./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8 --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 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 --- 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-e04fb08 [2022-11-16 11:04:09,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:04:09,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:04:09,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:04:09,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:04:09,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:04:09,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:04:09,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:04:09,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:04:09,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:04:09,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:04:09,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:04:09,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:04:09,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:04:09,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:04:09,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:04:09,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:04:09,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:04:09,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:04:09,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:04:09,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:04:09,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:04:09,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:04:09,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:04:09,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:04:09,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:04:09,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:04:09,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:04:09,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:04:09,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:04:09,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:04:09,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:04:09,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:04:09,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:04:09,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:04:09,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:04:09,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:04:09,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:04:09,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:04:09,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:04:09,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:04:09,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:04:09,367 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:04:09,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:04:09,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:04:09,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:04:09,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:04:09,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:04:09,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:04:09,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:04:09,371 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:04:09,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:04:09,371 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:04:09,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:04:09,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:04:09,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:04:09,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:04:09,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:04:09,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:04:09,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:04:09,373 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:04:09,374 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:04:09,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:04:09,374 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:04:09,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:04:09,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:04:09,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:04:09,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:04:09,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:04:09,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:04:09,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:04:09,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:04:09,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:04:09,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:04:09,377 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:04:09,377 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:04:09,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:04:09,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 [2022-11-16 11:04:09,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:04:09,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:04:09,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:04:09,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:04:09,736 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:04:09,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-16 11:04:09,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/data/e83226e03/e9950e45fcc84dae812d3449e187c44e/FLAGa877099f2 [2022-11-16 11:04:10,581 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:04:10,582 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-16 11:04:10,604 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/data/e83226e03/e9950e45fcc84dae812d3449e187c44e/FLAGa877099f2 [2022-11-16 11:04:10,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/data/e83226e03/e9950e45fcc84dae812d3449e187c44e [2022-11-16 11:04:10,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:04:10,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:04:10,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:04:10,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:04:10,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:04:10,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:04:10" (1/1) ... [2022-11-16 11:04:10,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f171d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:10, skipping insertion in model container [2022-11-16 11:04:10,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:04:10" (1/1) ... [2022-11-16 11:04:10,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:04:10,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:04:11,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:04:11,495 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:04:11,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:04:11,599 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:04:11,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11 WrapperNode [2022-11-16 11:04:11,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:04:11,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:04:11,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:04:11,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:04:11,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,689 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2022-11-16 11:04:11,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:04:11,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:04:11,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:04:11,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:04:11,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:04:11,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:04:11,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:04:11,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:04:11,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (1/1) ... [2022-11-16 11:04:11,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:04:11,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:04:11,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:04:11,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:04:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:04:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:04:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:04:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:04:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:04:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:04:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:04:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:04:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:04:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:04:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:04:11,867 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:04:12,099 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:04:12,102 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:04:12,388 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:04:12,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:04:12,400 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:04:12,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:12 BoogieIcfgContainer [2022-11-16 11:04:12,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:04:12,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:04:12,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:04:12,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:04:12,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:04:10" (1/3) ... [2022-11-16 11:04:12,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642367c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:12, skipping insertion in model container [2022-11-16 11:04:12,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:11" (2/3) ... [2022-11-16 11:04:12,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642367c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:12, skipping insertion in model container [2022-11-16 11:04:12,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:12" (3/3) ... [2022-11-16 11:04:12,414 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2022-11-16 11:04:12,426 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:04:12,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:04:12,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 11:04:12,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:04:12,502 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:04:12,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 74 transitions, 156 flow [2022-11-16 11:04:12,687 INFO L130 PetriNetUnfolder]: 0/73 cut-off events. [2022-11-16 11:04:12,687 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:04:12,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 0/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-16 11:04:12,693 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 74 transitions, 156 flow [2022-11-16 11:04:12,701 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 65 transitions, 133 flow [2022-11-16 11:04:12,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:04:12,736 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;@3cd41c4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:04:12,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 11:04:12,761 INFO L130 PetriNetUnfolder]: 0/47 cut-off events. [2022-11-16 11:04:12,761 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:04:12,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:12,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:12,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:12,771 INFO L85 PathProgramCache]: Analyzing trace with hash 28755730, now seen corresponding path program 1 times [2022-11-16 11:04:12,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:12,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858231099] [2022-11-16 11:04:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:13,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:13,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858231099] [2022-11-16 11:04:13,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858231099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:13,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:13,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:04:13,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361652327] [2022-11-16 11:04:13,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:13,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:04:13,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:13,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:04:13,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:04:13,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-11-16 11:04:13,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 133 flow. Second operand has 8 states, 8 states have (on average 49.75) internal successors, (398), 8 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:13,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:13,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-11-16 11:04:13,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:14,069 INFO L130 PetriNetUnfolder]: 18/124 cut-off events. [2022-11-16 11:04:14,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:04:14,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 124 events. 18/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 330 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 140. Up to 23 conditions per place. [2022-11-16 11:04:14,074 INFO L137 encePairwiseOnDemand]: 64/74 looper letters, 23 selfloop transitions, 8 changer transitions 9/82 dead transitions. [2022-11-16 11:04:14,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 82 transitions, 247 flow [2022-11-16 11:04:14,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:04:14,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:04:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 428 transitions. [2022-11-16 11:04:14,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.722972972972973 [2022-11-16 11:04:14,095 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 428 transitions. [2022-11-16 11:04:14,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 428 transitions. [2022-11-16 11:04:14,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:14,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 428 transitions. [2022-11-16 11:04:14,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.5) internal successors, (428), 8 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,117 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,119 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 133 flow. Second operand 8 states and 428 transitions. [2022-11-16 11:04:14,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 82 transitions, 247 flow [2022-11-16 11:04:14,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 82 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:04:14,128 INFO L231 Difference]: Finished difference. Result has 78 places, 66 transitions, 167 flow [2022-11-16 11:04:14,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=78, PETRI_TRANSITIONS=66} [2022-11-16 11:04:14,136 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 9 predicate places. [2022-11-16 11:04:14,136 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 66 transitions, 167 flow [2022-11-16 11:04:14,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 49.75) internal successors, (398), 8 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,137 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:14,137 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:14,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:04:14,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:14,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:14,139 INFO L85 PathProgramCache]: Analyzing trace with hash 879572328, now seen corresponding path program 1 times [2022-11-16 11:04:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:14,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092929273] [2022-11-16 11:04:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:14,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:14,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:14,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092929273] [2022-11-16 11:04:14,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092929273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:14,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:14,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:04:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017359616] [2022-11-16 11:04:14,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:14,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:04:14,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:14,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:04:14,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:04:14,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-11-16 11:04:14,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 66 transitions, 167 flow. Second operand has 9 states, 9 states have (on average 49.666666666666664) internal successors, (447), 9 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:14,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-11-16 11:04:14,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:14,792 INFO L130 PetriNetUnfolder]: 16/119 cut-off events. [2022-11-16 11:04:14,792 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-11-16 11:04:14,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 119 events. 16/119 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 332 event pairs, 5 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 171. Up to 25 conditions per place. [2022-11-16 11:04:14,804 INFO L137 encePairwiseOnDemand]: 63/74 looper letters, 20 selfloop transitions, 10 changer transitions 6/78 dead transitions. [2022-11-16 11:04:14,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 281 flow [2022-11-16 11:04:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:04:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:04:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 472 transitions. [2022-11-16 11:04:14,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7087087087087087 [2022-11-16 11:04:14,812 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 472 transitions. [2022-11-16 11:04:14,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 472 transitions. [2022-11-16 11:04:14,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:14,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 472 transitions. [2022-11-16 11:04:14,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 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) [2022-11-16 11:04:14,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,822 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,822 INFO L175 Difference]: Start difference. First operand has 78 places, 66 transitions, 167 flow. Second operand 9 states and 472 transitions. [2022-11-16 11:04:14,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 78 transitions, 281 flow [2022-11-16 11:04:14,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 260 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-16 11:04:14,830 INFO L231 Difference]: Finished difference. Result has 84 places, 69 transitions, 200 flow [2022-11-16 11:04:14,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=200, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2022-11-16 11:04:14,831 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 15 predicate places. [2022-11-16 11:04:14,832 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 200 flow [2022-11-16 11:04:14,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 49.666666666666664) internal successors, (447), 9 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:14,832 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:14,833 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:14,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:04:14,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:14,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:14,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1553925430, now seen corresponding path program 1 times [2022-11-16 11:04:14,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:14,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268209069] [2022-11-16 11:04:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:14,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:15,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:15,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:15,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268209069] [2022-11-16 11:04:15,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268209069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:15,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:15,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:04:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760116018] [2022-11-16 11:04:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:15,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:04:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:04:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:04:15,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 74 [2022-11-16 11:04:15,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 69 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:15,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:15,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 74 [2022-11-16 11:04:15,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:15,111 INFO L130 PetriNetUnfolder]: 6/105 cut-off events. [2022-11-16 11:04:15,111 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-16 11:04:15,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 105 events. 6/105 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 195 event pairs, 3 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 131. Up to 15 conditions per place. [2022-11-16 11:04:15,113 INFO L137 encePairwiseOnDemand]: 70/74 looper letters, 7 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2022-11-16 11:04:15,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 71 transitions, 226 flow [2022-11-16 11:04:15,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:04:15,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:04:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2022-11-16 11:04:15,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9234234234234234 [2022-11-16 11:04:15,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2022-11-16 11:04:15,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2022-11-16 11:04:15,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:15,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2022-11-16 11:04:15,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:15,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:15,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:15,119 INFO L175 Difference]: Start difference. First operand has 84 places, 69 transitions, 200 flow. Second operand 3 states and 205 transitions. [2022-11-16 11:04:15,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 71 transitions, 226 flow [2022-11-16 11:04:15,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 71 transitions, 208 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-16 11:04:15,124 INFO L231 Difference]: Finished difference. Result has 80 places, 69 transitions, 190 flow [2022-11-16 11:04:15,124 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=80, PETRI_TRANSITIONS=69} [2022-11-16 11:04:15,125 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 11 predicate places. [2022-11-16 11:04:15,125 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 190 flow [2022-11-16 11:04:15,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:15,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:15,127 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:15,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:04:15,127 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:15,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1323228520, now seen corresponding path program 1 times [2022-11-16 11:04:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:15,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683653073] [2022-11-16 11:04:15,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:15,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:15,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:15,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:15,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683653073] [2022-11-16 11:04:15,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683653073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:15,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:15,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:04:15,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639394746] [2022-11-16 11:04:15,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:15,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:04:15,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:15,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:04:15,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:04:15,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-16 11:04:15,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 190 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:15,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:15,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-16 11:04:15,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:16,083 INFO L130 PetriNetUnfolder]: 14/121 cut-off events. [2022-11-16 11:04:16,083 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-16 11:04:16,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 121 events. 14/121 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 278 event pairs, 4 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 194. Up to 28 conditions per place. [2022-11-16 11:04:16,088 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 32 selfloop transitions, 15 changer transitions 3/87 dead transitions. [2022-11-16 11:04:16,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 87 transitions, 338 flow [2022-11-16 11:04:16,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:04:16,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:04:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 610 transitions. [2022-11-16 11:04:16,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6340956340956341 [2022-11-16 11:04:16,093 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 610 transitions. [2022-11-16 11:04:16,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 610 transitions. [2022-11-16 11:04:16,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:16,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 610 transitions. [2022-11-16 11:04:16,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 46.92307692307692) internal successors, (610), 13 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:16,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:16,101 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:16,101 INFO L175 Difference]: Start difference. First operand has 80 places, 69 transitions, 190 flow. Second operand 13 states and 610 transitions. [2022-11-16 11:04:16,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 87 transitions, 338 flow [2022-11-16 11:04:16,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 87 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:04:16,116 INFO L231 Difference]: Finished difference. Result has 96 places, 74 transitions, 263 flow [2022-11-16 11:04:16,117 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=263, PETRI_PLACES=96, PETRI_TRANSITIONS=74} [2022-11-16 11:04:16,119 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 27 predicate places. [2022-11-16 11:04:16,120 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 74 transitions, 263 flow [2022-11-16 11:04:16,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:16,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:16,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:16,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:04:16,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:16,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:16,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1620692922, now seen corresponding path program 2 times [2022-11-16 11:04:16,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:16,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129900735] [2022-11-16 11:04:16,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:16,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:16,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:16,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129900735] [2022-11-16 11:04:16,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129900735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:16,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:16,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:04:16,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339813930] [2022-11-16 11:04:16,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:16,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:04:16,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:16,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:04:16,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:04:16,596 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-16 11:04:16,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 74 transitions, 263 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:16,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:16,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-16 11:04:16,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:17,178 INFO L130 PetriNetUnfolder]: 17/142 cut-off events. [2022-11-16 11:04:17,178 INFO L131 PetriNetUnfolder]: For 123/125 co-relation queries the response was YES. [2022-11-16 11:04:17,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 142 events. 17/142 cut-off events. For 123/125 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 391 event pairs, 5 based on Foata normal form. 4/144 useless extension candidates. Maximal degree in co-relation 280. Up to 25 conditions per place. [2022-11-16 11:04:17,181 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 31 selfloop transitions, 22 changer transitions 3/93 dead transitions. [2022-11-16 11:04:17,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 93 transitions, 435 flow [2022-11-16 11:04:17,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:04:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:04:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 829 transitions. [2022-11-16 11:04:17,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6223723723723724 [2022-11-16 11:04:17,202 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 829 transitions. [2022-11-16 11:04:17,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 829 transitions. [2022-11-16 11:04:17,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:17,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 829 transitions. [2022-11-16 11:04:17,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 46.05555555555556) internal successors, (829), 18 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:17,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 74.0) internal successors, (1406), 19 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:17,210 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 74.0) internal successors, (1406), 19 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:17,211 INFO L175 Difference]: Start difference. First operand has 96 places, 74 transitions, 263 flow. Second operand 18 states and 829 transitions. [2022-11-16 11:04:17,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 93 transitions, 435 flow [2022-11-16 11:04:17,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 93 transitions, 413 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-16 11:04:17,217 INFO L231 Difference]: Finished difference. Result has 110 places, 80 transitions, 342 flow [2022-11-16 11:04:17,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=342, PETRI_PLACES=110, PETRI_TRANSITIONS=80} [2022-11-16 11:04:17,218 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 41 predicate places. [2022-11-16 11:04:17,218 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 80 transitions, 342 flow [2022-11-16 11:04:17,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:17,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:17,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:17,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:04:17,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:17,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:17,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1748796185, now seen corresponding path program 1 times [2022-11-16 11:04:17,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:17,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830331056] [2022-11-16 11:04:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:17,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:17,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:17,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830331056] [2022-11-16 11:04:17,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830331056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:17,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:17,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:04:17,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463264345] [2022-11-16 11:04:17,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:17,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:04:17,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:04:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:04:17,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-16 11:04:17,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 80 transitions, 342 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:17,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:17,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-16 11:04:17,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:18,127 INFO L130 PetriNetUnfolder]: 17/141 cut-off events. [2022-11-16 11:04:18,127 INFO L131 PetriNetUnfolder]: For 183/185 co-relation queries the response was YES. [2022-11-16 11:04:18,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 141 events. 17/141 cut-off events. For 183/185 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 382 event pairs, 14 based on Foata normal form. 3/142 useless extension candidates. Maximal degree in co-relation 302. Up to 50 conditions per place. [2022-11-16 11:04:18,132 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 27 selfloop transitions, 19 changer transitions 2/85 dead transitions. [2022-11-16 11:04:18,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 85 transitions, 446 flow [2022-11-16 11:04:18,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:04:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:04:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 643 transitions. [2022-11-16 11:04:18,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6206563706563707 [2022-11-16 11:04:18,137 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 643 transitions. [2022-11-16 11:04:18,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 643 transitions. [2022-11-16 11:04:18,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:18,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 643 transitions. [2022-11-16 11:04:18,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 45.92857142857143) internal successors, (643), 14 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:18,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:18,146 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:18,146 INFO L175 Difference]: Start difference. First operand has 110 places, 80 transitions, 342 flow. Second operand 14 states and 643 transitions. [2022-11-16 11:04:18,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 85 transitions, 446 flow [2022-11-16 11:04:18,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 85 transitions, 383 flow, removed 8 selfloop flow, removed 15 redundant places. [2022-11-16 11:04:18,157 INFO L231 Difference]: Finished difference. Result has 107 places, 79 transitions, 313 flow [2022-11-16 11:04:18,158 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=313, PETRI_PLACES=107, PETRI_TRANSITIONS=79} [2022-11-16 11:04:18,161 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 38 predicate places. [2022-11-16 11:04:18,161 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 79 transitions, 313 flow [2022-11-16 11:04:18,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:18,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:18,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:18,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:04:18,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:18,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:18,163 INFO L85 PathProgramCache]: Analyzing trace with hash -10429268, now seen corresponding path program 3 times [2022-11-16 11:04:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:18,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860704825] [2022-11-16 11:04:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:18,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:18,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:18,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860704825] [2022-11-16 11:04:18,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860704825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:18,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:18,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:04:18,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131802602] [2022-11-16 11:04:18,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:18,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:04:18,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:04:18,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:04:18,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-11-16 11:04:18,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 79 transitions, 313 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:18,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:18,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-11-16 11:04:18,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:19,018 INFO L130 PetriNetUnfolder]: 16/135 cut-off events. [2022-11-16 11:04:19,018 INFO L131 PetriNetUnfolder]: For 121/123 co-relation queries the response was YES. [2022-11-16 11:04:19,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 135 events. 16/135 cut-off events. For 121/123 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 342 event pairs, 0 based on Foata normal form. 4/136 useless extension candidates. Maximal degree in co-relation 267. Up to 36 conditions per place. [2022-11-16 11:04:19,020 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 24 selfloop transitions, 23 changer transitions 2/86 dead transitions. [2022-11-16 11:04:19,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 86 transitions, 421 flow [2022-11-16 11:04:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:04:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:04:19,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 731 transitions. [2022-11-16 11:04:19,023 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6173986486486487 [2022-11-16 11:04:19,024 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 731 transitions. [2022-11-16 11:04:19,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 731 transitions. [2022-11-16 11:04:19,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:19,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 731 transitions. [2022-11-16 11:04:19,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 45.6875) internal successors, (731), 16 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,031 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,031 INFO L175 Difference]: Start difference. First operand has 107 places, 79 transitions, 313 flow. Second operand 16 states and 731 transitions. [2022-11-16 11:04:19,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 86 transitions, 421 flow [2022-11-16 11:04:19,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 86 transitions, 374 flow, removed 3 selfloop flow, removed 13 redundant places. [2022-11-16 11:04:19,036 INFO L231 Difference]: Finished difference. Result has 108 places, 78 transitions, 306 flow [2022-11-16 11:04:19,036 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=306, PETRI_PLACES=108, PETRI_TRANSITIONS=78} [2022-11-16 11:04:19,037 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 39 predicate places. [2022-11-16 11:04:19,037 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 78 transitions, 306 flow [2022-11-16 11:04:19,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,038 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:19,038 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:19,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:04:19,039 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:19,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1465004534, now seen corresponding path program 1 times [2022-11-16 11:04:19,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:19,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892795103] [2022-11-16 11:04:19,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:19,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:19,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:19,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892795103] [2022-11-16 11:04:19,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892795103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:19,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:19,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:19,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206258575] [2022-11-16 11:04:19,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:19,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:04:19,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:04:19,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:04:19,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-16 11:04:19,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 78 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:19,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-16 11:04:19,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:19,372 INFO L130 PetriNetUnfolder]: 17/147 cut-off events. [2022-11-16 11:04:19,372 INFO L131 PetriNetUnfolder]: For 132/134 co-relation queries the response was YES. [2022-11-16 11:04:19,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 147 events. 17/147 cut-off events. For 132/134 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 436 event pairs, 8 based on Foata normal form. 6/149 useless extension candidates. Maximal degree in co-relation 322. Up to 47 conditions per place. [2022-11-16 11:04:19,374 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 32 selfloop transitions, 4 changer transitions 12/87 dead transitions. [2022-11-16 11:04:19,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 87 transitions, 434 flow [2022-11-16 11:04:19,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:04:19,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:04:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 367 transitions. [2022-11-16 11:04:19,376 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7084942084942085 [2022-11-16 11:04:19,377 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 367 transitions. [2022-11-16 11:04:19,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 367 transitions. [2022-11-16 11:04:19,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:19,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 367 transitions. [2022-11-16 11:04:19,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,381 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,381 INFO L175 Difference]: Start difference. First operand has 108 places, 78 transitions, 306 flow. Second operand 7 states and 367 transitions. [2022-11-16 11:04:19,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 87 transitions, 434 flow [2022-11-16 11:04:19,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 87 transitions, 368 flow, removed 3 selfloop flow, removed 17 redundant places. [2022-11-16 11:04:19,385 INFO L231 Difference]: Finished difference. Result has 102 places, 73 transitions, 235 flow [2022-11-16 11:04:19,386 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=235, PETRI_PLACES=102, PETRI_TRANSITIONS=73} [2022-11-16 11:04:19,386 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 33 predicate places. [2022-11-16 11:04:19,387 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 73 transitions, 235 flow [2022-11-16 11:04:19,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:19,387 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:19,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:04:19,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:19,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash -183205434, now seen corresponding path program 1 times [2022-11-16 11:04:19,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:19,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510259524] [2022-11-16 11:04:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:19,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:19,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:19,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510259524] [2022-11-16 11:04:19,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510259524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:19,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:19,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:19,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022860539] [2022-11-16 11:04:19,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:19,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:04:19,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:19,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:04:19,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:04:19,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-16 11:04:19,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 73 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:19,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-16 11:04:19,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:19,701 INFO L130 PetriNetUnfolder]: 11/111 cut-off events. [2022-11-16 11:04:19,702 INFO L131 PetriNetUnfolder]: For 80/81 co-relation queries the response was YES. [2022-11-16 11:04:19,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 111 events. 11/111 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 223 event pairs, 6 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 224. Up to 33 conditions per place. [2022-11-16 11:04:19,703 INFO L137 encePairwiseOnDemand]: 66/74 looper letters, 23 selfloop transitions, 5 changer transitions 12/76 dead transitions. [2022-11-16 11:04:19,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 76 transitions, 313 flow [2022-11-16 11:04:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:04:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:04:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 407 transitions. [2022-11-16 11:04:19,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6875 [2022-11-16 11:04:19,706 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 407 transitions. [2022-11-16 11:04:19,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 407 transitions. [2022-11-16 11:04:19,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:19,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 407 transitions. [2022-11-16 11:04:19,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.875) internal successors, (407), 8 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,711 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,711 INFO L175 Difference]: Start difference. First operand has 102 places, 73 transitions, 235 flow. Second operand 8 states and 407 transitions. [2022-11-16 11:04:19,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 76 transitions, 313 flow [2022-11-16 11:04:19,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 76 transitions, 296 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-16 11:04:19,715 INFO L231 Difference]: Finished difference. Result has 93 places, 63 transitions, 192 flow [2022-11-16 11:04:19,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=192, PETRI_PLACES=93, PETRI_TRANSITIONS=63} [2022-11-16 11:04:19,716 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 24 predicate places. [2022-11-16 11:04:19,716 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 63 transitions, 192 flow [2022-11-16 11:04:19,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:19,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:19,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:04:19,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:19,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:19,718 INFO L85 PathProgramCache]: Analyzing trace with hash -987184042, now seen corresponding path program 2 times [2022-11-16 11:04:19,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:19,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228205380] [2022-11-16 11:04:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:19,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:19,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:19,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:19,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228205380] [2022-11-16 11:04:19,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228205380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:19,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:19,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:19,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251867038] [2022-11-16 11:04:19,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:19,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:04:19,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:19,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:04:19,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:04:19,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-16 11:04:19,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 63 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:19,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:19,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-16 11:04:19,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:20,017 INFO L130 PetriNetUnfolder]: 8/86 cut-off events. [2022-11-16 11:04:20,017 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-16 11:04:20,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 86 events. 8/86 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 4 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 128. Up to 31 conditions per place. [2022-11-16 11:04:20,018 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 18 selfloop transitions, 4 changer transitions 8/66 dead transitions. [2022-11-16 11:04:20,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 66 transitions, 261 flow [2022-11-16 11:04:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:04:20,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:04:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 358 transitions. [2022-11-16 11:04:20,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6911196911196911 [2022-11-16 11:04:20,021 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 358 transitions. [2022-11-16 11:04:20,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 358 transitions. [2022-11-16 11:04:20,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:20,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 358 transitions. [2022-11-16 11:04:20,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,026 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,026 INFO L175 Difference]: Start difference. First operand has 93 places, 63 transitions, 192 flow. Second operand 7 states and 358 transitions. [2022-11-16 11:04:20,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 66 transitions, 261 flow [2022-11-16 11:04:20,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:04:20,029 INFO L231 Difference]: Finished difference. Result has 79 places, 58 transitions, 151 flow [2022-11-16 11:04:20,030 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=79, PETRI_TRANSITIONS=58} [2022-11-16 11:04:20,031 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 10 predicate places. [2022-11-16 11:04:20,031 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 58 transitions, 151 flow [2022-11-16 11:04:20,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,032 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:04:20,032 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:20,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:04:20,032 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:04:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1769490636, now seen corresponding path program 3 times [2022-11-16 11:04:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:20,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100160866] [2022-11-16 11:04:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:20,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100160866] [2022-11-16 11:04:20,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100160866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:20,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:20,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803468554] [2022-11-16 11:04:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:20,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:04:20,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:20,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:04:20,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:04:20,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-11-16 11:04:20,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 58 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:04:20,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-11-16 11:04:20,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:04:20,327 INFO L130 PetriNetUnfolder]: 4/67 cut-off events. [2022-11-16 11:04:20,328 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 11:04:20,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 67 events. 4/67 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 102. Up to 9 conditions per place. [2022-11-16 11:04:20,329 INFO L137 encePairwiseOnDemand]: 66/74 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2022-11-16 11:04:20,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 59 transitions, 198 flow [2022-11-16 11:04:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:04:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:04:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 400 transitions. [2022-11-16 11:04:20,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6756756756756757 [2022-11-16 11:04:20,335 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 400 transitions. [2022-11-16 11:04:20,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 400 transitions. [2022-11-16 11:04:20,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:04:20,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 400 transitions. [2022-11-16 11:04:20,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.0) internal successors, (400), 8 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,342 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,342 INFO L175 Difference]: Start difference. First operand has 79 places, 58 transitions, 151 flow. Second operand 8 states and 400 transitions. [2022-11-16 11:04:20,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 59 transitions, 198 flow [2022-11-16 11:04:20,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 59 transitions, 178 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-16 11:04:20,344 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2022-11-16 11:04:20,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2022-11-16 11:04:20,345 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 2 predicate places. [2022-11-16 11:04:20,346 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2022-11-16 11:04:20,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:04:20,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-16 11:04:20,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-16 11:04:20,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-16 11:04:20,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-16 11:04:20,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-16 11:04:20,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-16 11:04:20,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-16 11:04:20,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:04:20,353 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1] [2022-11-16 11:04:20,360 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:04:20,360 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:04:20,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:04:20 BasicIcfg [2022-11-16 11:04:20,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:04:20,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:04:20,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:04:20,369 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:04:20,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:04:12" (3/4) ... [2022-11-16 11:04:20,375 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:04:20,383 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 11:04:20,391 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 11:04:20,391 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:04:20,391 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:04:20,442 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:04:20,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:04:20,444 INFO L158 Benchmark]: Toolchain (without parser) took 9677.91ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 82.2MB in the beginning and 86.8MB in the end (delta: -4.7MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2022-11-16 11:04:20,444 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 107.0MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:04:20,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 830.21ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 63.8MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 11:04:20,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.37ms. Allocated memory is still 107.0MB. Free memory was 63.8MB in the beginning and 61.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:04:20,445 INFO L158 Benchmark]: Boogie Preprocessor took 59.03ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 60.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:04:20,446 INFO L158 Benchmark]: RCFGBuilder took 651.15ms. Allocated memory is still 107.0MB. Free memory was 60.2MB in the beginning and 47.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:04:20,447 INFO L158 Benchmark]: TraceAbstraction took 7963.69ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 46.2MB in the beginning and 90.0MB in the end (delta: -43.8MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-11-16 11:04:20,447 INFO L158 Benchmark]: Witness Printer took 73.50ms. Allocated memory is still 176.2MB. Free memory was 90.0MB in the beginning and 86.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:04:20,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 107.0MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 830.21ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 63.8MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.37ms. Allocated memory is still 107.0MB. Free memory was 63.8MB in the beginning and 61.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.03ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 60.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.15ms. Allocated memory is still 107.0MB. Free memory was 60.2MB in the beginning and 47.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7963.69ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 46.2MB in the beginning and 90.0MB in the end (delta: -43.8MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Witness Printer took 73.50ms. Allocated memory is still 176.2MB. Free memory was 90.0MB in the beginning and 86.8MB 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: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: 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 3 procedures, 93 locations, 7 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: 7.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 744 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 744 mSDsluCounter, 456 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 326 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 943 IncrementalHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 130 mSDtfsCounter, 943 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=5, InterpolantAutomatonStates: 111, 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, 3.4s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 562 ConstructedInterpolants, 0 QuantifiedInterpolants, 3207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:04:20,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8c1691a-cc60-44ca-9e2b-48759a1befed/bin/uautomizer-tPACEb0tL8/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