./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:34:53,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:34:53,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:34:53,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:34:53,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:34:53,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:34:53,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:34:53,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:34:53,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:34:53,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:34:53,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:34:53,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:34:53,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:34:53,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:34:53,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:34:53,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:34:53,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:34:53,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:34:53,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:34:53,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:34:53,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:34:53,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:34:53,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:34:53,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:34:53,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:34:53,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:34:53,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:34:53,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:34:53,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:34:53,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:34:53,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:34:53,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:34:53,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:34:53,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:34:53,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:34:53,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:34:53,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:34:53,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:34:53,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:34:53,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:34:53,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:34:53,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:34:53,843 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:34:53,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:34:53,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:34:53,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:34:53,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:34:53,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:34:53,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:34:53,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:34:53,848 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:34:53,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:34:53,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:34:53,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:34:53,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:34:53,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:34:53,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:34:53,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:34:53,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:34:53,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:34:53,851 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:34:53,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:34:53,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:34:53,852 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:34:53,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:34:53,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:34:53,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:34:53,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:34:53,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:34:53,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:34:53,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:34:53,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:34:53,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:34:53,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:34:53,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:34:53,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:34:53,855 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:34:53,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:34:53,855 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-11-23 03:34:54,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:34:54,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:34:54,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:34:54,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:34:54,215 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:34:54,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-23 03:34:57,266 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:34:57,556 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:34:57,567 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-23 03:34:57,576 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/data/a987ebaae/f072173a129442639d22e7ce8fa0c65f/FLAG910f41675 [2022-11-23 03:34:57,595 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/data/a987ebaae/f072173a129442639d22e7ce8fa0c65f [2022-11-23 03:34:57,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:34:57,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:34:57,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:34:57,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:34:57,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:34:57,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:57" (1/1) ... [2022-11-23 03:34:57,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87b2ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:57, skipping insertion in model container [2022-11-23 03:34:57,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:57" (1/1) ... [2022-11-23 03:34:57,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:34:57,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:34:57,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-23 03:34:57,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:34:57,965 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:34:58,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-23 03:34:58,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:34:58,046 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:34:58,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58 WrapperNode [2022-11-23 03:34:58,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:34:58,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:34:58,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:34:58,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:34:58,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,142 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 479 [2022-11-23 03:34:58,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:34:58,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:34:58,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:34:58,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:34:58,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:34:58,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:34:58,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:34:58,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:34:58,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (1/1) ... [2022-11-23 03:34:58,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:34:58,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:34:58,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:34:58,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:34:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:34:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:34:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:34:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:34:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 03:34:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 03:34:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 03:34:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 03:34:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 03:34:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 03:34:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:34:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:34:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:34:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:34:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:34:58,303 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:34:58,497 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:34:58,499 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:34:59,591 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:34:59,612 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:34:59,613 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 03:34:59,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:59 BoogieIcfgContainer [2022-11-23 03:34:59,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:34:59,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:34:59,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:34:59,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:34:59,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:34:57" (1/3) ... [2022-11-23 03:34:59,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698f4bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:59, skipping insertion in model container [2022-11-23 03:34:59,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:58" (2/3) ... [2022-11-23 03:34:59,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698f4bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:59, skipping insertion in model container [2022-11-23 03:34:59,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:59" (3/3) ... [2022-11-23 03:34:59,628 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-11-23 03:34:59,638 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:34:59,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:34:59,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-23 03:34:59,651 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:34:59,794 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 03:34:59,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 620 places, 657 transitions, 1338 flow [2022-11-23 03:35:00,213 INFO L130 PetriNetUnfolder]: 47/654 cut-off events. [2022-11-23 03:35:00,214 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:35:00,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 654 events. 47/654 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1082 event pairs, 0 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 551. Up to 2 conditions per place. [2022-11-23 03:35:00,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 620 places, 657 transitions, 1338 flow [2022-11-23 03:35:00,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 633 transitions, 1281 flow [2022-11-23 03:35:00,247 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:35:00,273 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 633 transitions, 1281 flow [2022-11-23 03:35:00,277 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 633 transitions, 1281 flow [2022-11-23 03:35:00,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 633 transitions, 1281 flow [2022-11-23 03:35:00,530 INFO L130 PetriNetUnfolder]: 46/633 cut-off events. [2022-11-23 03:35:00,530 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:35:00,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 633 events. 46/633 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1079 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 551. Up to 2 conditions per place. [2022-11-23 03:35:00,556 INFO L119 LiptonReduction]: Number of co-enabled transitions 40128 [2022-11-23 03:35:39,733 INFO L134 LiptonReduction]: Checked pairs total: 49598 [2022-11-23 03:35:39,734 INFO L136 LiptonReduction]: Total number of compositions: 804 [2022-11-23 03:35:39,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:35:39,757 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1eaac4d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:35:39,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-23 03:35:39,758 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 03:35:39,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:35:39,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:35:39,759 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 03:35:39,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:35:39,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:39,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2584, now seen corresponding path program 1 times [2022-11-23 03:35:39,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:39,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284688789] [2022-11-23 03:35:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:39,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:39,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:39,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284688789] [2022-11-23 03:35:39,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284688789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:39,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:39,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 03:35:39,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348999090] [2022-11-23 03:35:39,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:39,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:35:39,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:35:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:35:39,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 1461 [2022-11-23 03:35:39,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 179 flow. Second operand has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:39,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:35:39,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 1461 [2022-11-23 03:35:39,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:35:41,418 INFO L130 PetriNetUnfolder]: 4475/6364 cut-off events. [2022-11-23 03:35:41,418 INFO L131 PetriNetUnfolder]: For 323/323 co-relation queries the response was YES. [2022-11-23 03:35:41,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13071 conditions, 6364 events. 4475/6364 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 30312 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12104. Up to 6365 conditions per place. [2022-11-23 03:35:41,486 INFO L137 encePairwiseOnDemand]: 1453/1461 looper letters, 74 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2022-11-23 03:35:41,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 74 transitions, 311 flow [2022-11-23 03:35:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:35:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:35:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1324 transitions. [2022-11-23 03:35:41,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4531143052703628 [2022-11-23 03:35:41,511 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1324 transitions. [2022-11-23 03:35:41,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1324 transitions. [2022-11-23 03:35:41,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:35:41,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1324 transitions. [2022-11-23 03:35:41,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 662.0) internal successors, (1324), 2 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:41,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1461.0) internal successors, (4383), 3 states have internal predecessors, (4383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:41,543 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1461.0) internal successors, (4383), 3 states have internal predecessors, (4383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:41,545 INFO L175 Difference]: Start difference. First operand has 82 places, 82 transitions, 179 flow. Second operand 2 states and 1324 transitions. [2022-11-23 03:35:41,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 74 transitions, 311 flow [2022-11-23 03:35:41,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 74 transitions, 302 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-23 03:35:41,555 INFO L231 Difference]: Finished difference. Result has 70 places, 74 transitions, 154 flow [2022-11-23 03:35:41,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=70, PETRI_TRANSITIONS=74} [2022-11-23 03:35:41,561 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2022-11-23 03:35:41,561 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 74 transitions, 154 flow [2022-11-23 03:35:41,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:41,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:35:41,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:35:41,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:35:41,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:35:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:41,579 INFO L85 PathProgramCache]: Analyzing trace with hash 82472, now seen corresponding path program 1 times [2022-11-23 03:35:41,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:41,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142169984] [2022-11-23 03:35:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:41,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:41,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:41,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142169984] [2022-11-23 03:35:41,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142169984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:41,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:41,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:35:41,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046462307] [2022-11-23 03:35:41,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:41,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:41,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:41,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:41,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:41,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-23 03:35:41,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 74 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:41,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:35:41,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-23 03:35:41,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:35:43,178 INFO L130 PetriNetUnfolder]: 4475/6362 cut-off events. [2022-11-23 03:35:43,179 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-23 03:35:43,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12981 conditions, 6362 events. 4475/6362 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 30342 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12978. Up to 6362 conditions per place. [2022-11-23 03:35:43,222 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 71 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2022-11-23 03:35:43,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 294 flow [2022-11-23 03:35:43,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:35:43,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1913 transitions. [2022-11-23 03:35:43,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43645904631530913 [2022-11-23 03:35:43,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1913 transitions. [2022-11-23 03:35:43,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1913 transitions. [2022-11-23 03:35:43,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:35:43,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1913 transitions. [2022-11-23 03:35:43,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:43,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:43,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:43,249 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 154 flow. Second operand 3 states and 1913 transitions. [2022-11-23 03:35:43,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 294 flow [2022-11-23 03:35:43,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 72 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:35:43,253 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 152 flow [2022-11-23 03:35:43,253 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=70, PETRI_TRANSITIONS=72} [2022-11-23 03:35:43,254 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2022-11-23 03:35:43,254 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 152 flow [2022-11-23 03:35:43,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:43,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:35:43,257 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:35:43,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:35:43,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:35:43,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:43,261 INFO L85 PathProgramCache]: Analyzing trace with hash 82349, now seen corresponding path program 1 times [2022-11-23 03:35:43,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:43,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006231011] [2022-11-23 03:35:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:43,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:43,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:43,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006231011] [2022-11-23 03:35:43,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006231011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:43,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:43,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:35:43,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056051506] [2022-11-23 03:35:43,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:43,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:43,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:43,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:43,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:43,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-23 03:35:43,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:43,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:35:43,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-23 03:35:43,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:35:46,252 INFO L130 PetriNetUnfolder]: 8949/12717 cut-off events. [2022-11-23 03:35:46,253 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-23 03:35:46,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25947 conditions, 12717 events. 8949/12717 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 67866 event pairs, 7650 based on Foata normal form. 0/6679 useless extension candidates. Maximal degree in co-relation 25943. Up to 6363 conditions per place. [2022-11-23 03:35:46,341 INFO L137 encePairwiseOnDemand]: 1449/1461 looper letters, 131 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2022-11-23 03:35:46,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 137 transitions, 562 flow [2022-11-23 03:35:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:46,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:35:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1979 transitions. [2022-11-23 03:35:46,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4515172256445357 [2022-11-23 03:35:46,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1979 transitions. [2022-11-23 03:35:46,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1979 transitions. [2022-11-23 03:35:46,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:35:46,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1979 transitions. [2022-11-23 03:35:46,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.6666666666666) internal successors, (1979), 3 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:46,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:46,369 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:46,370 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 152 flow. Second operand 3 states and 1979 transitions. [2022-11-23 03:35:46,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 137 transitions, 562 flow [2022-11-23 03:35:46,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 137 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:35:46,376 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 207 flow [2022-11-23 03:35:46,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2022-11-23 03:35:46,379 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2022-11-23 03:35:46,379 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 207 flow [2022-11-23 03:35:46,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:46,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:35:46,381 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:35:46,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:35:46,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:35:46,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:46,383 INFO L85 PathProgramCache]: Analyzing trace with hash 82470, now seen corresponding path program 1 times [2022-11-23 03:35:46,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:46,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594986654] [2022-11-23 03:35:46,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:46,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:46,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:46,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594986654] [2022-11-23 03:35:46,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594986654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:46,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:46,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:35:46,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039510974] [2022-11-23 03:35:46,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:46,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:46,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:46,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:46,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-23 03:35:46,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:46,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:35:46,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-23 03:35:46,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:35:49,061 INFO L130 PetriNetUnfolder]: 8949/12713 cut-off events. [2022-11-23 03:35:49,061 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-23 03:35:49,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25963 conditions, 12713 events. 8949/12713 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 67718 event pairs, 7650 based on Foata normal form. 2/6689 useless extension candidates. Maximal degree in co-relation 25958. Up to 12713 conditions per place. [2022-11-23 03:35:49,134 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 74 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2022-11-23 03:35:49,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 75 transitions, 353 flow [2022-11-23 03:35:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:35:49,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1917 transitions. [2022-11-23 03:35:49,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43737166324435317 [2022-11-23 03:35:49,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1917 transitions. [2022-11-23 03:35:49,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1917 transitions. [2022-11-23 03:35:49,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:35:49,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1917 transitions. [2022-11-23 03:35:49,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 639.0) internal successors, (1917), 3 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:49,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:49,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:49,158 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 207 flow. Second operand 3 states and 1917 transitions. [2022-11-23 03:35:49,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 75 transitions, 353 flow [2022-11-23 03:35:49,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 75 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:35:49,160 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 193 flow [2022-11-23 03:35:49,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2022-11-23 03:35:49,162 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2022-11-23 03:35:49,162 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 193 flow [2022-11-23 03:35:49,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:49,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:35:49,163 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:35:49,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:35:49,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:35:49,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:49,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2557203, now seen corresponding path program 1 times [2022-11-23 03:35:49,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:49,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378643774] [2022-11-23 03:35:49,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:49,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:49,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:49,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378643774] [2022-11-23 03:35:49,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378643774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:49,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:49,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:35:49,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399772436] [2022-11-23 03:35:49,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:49,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:49,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:49,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:49,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-23 03:35:49,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:49,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:35:49,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-23 03:35:49,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:35:51,319 INFO L130 PetriNetUnfolder]: 8949/12710 cut-off events. [2022-11-23 03:35:51,320 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-23 03:35:51,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25949 conditions, 12710 events. 8949/12710 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 67691 event pairs, 7650 based on Foata normal form. 0/6683 useless extension candidates. Maximal degree in co-relation 25944. Up to 12710 conditions per place. [2022-11-23 03:35:51,407 INFO L137 encePairwiseOnDemand]: 1457/1461 looper letters, 71 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2022-11-23 03:35:51,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 325 flow [2022-11-23 03:35:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:35:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:35:51,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1906 transitions. [2022-11-23 03:35:51,415 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43486196668948207 [2022-11-23 03:35:51,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1906 transitions. [2022-11-23 03:35:51,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1906 transitions. [2022-11-23 03:35:51,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:35:51,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1906 transitions. [2022-11-23 03:35:51,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,435 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 193 flow. Second operand 3 states and 1906 transitions. [2022-11-23 03:35:51,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 325 flow [2022-11-23 03:35:51,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:35:51,438 INFO L231 Difference]: Finished difference. Result has 69 places, 72 transitions, 182 flow [2022-11-23 03:35:51,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=69, PETRI_TRANSITIONS=72} [2022-11-23 03:35:51,441 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2022-11-23 03:35:51,441 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 72 transitions, 182 flow [2022-11-23 03:35:51,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,442 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:35:51,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:35:51,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:35:51,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:35:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:51,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2557202, now seen corresponding path program 1 times [2022-11-23 03:35:51,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:51,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863638293] [2022-11-23 03:35:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:51,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:51,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:51,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:51,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863638293] [2022-11-23 03:35:51,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863638293] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:35:51,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729495929] [2022-11-23 03:35:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:51,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:51,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:35:51,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:35:51,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:35:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:51,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:35:51,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:35:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:51,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:35:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:51,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729495929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:35:51,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:35:51,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-23 03:35:51,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830230176] [2022-11-23 03:35:51,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:35:51,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:35:51,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:51,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:35:51,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:35:51,943 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-23 03:35:51,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 72 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 613.1428571428571) internal successors, (4292), 7 states have internal predecessors, (4292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:51,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:35:51,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-23 03:35:51,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:35:56,536 INFO L130 PetriNetUnfolder]: 22371/31769 cut-off events. [2022-11-23 03:35:56,536 INFO L131 PetriNetUnfolder]: For 315/315 co-relation queries the response was YES. [2022-11-23 03:35:56,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64845 conditions, 31769 events. 22371/31769 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191585 event pairs, 19125 based on Foata normal form. 0/16706 useless extension candidates. Maximal degree in co-relation 64840. Up to 6359 conditions per place. [2022-11-23 03:35:56,709 INFO L137 encePairwiseOnDemand]: 1452/1461 looper letters, 298 selfloop transitions, 21 changer transitions 0/319 dead transitions. [2022-11-23 03:35:56,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 319 transitions, 1368 flow [2022-11-23 03:35:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:35:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:35:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4000 transitions. [2022-11-23 03:35:56,718 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4563084645220169 [2022-11-23 03:35:56,719 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4000 transitions. [2022-11-23 03:35:56,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4000 transitions. [2022-11-23 03:35:56,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:35:56,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4000 transitions. [2022-11-23 03:35:56,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 666.6666666666666) internal successors, (4000), 6 states have internal predecessors, (4000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:56,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1461.0) internal successors, (10227), 7 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:56,744 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1461.0) internal successors, (10227), 7 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:56,745 INFO L175 Difference]: Start difference. First operand has 69 places, 72 transitions, 182 flow. Second operand 6 states and 4000 transitions. [2022-11-23 03:35:56,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 319 transitions, 1368 flow [2022-11-23 03:35:56,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 319 transitions, 1367 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:35:56,752 INFO L231 Difference]: Finished difference. Result has 76 places, 87 transitions, 331 flow [2022-11-23 03:35:56,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=76, PETRI_TRANSITIONS=87} [2022-11-23 03:35:56,756 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -6 predicate places. [2022-11-23 03:35:56,756 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 87 transitions, 331 flow [2022-11-23 03:35:56,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 613.1428571428571) internal successors, (4292), 7 states have internal predecessors, (4292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:56,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:35:56,758 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:35:56,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:35:56,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:35:56,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:35:56,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:35:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2561141, now seen corresponding path program 1 times [2022-11-23 03:35:56,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:35:56,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203375120] [2022-11-23 03:35:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:35:56,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:35:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:35:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:35:57,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:35:57,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203375120] [2022-11-23 03:35:57,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203375120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:35:57,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:35:57,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:35:57,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342419366] [2022-11-23 03:35:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:35:57,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:35:57,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:35:57,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:35:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:35:57,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-23 03:35:57,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 87 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:35:57,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:35:57,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-23 03:35:57,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:36:01,566 INFO L130 PetriNetUnfolder]: 22371/31759 cut-off events. [2022-11-23 03:36:01,566 INFO L131 PetriNetUnfolder]: For 320/320 co-relation queries the response was YES. [2022-11-23 03:36:01,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64876 conditions, 31759 events. 22371/31759 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191502 event pairs, 19125 based on Foata normal form. 0/16715 useless extension candidates. Maximal degree in co-relation 64868. Up to 31759 conditions per place. [2022-11-23 03:36:01,758 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 84 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2022-11-23 03:36:01,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 85 transitions, 497 flow [2022-11-23 03:36:01,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:36:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:36:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1912 transitions. [2022-11-23 03:36:01,764 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43623089208304816 [2022-11-23 03:36:01,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1912 transitions. [2022-11-23 03:36:01,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1912 transitions. [2022-11-23 03:36:01,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:36:01,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1912 transitions. [2022-11-23 03:36:01,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:01,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:01,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:01,781 INFO L175 Difference]: Start difference. First operand has 76 places, 87 transitions, 331 flow. Second operand 3 states and 1912 transitions. [2022-11-23 03:36:01,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 85 transitions, 497 flow [2022-11-23 03:36:01,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 85 transitions, 467 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-23 03:36:01,785 INFO L231 Difference]: Finished difference. Result has 75 places, 85 transitions, 299 flow [2022-11-23 03:36:01,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=75, PETRI_TRANSITIONS=85} [2022-11-23 03:36:01,786 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -7 predicate places. [2022-11-23 03:36:01,786 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 299 flow [2022-11-23 03:36:01,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:01,787 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:36:01,787 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:36:01,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:36:01,787 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:36:01,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:01,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2561191, now seen corresponding path program 1 times [2022-11-23 03:36:01,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:01,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537145233] [2022-11-23 03:36:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:01,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:01,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:01,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537145233] [2022-11-23 03:36:01,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537145233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:36:01,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:36:01,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:36:01,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317645035] [2022-11-23 03:36:01,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:36:01,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:36:01,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:01,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:36:01,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:36:01,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-23 03:36:01,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 85 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:01,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:36:01,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-23 03:36:01,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:36:06,358 INFO L130 PetriNetUnfolder]: 22371/31749 cut-off events. [2022-11-23 03:36:06,359 INFO L131 PetriNetUnfolder]: For 324/324 co-relation queries the response was YES. [2022-11-23 03:36:06,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64840 conditions, 31749 events. 22371/31749 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191441 event pairs, 19125 based on Foata normal form. 5/16717 useless extension candidates. Maximal degree in co-relation 64831. Up to 31749 conditions per place. [2022-11-23 03:36:06,528 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 82 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2022-11-23 03:36:06,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 83 transitions, 461 flow [2022-11-23 03:36:06,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:36:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:36:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1904 transitions. [2022-11-23 03:36:06,533 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4344056582249601 [2022-11-23 03:36:06,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1904 transitions. [2022-11-23 03:36:06,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1904 transitions. [2022-11-23 03:36:06,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:36:06,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1904 transitions. [2022-11-23 03:36:06,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 634.6666666666666) internal successors, (1904), 3 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:06,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:06,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:06,547 INFO L175 Difference]: Start difference. First operand has 75 places, 85 transitions, 299 flow. Second operand 3 states and 1904 transitions. [2022-11-23 03:36:06,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 83 transitions, 461 flow [2022-11-23 03:36:06,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 83 transitions, 460 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:36:06,550 INFO L231 Difference]: Finished difference. Result has 74 places, 83 transitions, 296 flow [2022-11-23 03:36:06,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=74, PETRI_TRANSITIONS=83} [2022-11-23 03:36:06,551 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2022-11-23 03:36:06,551 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 83 transitions, 296 flow [2022-11-23 03:36:06,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:06,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:36:06,552 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:36:06,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:36:06,553 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:36:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:06,553 INFO L85 PathProgramCache]: Analyzing trace with hash 79402964, now seen corresponding path program 1 times [2022-11-23 03:36:06,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:06,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823279827] [2022-11-23 03:36:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:06,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:06,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:06,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:06,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823279827] [2022-11-23 03:36:06,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823279827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:36:06,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:36:06,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:36:06,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141302775] [2022-11-23 03:36:06,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:36:06,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:36:06,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:06,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:36:06,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:36:06,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-23 03:36:06,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 83 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:06,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:36:06,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-23 03:36:06,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:36:10,277 INFO L130 PetriNetUnfolder]: 22371/31744 cut-off events. [2022-11-23 03:36:10,277 INFO L131 PetriNetUnfolder]: For 324/324 co-relation queries the response was YES. [2022-11-23 03:36:10,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64831 conditions, 31744 events. 22371/31744 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191380 event pairs, 19125 based on Foata normal form. 0/16712 useless extension candidates. Maximal degree in co-relation 64822. Up to 31744 conditions per place. [2022-11-23 03:36:10,435 INFO L137 encePairwiseOnDemand]: 1459/1461 looper letters, 81 selfloop transitions, 1 changer transitions 0/82 dead transitions. [2022-11-23 03:36:10,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 82 transitions, 458 flow [2022-11-23 03:36:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:36:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:36:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1902 transitions. [2022-11-23 03:36:10,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43394934976043803 [2022-11-23 03:36:10,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1902 transitions. [2022-11-23 03:36:10,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1902 transitions. [2022-11-23 03:36:10,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:36:10,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1902 transitions. [2022-11-23 03:36:10,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 634.0) internal successors, (1902), 3 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:10,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:10,471 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:10,472 INFO L175 Difference]: Start difference. First operand has 74 places, 83 transitions, 296 flow. Second operand 3 states and 1902 transitions. [2022-11-23 03:36:10,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 82 transitions, 458 flow [2022-11-23 03:36:10,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 82 transitions, 457 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:36:10,475 INFO L231 Difference]: Finished difference. Result has 74 places, 82 transitions, 295 flow [2022-11-23 03:36:10,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=74, PETRI_TRANSITIONS=82} [2022-11-23 03:36:10,477 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2022-11-23 03:36:10,478 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 82 transitions, 295 flow [2022-11-23 03:36:10,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:10,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:36:10,479 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:36:10,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:36:10,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:36:10,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:10,479 INFO L85 PathProgramCache]: Analyzing trace with hash 79402963, now seen corresponding path program 1 times [2022-11-23 03:36:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:10,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967240827] [2022-11-23 03:36:10,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:10,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:10,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967240827] [2022-11-23 03:36:10,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967240827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:36:10,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:36:10,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:36:10,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922982349] [2022-11-23 03:36:10,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:36:10,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:36:10,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:10,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:36:10,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:36:10,584 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-23 03:36:10,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 82 transitions, 295 flow. Second operand has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:10,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:36:10,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-23 03:36:10,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:36:14,604 INFO L130 PetriNetUnfolder]: 22371/31739 cut-off events. [2022-11-23 03:36:14,604 INFO L131 PetriNetUnfolder]: For 324/324 co-relation queries the response was YES. [2022-11-23 03:36:14,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64822 conditions, 31739 events. 22371/31739 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191302 event pairs, 19125 based on Foata normal form. 0/16712 useless extension candidates. Maximal degree in co-relation 64813. Up to 31739 conditions per place. [2022-11-23 03:36:14,768 INFO L137 encePairwiseOnDemand]: 1459/1461 looper letters, 80 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2022-11-23 03:36:14,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 81 transitions, 455 flow [2022-11-23 03:36:14,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:36:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:36:14,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1907 transitions. [2022-11-23 03:36:14,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4350901209217431 [2022-11-23 03:36:14,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1907 transitions. [2022-11-23 03:36:14,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1907 transitions. [2022-11-23 03:36:14,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:36:14,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1907 transitions. [2022-11-23 03:36:14,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.6666666666666) internal successors, (1907), 3 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:14,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:14,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:14,790 INFO L175 Difference]: Start difference. First operand has 74 places, 82 transitions, 295 flow. Second operand 3 states and 1907 transitions. [2022-11-23 03:36:14,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 81 transitions, 455 flow [2022-11-23 03:36:14,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 454 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:36:14,792 INFO L231 Difference]: Finished difference. Result has 74 places, 81 transitions, 294 flow [2022-11-23 03:36:14,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=74, PETRI_TRANSITIONS=81} [2022-11-23 03:36:14,793 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2022-11-23 03:36:14,793 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 81 transitions, 294 flow [2022-11-23 03:36:14,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:14,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:36:14,795 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:36:14,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:36:14,795 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:36:14,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1833468172, now seen corresponding path program 1 times [2022-11-23 03:36:14,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:14,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083207188] [2022-11-23 03:36:14,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:14,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:14,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:14,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083207188] [2022-11-23 03:36:14,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083207188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:36:14,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:36:14,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:36:14,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53628091] [2022-11-23 03:36:14,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:36:14,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:36:14,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:14,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:36:14,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:36:14,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-23 03:36:14,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 81 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:14,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:36:14,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-23 03:36:14,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:36:24,224 INFO L130 PetriNetUnfolder]: 44726/63414 cut-off events. [2022-11-23 03:36:24,224 INFO L131 PetriNetUnfolder]: For 639/639 co-relation queries the response was YES. [2022-11-23 03:36:24,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129443 conditions, 63414 events. 44726/63414 cut-off events. For 639/639 co-relation queries the response was YES. Maximal size of possible extension queue 2418. Compared 418414 event pairs, 38250 based on Foata normal form. 0/33392 useless extension candidates. Maximal degree in co-relation 129434. Up to 31740 conditions per place. [2022-11-23 03:36:24,567 INFO L137 encePairwiseOnDemand]: 1449/1461 looper letters, 120 selfloop transitions, 6 changer transitions 0/126 dead transitions. [2022-11-23 03:36:24,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 126 transitions, 642 flow [2022-11-23 03:36:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:36:24,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:36:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1948 transitions. [2022-11-23 03:36:24,573 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2022-11-23 03:36:24,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1948 transitions. [2022-11-23 03:36:24,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1948 transitions. [2022-11-23 03:36:24,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:36:24,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1948 transitions. [2022-11-23 03:36:24,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:24,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:24,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:24,586 INFO L175 Difference]: Start difference. First operand has 74 places, 81 transitions, 294 flow. Second operand 3 states and 1948 transitions. [2022-11-23 03:36:24,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 126 transitions, 642 flow [2022-11-23 03:36:24,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 126 transitions, 641 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:36:24,589 INFO L231 Difference]: Finished difference. Result has 77 places, 86 transitions, 349 flow [2022-11-23 03:36:24,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=77, PETRI_TRANSITIONS=86} [2022-11-23 03:36:24,590 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -5 predicate places. [2022-11-23 03:36:24,590 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 86 transitions, 349 flow [2022-11-23 03:36:24,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:24,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:36:24,591 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:36:24,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 03:36:24,591 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:36:24,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:36:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1002933381, now seen corresponding path program 1 times [2022-11-23 03:36:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:36:24,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659860110] [2022-11-23 03:36:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:24,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:36:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:36:24,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:36:24,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659860110] [2022-11-23 03:36:24,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659860110] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:36:24,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468354219] [2022-11-23 03:36:24,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:36:24,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:36:24,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:36:24,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:36:24,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b6d6e-92b1-46fe-aabf-64f811f6a6b8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:36:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:36:24,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:36:24,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:36:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:36:24,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:36:24,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468354219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:36:24,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:36:24,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-23 03:36:24,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830481549] [2022-11-23 03:36:24,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:36:24,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:36:24,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:36:24,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:36:24,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:36:24,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 609 out of 1461 [2022-11-23 03:36:24,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 86 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 611.0) internal successors, (1833), 3 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:36:24,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:36:24,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 609 of 1461 [2022-11-23 03:36:24,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand