07,852 INFO L130 PetriNetUnfolder]: 328/595 cut-off events. [2022-12-13 11:07:07,853 INFO L131 PetriNetUnfolder]: For 340/340 co-relation queries the response was YES. [2022-12-13 11:07:07,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 595 events. 328/595 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2665 event pairs, 98 based on Foata normal form. 56/577 useless extension candidates. Maximal degree in co-relation 1466. Up to 309 conditions per place. [2022-12-13 11:07:07,858 INFO L137 encePairwiseOnDemand]: 260/270 looper letters, 47 selfloop transitions, 8 changer transitions 0/57 dead transitions. [2022-12-13 11:07:07,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 339 flow [2022-12-13 11:07:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:07:07,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:07:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2022-12-13 11:07:07,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4787037037037037 [2022-12-13 11:07:07,861 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 517 transitions. [2022-12-13 11:07:07,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 517 transitions. [2022-12-13 11:07:07,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:07,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 517 transitions. [2022-12-13 11:07:07,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,870 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,870 INFO L175 Difference]: Start difference. First operand has 38 places, 39 transitions, 174 flow. Second operand 4 states and 517 transitions. [2022-12-13 11:07:07,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 339 flow [2022-12-13 11:07:07,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 57 transitions, 339 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:07:07,874 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 219 flow [2022-12-13 11:07:07,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=42, PETRI_TRANSITIONS=40} [2022-12-13 11:07:07,875 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2022-12-13 11:07:07,876 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 219 flow [2022-12-13 11:07:07,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:07,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:07,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:07:07,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:07,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash -688573025, now seen corresponding path program 1 times [2022-12-13 11:07:07,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:07,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471612350] [2022-12-13 11:07:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:07,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:07,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:07,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471612350] [2022-12-13 11:07:07,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471612350] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:07,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:07,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:07:07,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492920289] [2022-12-13 11:07:07,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:07,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:07,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:07,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:07,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:07,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:07,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:08,100 INFO L130 PetriNetUnfolder]: 307/559 cut-off events. [2022-12-13 11:07:08,101 INFO L131 PetriNetUnfolder]: For 575/581 co-relation queries the response was YES. [2022-12-13 11:07:08,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1592 conditions, 559 events. 307/559 cut-off events. For 575/581 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2552 event pairs, 80 based on Foata normal form. 10/563 useless extension candidates. Maximal degree in co-relation 1520. Up to 441 conditions per place. [2022-12-13 11:07:08,103 INFO L137 encePairwiseOnDemand]: 260/270 looper letters, 42 selfloop transitions, 12 changer transitions 0/58 dead transitions. [2022-12-13 11:07:08,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 388 flow [2022-12-13 11:07:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:07:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:07:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2022-12-13 11:07:08,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48518518518518516 [2022-12-13 11:07:08,104 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2022-12-13 11:07:08,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2022-12-13 11:07:08,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:08,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2022-12-13 11:07:08,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,107 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,107 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 219 flow. Second operand 4 states and 524 transitions. [2022-12-13 11:07:08,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 388 flow [2022-12-13 11:07:08,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 58 transitions, 385 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:08,110 INFO L231 Difference]: Finished difference. Result has 46 places, 44 transitions, 300 flow [2022-12-13 11:07:08,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=300, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2022-12-13 11:07:08,110 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2022-12-13 11:07:08,110 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 300 flow [2022-12-13 11:07:08,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:08,111 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:08,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:07:08,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:08,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 129085568, now seen corresponding path program 1 times [2022-12-13 11:07:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830497672] [2022-12-13 11:07:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:08,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:08,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:08,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830497672] [2022-12-13 11:07:08,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830497672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:08,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:08,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:08,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728858632] [2022-12-13 11:07:08,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:08,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:08,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:08,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:08,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:08,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:08,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 300 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:08,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:08,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:08,304 INFO L130 PetriNetUnfolder]: 299/539 cut-off events. [2022-12-13 11:07:08,305 INFO L131 PetriNetUnfolder]: For 916/926 co-relation queries the response was YES. [2022-12-13 11:07:08,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 539 events. 299/539 cut-off events. For 916/926 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2404 event pairs, 68 based on Foata normal form. 18/557 useless extension candidates. Maximal degree in co-relation 1610. Up to 412 conditions per place. [2022-12-13 11:07:08,309 INFO L137 encePairwiseOnDemand]: 259/270 looper letters, 45 selfloop transitions, 16 changer transitions 0/65 dead transitions. [2022-12-13 11:07:08,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 503 flow [2022-12-13 11:07:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:08,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 648 transitions. [2022-12-13 11:07:08,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48 [2022-12-13 11:07:08,311 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 648 transitions. [2022-12-13 11:07:08,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 648 transitions. [2022-12-13 11:07:08,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:08,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 648 transitions. [2022-12-13 11:07:08,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.6) internal successors, (648), 5 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,314 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,314 INFO L175 Difference]: Start difference. First operand has 46 places, 44 transitions, 300 flow. Second operand 5 states and 648 transitions. [2022-12-13 11:07:08,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 503 flow [2022-12-13 11:07:08,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 499 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:08,317 INFO L231 Difference]: Finished difference. Result has 52 places, 50 transitions, 420 flow [2022-12-13 11:07:08,317 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=420, PETRI_PLACES=52, PETRI_TRANSITIONS=50} [2022-12-13 11:07:08,317 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2022-12-13 11:07:08,318 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 420 flow [2022-12-13 11:07:08,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:08,318 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:08,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:07:08,318 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:08,319 INFO L85 PathProgramCache]: Analyzing trace with hash 129073478, now seen corresponding path program 2 times [2022-12-13 11:07:08,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:08,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089054092] [2022-12-13 11:07:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:08,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:08,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:08,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089054092] [2022-12-13 11:07:08,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089054092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:08,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:08,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:08,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665184921] [2022-12-13 11:07:08,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:08,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:08,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:08,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:08,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:08,403 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:08,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 420 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:08,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:08,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:08,539 INFO L130 PetriNetUnfolder]: 294/564 cut-off events. [2022-12-13 11:07:08,539 INFO L131 PetriNetUnfolder]: For 1835/1845 co-relation queries the response was YES. [2022-12-13 11:07:08,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 564 events. 294/564 cut-off events. For 1835/1845 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2706 event pairs, 20 based on Foata normal form. 48/612 useless extension candidates. Maximal degree in co-relation 1846. Up to 317 conditions per place. [2022-12-13 11:07:08,541 INFO L137 encePairwiseOnDemand]: 257/270 looper letters, 46 selfloop transitions, 25 changer transitions 2/77 dead transitions. [2022-12-13 11:07:08,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 77 transitions, 670 flow [2022-12-13 11:07:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:08,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 658 transitions. [2022-12-13 11:07:08,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4874074074074074 [2022-12-13 11:07:08,543 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 658 transitions. [2022-12-13 11:07:08,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 658 transitions. [2022-12-13 11:07:08,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:08,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 658 transitions. [2022-12-13 11:07:08,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.6) internal successors, (658), 5 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,546 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,546 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 420 flow. Second operand 5 states and 658 transitions. [2022-12-13 11:07:08,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 77 transitions, 670 flow [2022-12-13 11:07:08,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 77 transitions, 662 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:08,550 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 538 flow [2022-12-13 11:07:08,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=538, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2022-12-13 11:07:08,550 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2022-12-13 11:07:08,551 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 538 flow [2022-12-13 11:07:08,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:08,551 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:08,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:07:08,551 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:08,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:08,551 INFO L85 PathProgramCache]: Analyzing trace with hash -688573024, now seen corresponding path program 1 times [2022-12-13 11:07:08,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:08,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667194362] [2022-12-13 11:07:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:08,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:08,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:08,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:08,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667194362] [2022-12-13 11:07:08,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667194362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:08,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:08,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:07:08,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755997916] [2022-12-13 11:07:08,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:08,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:08,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:08,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:08,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:08,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:08,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:08,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:08,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:08,729 INFO L130 PetriNetUnfolder]: 209/435 cut-off events. [2022-12-13 11:07:08,729 INFO L131 PetriNetUnfolder]: For 2362/2374 co-relation queries the response was YES. [2022-12-13 11:07:08,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 435 events. 209/435 cut-off events. For 2362/2374 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2108 event pairs, 42 based on Foata normal form. 40/475 useless extension candidates. Maximal degree in co-relation 1584. Up to 291 conditions per place. [2022-12-13 11:07:08,731 INFO L137 encePairwiseOnDemand]: 262/270 looper letters, 49 selfloop transitions, 8 changer transitions 2/63 dead transitions. [2022-12-13 11:07:08,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 63 transitions, 626 flow [2022-12-13 11:07:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:07:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:07:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 519 transitions. [2022-12-13 11:07:08,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48055555555555557 [2022-12-13 11:07:08,733 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 519 transitions. [2022-12-13 11:07:08,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 519 transitions. [2022-12-13 11:07:08,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:08,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 519 transitions. [2022-12-13 11:07:08,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,735 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,735 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 538 flow. Second operand 4 states and 519 transitions. [2022-12-13 11:07:08,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 63 transitions, 626 flow [2022-12-13 11:07:08,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 63 transitions, 562 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-12-13 11:07:08,739 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 421 flow [2022-12-13 11:07:08,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=421, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2022-12-13 11:07:08,739 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2022-12-13 11:07:08,740 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 421 flow [2022-12-13 11:07:08,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:08,740 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:08,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:07:08,740 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:08,740 INFO L85 PathProgramCache]: Analyzing trace with hash -293698302, now seen corresponding path program 1 times [2022-12-13 11:07:08,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:08,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321127397] [2022-12-13 11:07:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:08,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:08,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:08,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:08,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321127397] [2022-12-13 11:07:08,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321127397] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:08,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:08,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:08,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624434045] [2022-12-13 11:07:08,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:08,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:07:08,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:08,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:07:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:07:08,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:08,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 421 flow. Second operand has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:08,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:08,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:08,918 INFO L130 PetriNetUnfolder]: 111/271 cut-off events. [2022-12-13 11:07:08,918 INFO L131 PetriNetUnfolder]: For 1520/1528 co-relation queries the response was YES. [2022-12-13 11:07:08,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 271 events. 111/271 cut-off events. For 1520/1528 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1300 event pairs, 6 based on Foata normal form. 58/329 useless extension candidates. Maximal degree in co-relation 895. Up to 106 conditions per place. [2022-12-13 11:07:08,920 INFO L137 encePairwiseOnDemand]: 258/270 looper letters, 33 selfloop transitions, 13 changer transitions 13/62 dead transitions. [2022-12-13 11:07:08,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 62 transitions, 501 flow [2022-12-13 11:07:08,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:07:08,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:07:08,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 769 transitions. [2022-12-13 11:07:08,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47469135802469137 [2022-12-13 11:07:08,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 769 transitions. [2022-12-13 11:07:08,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 769 transitions. [2022-12-13 11:07:08,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:08,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 769 transitions. [2022-12-13 11:07:08,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,928 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,928 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 421 flow. Second operand 6 states and 769 transitions. [2022-12-13 11:07:08,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 62 transitions, 501 flow [2022-12-13 11:07:08,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 453 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-12-13 11:07:08,932 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 228 flow [2022-12-13 11:07:08,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2022-12-13 11:07:08,933 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2022-12-13 11:07:08,933 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 228 flow [2022-12-13 11:07:08,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:08,934 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:08,934 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:08,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:07:08,934 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:08,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash 129085569, now seen corresponding path program 1 times [2022-12-13 11:07:08,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:08,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277799071] [2022-12-13 11:07:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:08,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:08,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:08,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277799071] [2022-12-13 11:07:08,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277799071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:08,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:08,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:08,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847184440] [2022-12-13 11:07:08,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:08,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:08,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:09,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:09,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:09,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:09,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 228 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:09,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:09,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:09,063 INFO L130 PetriNetUnfolder]: 42/96 cut-off events. [2022-12-13 11:07:09,063 INFO L131 PetriNetUnfolder]: For 519/519 co-relation queries the response was YES. [2022-12-13 11:07:09,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 96 events. 42/96 cut-off events. For 519/519 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 287 event pairs, 0 based on Foata normal form. 18/114 useless extension candidates. Maximal degree in co-relation 323. Up to 41 conditions per place. [2022-12-13 11:07:09,064 INFO L137 encePairwiseOnDemand]: 264/270 looper letters, 16 selfloop transitions, 4 changer transitions 8/30 dead transitions. [2022-12-13 11:07:09,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 30 transitions, 203 flow [2022-12-13 11:07:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 624 transitions. [2022-12-13 11:07:09,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4622222222222222 [2022-12-13 11:07:09,067 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 624 transitions. [2022-12-13 11:07:09,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 624 transitions. [2022-12-13 11:07:09,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:09,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 624 transitions. [2022-12-13 11:07:09,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,071 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,072 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 228 flow. Second operand 5 states and 624 transitions. [2022-12-13 11:07:09,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 30 transitions, 203 flow [2022-12-13 11:07:09,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 138 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-12-13 11:07:09,073 INFO L231 Difference]: Finished difference. Result has 35 places, 15 transitions, 57 flow [2022-12-13 11:07:09,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=35, PETRI_TRANSITIONS=15} [2022-12-13 11:07:09,074 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2022-12-13 11:07:09,074 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 15 transitions, 57 flow [2022-12-13 11:07:09,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:09,075 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:09,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:07:09,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-13 11:07:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:09,075 INFO L85 PathProgramCache]: Analyzing trace with hash -293298941, now seen corresponding path program 1 times [2022-12-13 11:07:09,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:09,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511734511] [2022-12-13 11:07:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:09,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:09,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:09,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511734511] [2022-12-13 11:07:09,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511734511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:09,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:09,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:09,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492212803] [2022-12-13 11:07:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:09,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:07:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:07:09,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:07:09,167 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 270 [2022-12-13 11:07:09,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 15 transitions, 57 flow. Second operand has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:09,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 270 [2022-12-13 11:07:09,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:09,203 INFO L130 PetriNetUnfolder]: 20/52 cut-off events. [2022-12-13 11:07:09,203 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 11:07:09,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 52 events. 20/52 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 116 event pairs, 0 based on Foata normal form. 14/65 useless extension candidates. Maximal degree in co-relation 129. Up to 23 conditions per place. [2022-12-13 11:07:09,204 INFO L137 encePairwiseOnDemand]: 264/270 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2022-12-13 11:07:09,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 21 transitions, 100 flow [2022-12-13 11:07:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:07:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:07:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 735 transitions. [2022-12-13 11:07:09,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2022-12-13 11:07:09,207 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 735 transitions. [2022-12-13 11:07:09,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 735 transitions. [2022-12-13 11:07:09,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:09,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 735 transitions. [2022-12-13 11:07:09,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,212 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 270.0) internal successors, (1890), 7 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,212 INFO L175 Difference]: Start difference. First operand has 35 places, 15 transitions, 57 flow. Second operand 6 states and 735 transitions. [2022-12-13 11:07:09,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 21 transitions, 100 flow [2022-12-13 11:07:09,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 84 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-12-13 11:07:09,213 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2022-12-13 11:07:09,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2022-12-13 11:07:09,213 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -10 predicate places. [2022-12-13 11:07:09,214 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2022-12-13 11:07:09,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:09,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-12-13 11:07:09,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-12-13 11:07:09,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-12-13 11:07:09,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-12-13 11:07:09,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-12-13 11:07:09,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-12-13 11:07:09,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-12-13 11:07:09,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-12-13 11:07:09,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2022-12-13 11:07:09,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-12-13 11:07:09,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-12-13 11:07:09,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-12-13 11:07:09,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-12-13 11:07:09,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-12-13 11:07:09,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-12-13 11:07:09,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-12-13 11:07:09,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-12-13 11:07:09,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-12-13 11:07:09,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 11:07:09,219 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:09,224 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:07:09,224 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:07:09,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:07:09 BasicIcfg [2022-12-13 11:07:09,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:07:09,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:07:09,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:07:09,228 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:07:09,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:03" (3/4) ... [2022-12-13 11:07:09,231 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:07:09,236 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 11:07:09,236 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 11:07:09,240 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-13 11:07:09,240 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:07:09,240 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:07:09,241 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:07:09,273 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:07:09,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:07:09,274 INFO L158 Benchmark]: Toolchain (without parser) took 6057.28ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 94.9MB in the end (delta: 26.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 11:07:09,274 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 71.5MB in the beginning and 71.5MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:07:09,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.11ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 107.7MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 11:07:09,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.49ms. Allocated memory is still 161.5MB. Free memory was 107.7MB in the beginning and 106.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:07:09,275 INFO L158 Benchmark]: Boogie Preprocessor took 23.48ms. Allocated memory is still 161.5MB. Free memory was 106.1MB in the beginning and 104.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:07:09,275 INFO L158 Benchmark]: RCFGBuilder took 451.49ms. Allocated memory is still 161.5MB. Free memory was 104.4MB in the beginning and 125.5MB in the end (delta: -21.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-12-13 11:07:09,276 INFO L158 Benchmark]: TraceAbstraction took 5271.11ms. Allocated memory is still 161.5MB. Free memory was 125.5MB in the beginning and 98.0MB in the end (delta: 27.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-12-13 11:07:09,276 INFO L158 Benchmark]: Witness Printer took 45.68ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 94.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:07:09,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 71.5MB in the beginning and 71.5MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.11ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 107.7MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.49ms. Allocated memory is still 161.5MB. Free memory was 107.7MB in the beginning and 106.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.48ms. Allocated memory is still 161.5MB. Free memory was 106.1MB in the beginning and 104.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 451.49ms. Allocated memory is still 161.5MB. Free memory was 104.4MB in the beginning and 125.5MB in the end (delta: -21.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5271.11ms. Allocated memory is still 161.5MB. Free memory was 125.5MB in the beginning and 98.0MB in the end (delta: 27.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 45.68ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 94.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 124 PlacesBefore, 33 PlacesAfterwards, 125 TransitionsBefore, 28 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 9 FixpointIterations, 77 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 24 TrivialYvCompositions, 4 ConcurrentYvCompositions, 6 ChoiceCompositions, 124 TotalNumberOfCompositions, 5224 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1967, independent: 1638, independent conditional: 0, independent unconditional: 1638, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 399, independent: 367, independent conditional: 0, independent unconditional: 367, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1967, independent: 1271, independent conditional: 0, independent unconditional: 1271, dependent: 297, dependent conditional: 0, dependent unconditional: 297, unknown: 399, unknown conditional: 0, unknown unconditional: 399] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 167 locations, 18 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: 5.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 933 IncrementalHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 10 mSDtfsCounter, 933 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=538occurred in iteration=6, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:07:09,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9da14ef3-bbbf-41c7-ba3b-2cd81f9da339/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE