./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:28,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:28,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:54:28,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:28,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:28,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:28,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:28,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:28,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:28,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:28,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:28,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:28,870 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:28,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:28,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:54:28,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:28,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:28,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:28,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:28,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:54:28,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:28,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:54:28,877 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:54:28,877 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:28,878 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:28,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:54:28,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:28,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:28,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:28,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:28,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:28,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:28,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:28,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:54:28,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:28,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:54:28,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:28,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:54:28,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:28,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:28,885 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:28,885 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2023-11-19 07:54:29,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:29,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:29,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:29,256 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:29,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:29,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2023-11-19 07:54:32,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:32,756 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:32,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2023-11-19 07:54:32,789 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/data/92828cf13/6469af68a74b4497b934aa759f8f70c7/FLAG9020c59db [2023-11-19 07:54:32,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/data/92828cf13/6469af68a74b4497b934aa759f8f70c7 [2023-11-19 07:54:32,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:32,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:32,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:32,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:32,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:32,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:32" (1/1) ... [2023-11-19 07:54:32,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360e92da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:32, skipping insertion in model container [2023-11-19 07:54:32,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:32" (1/1) ... [2023-11-19 07:54:32,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:33,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:33,470 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:33,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:33,662 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:33,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33 WrapperNode [2023-11-19 07:54:33,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:33,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:33,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:33,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:33,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,786 INFO L138 Inliner]: procedures = 271, calls = 57, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 227 [2023-11-19 07:54:33,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:33,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:33,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:33,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:33,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:33,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:33,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:33,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:33,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:33,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:33,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:54:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:54:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:54:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:54:33,959 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:54:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:54:33,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:33,961 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:54:34,185 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:34,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:34,696 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:34,717 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:34,720 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-11-19 07:54:34,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:34 BoogieIcfgContainer [2023-11-19 07:54:34,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:34,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:34,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:34,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:34,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:32" (1/3) ... [2023-11-19 07:54:34,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f23207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:34, skipping insertion in model container [2023-11-19 07:54:34,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (2/3) ... [2023-11-19 07:54:34,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f23207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:34, skipping insertion in model container [2023-11-19 07:54:34,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:34" (3/3) ... [2023-11-19 07:54:34,746 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2023-11-19 07:54:34,769 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:54:34,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:34,783 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 07:54:34,783 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:54:34,897 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:54:34,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 247 transitions, 501 flow [2023-11-19 07:54:35,071 INFO L124 PetriNetUnfolderBase]: 46/334 cut-off events. [2023-11-19 07:54:35,072 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:35,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 334 events. 46/334 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1148 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 167. Up to 8 conditions per place. [2023-11-19 07:54:35,082 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 247 transitions, 501 flow [2023-11-19 07:54:35,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 242 transitions, 491 flow [2023-11-19 07:54:35,097 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:54:35,108 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 216 places, 242 transitions, 491 flow [2023-11-19 07:54:35,112 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 216 places, 242 transitions, 491 flow [2023-11-19 07:54:35,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 242 transitions, 491 flow [2023-11-19 07:54:35,188 INFO L124 PetriNetUnfolderBase]: 44/329 cut-off events. [2023-11-19 07:54:35,189 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:35,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 329 events. 44/329 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1174 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 167. Up to 8 conditions per place. [2023-11-19 07:54:35,203 INFO L119 LiptonReduction]: Number of co-enabled transitions 13774 [2023-11-19 07:54:46,477 INFO L134 LiptonReduction]: Checked pairs total: 32091 [2023-11-19 07:54:46,477 INFO L136 LiptonReduction]: Total number of compositions: 255 [2023-11-19 07:54:46,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:54:46,506 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=LoopHeads, 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;@4b4ae257, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:54:46,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-19 07:54:46,509 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:54:46,510 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:54:46,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:46,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:46,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:54:46,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:54:46,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:46,521 INFO L85 PathProgramCache]: Analyzing trace with hash 966, now seen corresponding path program 1 times [2023-11-19 07:54:46,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:46,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480862834] [2023-11-19 07:54:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:46,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:46,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:46,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:46,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480862834] [2023-11-19 07:54:46,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480862834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:46,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:46,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:54:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401348914] [2023-11-19 07:54:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:46,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:54:46,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:54:46,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:54:46,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 502 [2023-11-19 07:54:46,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 80 transitions, 167 flow. Second operand has 2 states, 2 states have (on average 217.5) internal successors, (435), 2 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:46,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:46,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 502 [2023-11-19 07:54:46,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:47,078 INFO L124 PetriNetUnfolderBase]: 450/970 cut-off events. [2023-11-19 07:54:47,079 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:47,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 970 events. 450/970 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5224 event pairs, 408 based on Foata normal form. 113/824 useless extension candidates. Maximal degree in co-relation 1797. Up to 884 conditions per place. [2023-11-19 07:54:47,090 INFO L140 encePairwiseOnDemand]: 475/502 looper letters, 46 selfloop transitions, 0 changer transitions 0/53 dead transitions. [2023-11-19 07:54:47,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 53 transitions, 205 flow [2023-11-19 07:54:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:54:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:54:47,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 507 transitions. [2023-11-19 07:54:47,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5049800796812749 [2023-11-19 07:54:47,110 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 507 transitions. [2023-11-19 07:54:47,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 507 transitions. [2023-11-19 07:54:47,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:47,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 507 transitions. [2023-11-19 07:54:47,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,131 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 502.0) internal successors, (1506), 3 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,133 INFO L175 Difference]: Start difference. First operand has 59 places, 80 transitions, 167 flow. Second operand 2 states and 507 transitions. [2023-11-19 07:54:47,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 53 transitions, 205 flow [2023-11-19 07:54:47,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:54:47,143 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 113 flow [2023-11-19 07:54:47,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=113, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2023-11-19 07:54:47,151 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2023-11-19 07:54:47,151 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 113 flow [2023-11-19 07:54:47,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 217.5) internal successors, (435), 2 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:47,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:54:47,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:54:47,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:54:47,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash 29856379, now seen corresponding path program 1 times [2023-11-19 07:54:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:47,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63844438] [2023-11-19 07:54:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:47,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:47,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:47,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63844438] [2023-11-19 07:54:47,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63844438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:47,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:47,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:54:47,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059171356] [2023-11-19 07:54:47,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:47,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:47,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:47,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 502 [2023-11-19 07:54:47,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:47,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 502 [2023-11-19 07:54:47,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:47,812 INFO L124 PetriNetUnfolderBase]: 414/872 cut-off events. [2023-11-19 07:54:47,812 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:47,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 872 events. 414/872 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4615 event pairs, 210 based on Foata normal form. 0/670 useless extension candidates. Maximal degree in co-relation 1668. Up to 774 conditions per place. [2023-11-19 07:54:47,820 INFO L140 encePairwiseOnDemand]: 497/502 looper letters, 60 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2023-11-19 07:54:47,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 69 transitions, 269 flow [2023-11-19 07:54:47,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:54:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-11-19 07:54:47,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634794156706507 [2023-11-19 07:54:47,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-11-19 07:54:47,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-11-19 07:54:47,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:47,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-11-19 07:54:47,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 502.0) internal successors, (2008), 4 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,838 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 113 flow. Second operand 3 states and 698 transitions. [2023-11-19 07:54:47,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 69 transitions, 269 flow [2023-11-19 07:54:47,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 69 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:54:47,848 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 117 flow [2023-11-19 07:54:47,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=502, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2023-11-19 07:54:47,850 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -3 predicate places. [2023-11-19 07:54:47,850 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 117 flow [2023-11-19 07:54:47,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:47,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:47,853 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:54:47,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:54:47,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:54:47,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:47,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1372715736, now seen corresponding path program 1 times [2023-11-19 07:54:47,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:47,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117052991] [2023-11-19 07:54:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:47,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:47,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:47,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:47,995 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:54:47,998 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2023-11-19 07:54:48,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2023-11-19 07:54:48,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2023-11-19 07:54:48,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2023-11-19 07:54:48,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2023-11-19 07:54:48,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2023-11-19 07:54:48,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2023-11-19 07:54:48,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2023-11-19 07:54:48,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2023-11-19 07:54:48,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2023-11-19 07:54:48,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2023-11-19 07:54:48,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2023-11-19 07:54:48,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2023-11-19 07:54:48,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2023-11-19 07:54:48,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2023-11-19 07:54:48,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2023-11-19 07:54:48,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2023-11-19 07:54:48,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2023-11-19 07:54:48,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2023-11-19 07:54:48,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2023-11-19 07:54:48,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2023-11-19 07:54:48,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:54:48,008 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:54:48,039 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:54:48,040 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:54:48,100 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:54:48,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 320 transitions, 656 flow [2023-11-19 07:54:48,289 INFO L124 PetriNetUnfolderBase]: 77/532 cut-off events. [2023-11-19 07:54:48,289 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:54:48,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 532 events. 77/532 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2204 event pairs, 0 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 336. Up to 12 conditions per place. [2023-11-19 07:54:48,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 320 transitions, 656 flow [2023-11-19 07:54:48,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 318 transitions, 652 flow [2023-11-19 07:54:48,313 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:54:48,313 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 318 transitions, 652 flow [2023-11-19 07:54:48,314 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 318 transitions, 652 flow [2023-11-19 07:54:48,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 318 transitions, 652 flow [2023-11-19 07:54:48,437 INFO L124 PetriNetUnfolderBase]: 76/530 cut-off events. [2023-11-19 07:54:48,437 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:54:48,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 530 events. 76/530 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2244 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 334. Up to 12 conditions per place. [2023-11-19 07:54:48,491 INFO L119 LiptonReduction]: Number of co-enabled transitions 40328 [2023-11-19 07:54:58,852 INFO L134 LiptonReduction]: Checked pairs total: 80853 [2023-11-19 07:54:58,852 INFO L136 LiptonReduction]: Total number of compositions: 303 [2023-11-19 07:54:58,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:54:58,857 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=LoopHeads, 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;@4b4ae257, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:54:58,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-19 07:54:58,858 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:54:58,858 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:54:58,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:58,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:58,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:54:58,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:54:58,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:58,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1669, now seen corresponding path program 1 times [2023-11-19 07:54:58,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:58,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525764099] [2023-11-19 07:54:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:58,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:58,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:58,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525764099] [2023-11-19 07:54:58,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525764099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:58,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:58,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:54:58,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418375332] [2023-11-19 07:54:58,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:58,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:54:58,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:58,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:54:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:54:58,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 623 [2023-11-19 07:54:58,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 115 transitions, 246 flow. Second operand has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:58,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:58,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 623 [2023-11-19 07:54:58,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:02,618 INFO L124 PetriNetUnfolderBase]: 19032/29617 cut-off events. [2023-11-19 07:55:02,618 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-11-19 07:55:02,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57872 conditions, 29617 events. 19032/29617 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1105. Compared 214083 event pairs, 18054 based on Foata normal form. 3827/24653 useless extension candidates. Maximal degree in co-relation 25656. Up to 28153 conditions per place. [2023-11-19 07:55:02,874 INFO L140 encePairwiseOnDemand]: 588/623 looper letters, 69 selfloop transitions, 0 changer transitions 0/80 dead transitions. [2023-11-19 07:55:02,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 80 transitions, 314 flow [2023-11-19 07:55:02,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:02,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:55:02,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 654 transitions. [2023-11-19 07:55:02,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5248796147672552 [2023-11-19 07:55:02,879 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 654 transitions. [2023-11-19 07:55:02,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 654 transitions. [2023-11-19 07:55:02,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:02,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 654 transitions. [2023-11-19 07:55:02,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 327.0) internal successors, (654), 2 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:02,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 623.0) internal successors, (1869), 3 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:02,891 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 623.0) internal successors, (1869), 3 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:02,891 INFO L175 Difference]: Start difference. First operand has 84 places, 115 transitions, 246 flow. Second operand 2 states and 654 transitions. [2023-11-19 07:55:02,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 80 transitions, 314 flow [2023-11-19 07:55:02,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 80 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:55:02,901 INFO L231 Difference]: Finished difference. Result has 81 places, 80 transitions, 176 flow [2023-11-19 07:55:02,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=176, PETRI_PLACES=81, PETRI_TRANSITIONS=80} [2023-11-19 07:55:02,905 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -3 predicate places. [2023-11-19 07:55:02,905 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 80 transitions, 176 flow [2023-11-19 07:55:02,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:02,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:02,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:55:02,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:55:02,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:55:02,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:02,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1585752498, now seen corresponding path program 1 times [2023-11-19 07:55:02,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:02,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091880083] [2023-11-19 07:55:02,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:02,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:03,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:03,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091880083] [2023-11-19 07:55:03,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091880083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:03,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:03,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:55:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303147996] [2023-11-19 07:55:03,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:03,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:03,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:03,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 623 [2023-11-19 07:55:03,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:03,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:03,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 623 [2023-11-19 07:55:03,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:06,014 INFO L124 PetriNetUnfolderBase]: 18818/29375 cut-off events. [2023-11-19 07:55:06,014 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-11-19 07:55:06,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57538 conditions, 29375 events. 18818/29375 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 213989 event pairs, 8658 based on Foata normal form. 0/20637 useless extension candidates. Maximal degree in co-relation 57533. Up to 28039 conditions per place. [2023-11-19 07:55:06,218 INFO L140 encePairwiseOnDemand]: 618/623 looper letters, 87 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2023-11-19 07:55:06,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 100 transitions, 394 flow [2023-11-19 07:55:06,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:06,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 899 transitions. [2023-11-19 07:55:06,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4810058855002675 [2023-11-19 07:55:06,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 899 transitions. [2023-11-19 07:55:06,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 899 transitions. [2023-11-19 07:55:06,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:06,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 899 transitions. [2023-11-19 07:55:06,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:06,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:06,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:06,240 INFO L175 Difference]: Start difference. First operand has 81 places, 80 transitions, 176 flow. Second operand 3 states and 899 transitions. [2023-11-19 07:55:06,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 100 transitions, 394 flow [2023-11-19 07:55:06,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 100 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:55:06,246 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 192 flow [2023-11-19 07:55:06,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2023-11-19 07:55:06,248 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2023-11-19 07:55:06,248 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 192 flow [2023-11-19 07:55:06,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:06,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:06,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:06,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:55:06,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:55:06,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:06,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1150933512, now seen corresponding path program 1 times [2023-11-19 07:55:06,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:06,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526002817] [2023-11-19 07:55:06,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:06,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:06,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:06,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526002817] [2023-11-19 07:55:06,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526002817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:06,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:06,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:06,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807113252] [2023-11-19 07:55:06,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:06,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:06,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:06,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:06,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 623 [2023-11-19 07:55:06,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 263.5) internal successors, (1054), 4 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:06,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:06,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 623 [2023-11-19 07:55:06,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:09,744 INFO L124 PetriNetUnfolderBase]: 21656/34491 cut-off events. [2023-11-19 07:55:09,744 INFO L125 PetriNetUnfolderBase]: For 1015/1015 co-relation queries the response was YES. [2023-11-19 07:55:09,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69644 conditions, 34491 events. 21656/34491 cut-off events. For 1015/1015 co-relation queries the response was YES. Maximal size of possible extension queue 1325. Compared 263615 event pairs, 7259 based on Foata normal form. 0/26026 useless extension candidates. Maximal degree in co-relation 69637. Up to 23746 conditions per place. [2023-11-19 07:55:10,219 INFO L140 encePairwiseOnDemand]: 604/623 looper letters, 157 selfloop transitions, 14 changer transitions 0/182 dead transitions. [2023-11-19 07:55:10,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 182 transitions, 772 flow [2023-11-19 07:55:10,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:55:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1229 transitions. [2023-11-19 07:55:10,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4931781701444623 [2023-11-19 07:55:10,228 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1229 transitions. [2023-11-19 07:55:10,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1229 transitions. [2023-11-19 07:55:10,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:10,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1229 transitions. [2023-11-19 07:55:10,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 307.25) internal successors, (1229), 4 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:10,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 623.0) internal successors, (3115), 5 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:10,250 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 623.0) internal successors, (3115), 5 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:10,250 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 192 flow. Second operand 4 states and 1229 transitions. [2023-11-19 07:55:10,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 182 transitions, 772 flow [2023-11-19 07:55:10,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 182 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:55:10,259 INFO L231 Difference]: Finished difference. Result has 89 places, 94 transitions, 316 flow [2023-11-19 07:55:10,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=316, PETRI_PLACES=89, PETRI_TRANSITIONS=94} [2023-11-19 07:55:10,266 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 5 predicate places. [2023-11-19 07:55:10,268 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 94 transitions, 316 flow [2023-11-19 07:55:10,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 263.5) internal successors, (1054), 4 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:10,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:10,270 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:55:10,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:55:10,271 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:55:10,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:10,272 INFO L85 PathProgramCache]: Analyzing trace with hash -607993124, now seen corresponding path program 1 times [2023-11-19 07:55:10,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:10,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124082443] [2023-11-19 07:55:10,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:55:10,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:10,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124082443] [2023-11-19 07:55:10,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124082443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:10,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:10,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:10,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810861700] [2023-11-19 07:55:10,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:10,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:10,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:10,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:10,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:10,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 623 [2023-11-19 07:55:10,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 94 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:10,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:10,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 623 [2023-11-19 07:55:10,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:13,807 INFO L124 PetriNetUnfolderBase]: 20913/33455 cut-off events. [2023-11-19 07:55:13,807 INFO L125 PetriNetUnfolderBase]: For 8539/8539 co-relation queries the response was YES. [2023-11-19 07:55:13,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78893 conditions, 33455 events. 20913/33455 cut-off events. For 8539/8539 co-relation queries the response was YES. Maximal size of possible extension queue 1293. Compared 261636 event pairs, 4731 based on Foata normal form. 0/27883 useless extension candidates. Maximal degree in co-relation 78884. Up to 29366 conditions per place. [2023-11-19 07:55:14,074 INFO L140 encePairwiseOnDemand]: 619/623 looper letters, 120 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2023-11-19 07:55:14,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 136 transitions, 710 flow [2023-11-19 07:55:14,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 910 transitions. [2023-11-19 07:55:14,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4868913857677903 [2023-11-19 07:55:14,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 910 transitions. [2023-11-19 07:55:14,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 910 transitions. [2023-11-19 07:55:14,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:14,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 910 transitions. [2023-11-19 07:55:14,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:14,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:14,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:14,117 INFO L175 Difference]: Start difference. First operand has 89 places, 94 transitions, 316 flow. Second operand 3 states and 910 transitions. [2023-11-19 07:55:14,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 136 transitions, 710 flow [2023-11-19 07:55:14,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 136 transitions, 710 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:55:14,137 INFO L231 Difference]: Finished difference. Result has 91 places, 94 transitions, 333 flow [2023-11-19 07:55:14,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=91, PETRI_TRANSITIONS=94} [2023-11-19 07:55:14,139 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 7 predicate places. [2023-11-19 07:55:14,140 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 94 transitions, 333 flow [2023-11-19 07:55:14,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:14,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:14,141 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:55:14,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:55:14,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:55:14,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash -607993216, now seen corresponding path program 1 times [2023-11-19 07:55:14,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:14,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090736719] [2023-11-19 07:55:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:14,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:14,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:14,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:14,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090736719] [2023-11-19 07:55:14,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090736719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:14,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:14,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:14,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818248348] [2023-11-19 07:55:14,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:14,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:14,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:14,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:14,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:14,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 623 [2023-11-19 07:55:14,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 94 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:14,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:14,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 623 [2023-11-19 07:55:14,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:17,564 INFO L124 PetriNetUnfolderBase]: 20186/32349 cut-off events. [2023-11-19 07:55:17,564 INFO L125 PetriNetUnfolderBase]: For 12210/12210 co-relation queries the response was YES. [2023-11-19 07:55:17,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77201 conditions, 32349 events. 20186/32349 cut-off events. For 12210/12210 co-relation queries the response was YES. Maximal size of possible extension queue 1262. Compared 253201 event pairs, 4136 based on Foata normal form. 393/27657 useless extension candidates. Maximal degree in co-relation 77191. Up to 28214 conditions per place. [2023-11-19 07:55:17,804 INFO L140 encePairwiseOnDemand]: 620/623 looper letters, 122 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2023-11-19 07:55:17,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 135 transitions, 721 flow [2023-11-19 07:55:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:17,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:17,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2023-11-19 07:55:17,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48742643124665597 [2023-11-19 07:55:17,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2023-11-19 07:55:17,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2023-11-19 07:55:17,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:17,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2023-11-19 07:55:17,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:17,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:17,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:17,834 INFO L175 Difference]: Start difference. First operand has 91 places, 94 transitions, 333 flow. Second operand 3 states and 911 transitions. [2023-11-19 07:55:17,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 135 transitions, 721 flow [2023-11-19 07:55:17,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 135 transitions, 716 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:55:17,855 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 328 flow [2023-11-19 07:55:17,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2023-11-19 07:55:17,861 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 7 predicate places. [2023-11-19 07:55:17,861 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 328 flow [2023-11-19 07:55:17,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:17,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:17,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:17,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:55:17,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:55:17,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1639132370, now seen corresponding path program 1 times [2023-11-19 07:55:17,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:17,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656543906] [2023-11-19 07:55:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:17,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:17,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:17,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656543906] [2023-11-19 07:55:17,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656543906] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:55:17,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910841931] [2023-11-19 07:55:17,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:17,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:17,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:18,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:18,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:55:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:18,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:55:18,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:18,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:55:18,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:18,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910841931] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:55:18,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:55:18,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-19 07:55:18,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270713368] [2023-11-19 07:55:18,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:55:18,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:55:18,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:18,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:55:18,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:55:18,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 623 [2023-11-19 07:55:18,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 270.1666666666667) internal successors, (1621), 6 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:18,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:18,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 623 [2023-11-19 07:55:18,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:19,264 INFO L124 PetriNetUnfolderBase]: 1843/3497 cut-off events. [2023-11-19 07:55:19,265 INFO L125 PetriNetUnfolderBase]: For 2269/2269 co-relation queries the response was YES. [2023-11-19 07:55:19,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9280 conditions, 3497 events. 1843/3497 cut-off events. For 2269/2269 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 23852 event pairs, 48 based on Foata normal form. 413/3627 useless extension candidates. Maximal degree in co-relation 9269. Up to 2240 conditions per place. [2023-11-19 07:55:19,290 INFO L140 encePairwiseOnDemand]: 620/623 looper letters, 106 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2023-11-19 07:55:19,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 117 transitions, 630 flow [2023-11-19 07:55:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:55:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:55:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1438 transitions. [2023-11-19 07:55:19,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46163723916532906 [2023-11-19 07:55:19,297 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1438 transitions. [2023-11-19 07:55:19,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1438 transitions. [2023-11-19 07:55:19,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:19,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1438 transitions. [2023-11-19 07:55:19,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 287.6) internal successors, (1438), 5 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:19,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 623.0) internal successors, (3738), 6 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:19,313 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 623.0) internal successors, (3738), 6 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:19,313 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 328 flow. Second operand 5 states and 1438 transitions. [2023-11-19 07:55:19,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 117 transitions, 630 flow [2023-11-19 07:55:19,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 117 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:55:19,320 INFO L231 Difference]: Finished difference. Result has 68 places, 58 transitions, 223 flow [2023-11-19 07:55:19,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=68, PETRI_TRANSITIONS=58} [2023-11-19 07:55:19,322 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -16 predicate places. [2023-11-19 07:55:19,323 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 58 transitions, 223 flow [2023-11-19 07:55:19,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.1666666666667) internal successors, (1621), 6 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:19,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:19,324 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:55:19,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e941a6c9-fea2-4ab5-ad8e-683180e523c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0