./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a --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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- 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-b5237d8 [2022-11-21 16:24:03,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:24:03,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:24:03,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:24:03,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:24:03,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:24:03,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:24:03,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:24:03,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:24:03,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:24:03,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:24:03,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:24:03,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:24:03,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:24:03,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:24:03,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:24:03,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:24:03,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:24:03,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:24:03,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:24:03,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:24:03,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:24:03,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:24:03,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:24:03,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:24:03,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:24:03,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:24:03,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:24:03,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:24:03,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:24:03,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:24:03,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:24:03,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:24:03,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:24:03,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:24:03,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:24:03,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:24:03,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:24:03,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:24:03,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:24:03,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:24:03,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:24:03,827 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:24:03,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:24:03,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:24:03,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:24:03,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:24:03,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:24:03,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:24:03,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:24:03,831 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:24:03,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:24:03,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:24:03,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:24:03,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:24:03,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:24:03,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:24:03,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:24:03,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:24:03,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:24:03,835 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:24:03,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:24:03,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:24:03,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:24:03,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:24:03,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:24:03,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:24:03,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:24:03,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:03,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:24:03,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:24:03,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:24:03,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:24:03,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:24:03,840 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:24:03,840 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:24:03,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:24:03,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2022-11-21 16:24:04,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:24:04,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:24:04,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:24:04,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:24:04,176 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:24:04,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-11-21 16:24:07,118 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:24:07,384 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:24:07,385 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-11-21 16:24:07,395 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/data/bc604e66b/59cdaf5b4a15445889268efc768d53e8/FLAGb378cfe00 [2022-11-21 16:24:07,410 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/data/bc604e66b/59cdaf5b4a15445889268efc768d53e8 [2022-11-21 16:24:07,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:24:07,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:24:07,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:07,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:24:07,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:24:07,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:07,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae039d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07, skipping insertion in model container [2022-11-21 16:24:07,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:07,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:24:07,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:24:07,619 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_74c3a098-4331-4862-85f0-c465f839103c/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-11-21 16:24:07,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:07,823 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:24:07,835 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_74c3a098-4331-4862-85f0-c465f839103c/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-11-21 16:24:07,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:07,941 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:24:07,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07 WrapperNode [2022-11-21 16:24:07,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:07,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:07,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:24:07,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:24:07,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:07,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,024 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 124 [2022-11-21 16:24:08,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:08,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:24:08,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:24:08,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:24:08,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:24:08,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:24:08,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:24:08,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:24:08,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (1/1) ... [2022-11-21 16:24:08,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:08,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:08,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:24:08,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74c3a098-4331-4862-85f0-c465f839103c/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:24:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-11-21 16:24:08,176 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-11-21 16:24:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:24:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:24:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:24:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:24:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:24:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:24:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:24:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:24:08,182 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:24:08,371 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:24:08,373 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:24:08,698 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:24:08,706 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:24:08,706 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 16:24:08,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:08 BoogieIcfgContainer [2022-11-21 16:24:08,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:24:08,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:24:08,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:24:08,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:24:08,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:24:07" (1/3) ... [2022-11-21 16:24:08,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42393d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:08, skipping insertion in model container [2022-11-21 16:24:08,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:07" (2/3) ... [2022-11-21 16:24:08,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42393d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:08, skipping insertion in model container [2022-11-21 16:24:08,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:08" (3/3) ... [2022-11-21 16:24:08,736 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-11-21 16:24:08,745 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:24:08,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:24:08,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 16:24:08,757 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:24:08,823 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:24:08,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 152 transitions, 309 flow [2022-11-21 16:24:08,928 INFO L130 PetriNetUnfolder]: 10/151 cut-off events. [2022-11-21 16:24:08,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:24:08,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 151 events. 10/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 268 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2022-11-21 16:24:08,935 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 152 transitions, 309 flow [2022-11-21 16:24:08,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 151 transitions, 305 flow [2022-11-21 16:24:08,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:24:08,958 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;@cb63c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:24:08,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-21 16:24:08,990 INFO L130 PetriNetUnfolder]: 3/97 cut-off events. [2022-11-21 16:24:08,990 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:24:08,991 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:08,991 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:08,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:08,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:08,997 INFO L85 PathProgramCache]: Analyzing trace with hash 776007129, now seen corresponding path program 1 times [2022-11-21 16:24:09,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:09,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361335085] [2022-11-21 16:24:09,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:09,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:09,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:09,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361335085] [2022-11-21 16:24:09,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361335085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:09,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:09,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:24:09,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165480901] [2022-11-21 16:24:09,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:09,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:24:09,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:09,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:24:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:24:09,586 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 152 [2022-11-21 16:24:09,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:09,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:09,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 152 [2022-11-21 16:24:09,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:10,192 INFO L130 PetriNetUnfolder]: 239/1130 cut-off events. [2022-11-21 16:24:10,193 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:24:10,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1130 events. 239/1130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6925 event pairs, 65 based on Foata normal form. 98/1088 useless extension candidates. Maximal degree in co-relation 1526. Up to 238 conditions per place. [2022-11-21 16:24:10,208 INFO L137 encePairwiseOnDemand]: 134/152 looper letters, 84 selfloop transitions, 16 changer transitions 0/206 dead transitions. [2022-11-21 16:24:10,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 206 transitions, 615 flow [2022-11-21 16:24:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:24:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:24:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1238 transitions. [2022-11-21 16:24:10,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8144736842105263 [2022-11-21 16:24:10,233 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1238 transitions. [2022-11-21 16:24:10,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1238 transitions. [2022-11-21 16:24:10,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:10,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1238 transitions. [2022-11-21 16:24:10,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.8) internal successors, (1238), 10 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:10,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:10,260 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 152.0) internal successors, (1672), 11 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:10,262 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 305 flow. Second operand 10 states and 1238 transitions. [2022-11-21 16:24:10,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 206 transitions, 615 flow [2022-11-21 16:24:10,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 206 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:24:10,320 INFO L231 Difference]: Finished difference. Result has 155 places, 159 transitions, 409 flow [2022-11-21 16:24:10,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=409, PETRI_PLACES=155, PETRI_TRANSITIONS=159} [2022-11-21 16:24:10,330 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 10 predicate places. [2022-11-21 16:24:10,331 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 159 transitions, 409 flow [2022-11-21 16:24:10,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:10,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:10,333 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:10,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:24:10,333 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:10,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:10,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1713582480, now seen corresponding path program 1 times [2022-11-21 16:24:10,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:10,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082783688] [2022-11-21 16:24:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:10,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:11,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:11,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082783688] [2022-11-21 16:24:11,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082783688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:11,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:11,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 16:24:11,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760578763] [2022-11-21 16:24:11,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:11,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 16:24:11,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 16:24:11,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:24:11,285 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-21 16:24:11,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 159 transitions, 409 flow. Second operand has 16 states, 16 states have (on average 95.125) internal successors, (1522), 16 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:11,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:11,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-21 16:24:11,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:12,989 INFO L130 PetriNetUnfolder]: 558/2485 cut-off events. [2022-11-21 16:24:12,989 INFO L131 PetriNetUnfolder]: For 302/305 co-relation queries the response was YES. [2022-11-21 16:24:12,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 2485 events. 558/2485 cut-off events. For 302/305 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 17832 event pairs, 56 based on Foata normal form. 21/2271 useless extension candidates. Maximal degree in co-relation 3936. Up to 457 conditions per place. [2022-11-21 16:24:13,011 INFO L137 encePairwiseOnDemand]: 130/152 looper letters, 166 selfloop transitions, 44 changer transitions 0/300 dead transitions. [2022-11-21 16:24:13,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 300 transitions, 1212 flow [2022-11-21 16:24:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 16:24:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 16:24:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2139 transitions. [2022-11-21 16:24:13,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6701127819548872 [2022-11-21 16:24:13,018 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2139 transitions. [2022-11-21 16:24:13,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2139 transitions. [2022-11-21 16:24:13,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:13,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2139 transitions. [2022-11-21 16:24:13,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 101.85714285714286) internal successors, (2139), 21 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:13,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:13,035 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:13,035 INFO L175 Difference]: Start difference. First operand has 155 places, 159 transitions, 409 flow. Second operand 21 states and 2139 transitions. [2022-11-21 16:24:13,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 300 transitions, 1212 flow [2022-11-21 16:24:13,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 300 transitions, 1212 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:24:13,091 INFO L231 Difference]: Finished difference. Result has 187 places, 193 transitions, 754 flow [2022-11-21 16:24:13,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=754, PETRI_PLACES=187, PETRI_TRANSITIONS=193} [2022-11-21 16:24:13,092 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 42 predicate places. [2022-11-21 16:24:13,092 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 193 transitions, 754 flow [2022-11-21 16:24:13,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 95.125) internal successors, (1522), 16 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:13,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:13,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:13,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:24:13,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:13,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:13,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1057699436, now seen corresponding path program 1 times [2022-11-21 16:24:13,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:13,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311668560] [2022-11-21 16:24:13,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:13,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:13,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:13,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311668560] [2022-11-21 16:24:13,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311668560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:13,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:13,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 16:24:13,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931950525] [2022-11-21 16:24:13,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:13,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:24:13,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:13,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:24:13,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:24:13,676 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 152 [2022-11-21 16:24:13,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 193 transitions, 754 flow. Second operand has 15 states, 15 states have (on average 91.46666666666667) internal successors, (1372), 15 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:13,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:13,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 152 [2022-11-21 16:24:13,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:15,048 INFO L130 PetriNetUnfolder]: 533/2967 cut-off events. [2022-11-21 16:24:15,049 INFO L131 PetriNetUnfolder]: For 1807/1878 co-relation queries the response was YES. [2022-11-21 16:24:15,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5806 conditions, 2967 events. 533/2967 cut-off events. For 1807/1878 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 22297 event pairs, 134 based on Foata normal form. 64/2726 useless extension candidates. Maximal degree in co-relation 5781. Up to 762 conditions per place. [2022-11-21 16:24:15,071 INFO L137 encePairwiseOnDemand]: 137/152 looper letters, 124 selfloop transitions, 24 changer transitions 27/278 dead transitions. [2022-11-21 16:24:15,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 278 transitions, 1380 flow [2022-11-21 16:24:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 16:24:15,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 16:24:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2026 transitions. [2022-11-21 16:24:15,077 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6347117794486216 [2022-11-21 16:24:15,077 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2026 transitions. [2022-11-21 16:24:15,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2026 transitions. [2022-11-21 16:24:15,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:15,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2026 transitions. [2022-11-21 16:24:15,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.47619047619048) internal successors, (2026), 21 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,091 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 152.0) internal successors, (3344), 22 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,091 INFO L175 Difference]: Start difference. First operand has 187 places, 193 transitions, 754 flow. Second operand 21 states and 2026 transitions. [2022-11-21 16:24:15,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 278 transitions, 1380 flow [2022-11-21 16:24:15,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 278 transitions, 1354 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-21 16:24:15,119 INFO L231 Difference]: Finished difference. Result has 210 places, 195 transitions, 794 flow [2022-11-21 16:24:15,119 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=794, PETRI_PLACES=210, PETRI_TRANSITIONS=195} [2022-11-21 16:24:15,124 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 65 predicate places. [2022-11-21 16:24:15,124 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 195 transitions, 794 flow [2022-11-21 16:24:15,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 91.46666666666667) internal successors, (1372), 15 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:15,126 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:15,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:24:15,127 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:15,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1529392297, now seen corresponding path program 1 times [2022-11-21 16:24:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:15,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755682588] [2022-11-21 16:24:15,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:15,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:15,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:15,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755682588] [2022-11-21 16:24:15,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755682588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:15,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:15,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:15,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687020850] [2022-11-21 16:24:15,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:15,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:24:15,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:15,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:24:15,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:24:15,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 152 [2022-11-21 16:24:15,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 195 transitions, 794 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:15,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 152 [2022-11-21 16:24:15,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:15,545 INFO L130 PetriNetUnfolder]: 104/1436 cut-off events. [2022-11-21 16:24:15,546 INFO L131 PetriNetUnfolder]: For 463/495 co-relation queries the response was YES. [2022-11-21 16:24:15,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 1436 events. 104/1436 cut-off events. For 463/495 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8907 event pairs, 2 based on Foata normal form. 9/1352 useless extension candidates. Maximal degree in co-relation 2328. Up to 135 conditions per place. [2022-11-21 16:24:15,560 INFO L137 encePairwiseOnDemand]: 146/152 looper letters, 15 selfloop transitions, 4 changer transitions 0/202 dead transitions. [2022-11-21 16:24:15,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 202 transitions, 846 flow [2022-11-21 16:24:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:24:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:24:15,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 681 transitions. [2022-11-21 16:24:15,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8960526315789473 [2022-11-21 16:24:15,564 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 681 transitions. [2022-11-21 16:24:15,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 681 transitions. [2022-11-21 16:24:15,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:15,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 681 transitions. [2022-11-21 16:24:15,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,574 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,574 INFO L175 Difference]: Start difference. First operand has 210 places, 195 transitions, 794 flow. Second operand 5 states and 681 transitions. [2022-11-21 16:24:15,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 202 transitions, 846 flow [2022-11-21 16:24:15,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 827 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-21 16:24:15,587 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 805 flow [2022-11-21 16:24:15,587 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=805, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-11-21 16:24:15,589 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 58 predicate places. [2022-11-21 16:24:15,589 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 805 flow [2022-11-21 16:24:15,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:15,592 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:15,592 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:15,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:24:15,593 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:15,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:15,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1386784249, now seen corresponding path program 1 times [2022-11-21 16:24:15,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:15,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881241024] [2022-11-21 16:24:15,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:15,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:16,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:16,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881241024] [2022-11-21 16:24:16,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881241024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:16,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:16,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:24:16,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846965762] [2022-11-21 16:24:16,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:16,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:24:16,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:16,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:24:16,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:24:16,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-21 16:24:16,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 805 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:16,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:16,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-21 16:24:16,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:19,843 INFO L130 PetriNetUnfolder]: 2746/10326 cut-off events. [2022-11-21 16:24:19,843 INFO L131 PetriNetUnfolder]: For 8291/8472 co-relation queries the response was YES. [2022-11-21 16:24:19,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23397 conditions, 10326 events. 2746/10326 cut-off events. For 8291/8472 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 97785 event pairs, 365 based on Foata normal form. 150/10010 useless extension candidates. Maximal degree in co-relation 23306. Up to 1508 conditions per place. [2022-11-21 16:24:19,964 INFO L137 encePairwiseOnDemand]: 132/152 looper letters, 495 selfloop transitions, 161 changer transitions 0/760 dead transitions. [2022-11-21 16:24:19,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 760 transitions, 4783 flow [2022-11-21 16:24:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-21 16:24:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-21 16:24:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3815 transitions. [2022-11-21 16:24:19,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6971856725146199 [2022-11-21 16:24:19,975 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3815 transitions. [2022-11-21 16:24:19,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3815 transitions. [2022-11-21 16:24:19,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:19,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3815 transitions. [2022-11-21 16:24:19,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 105.97222222222223) internal successors, (3815), 36 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:19,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 152.0) internal successors, (5624), 37 states have internal predecessors, (5624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:19,999 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 152.0) internal successors, (5624), 37 states have internal predecessors, (5624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:20,000 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 805 flow. Second operand 36 states and 3815 transitions. [2022-11-21 16:24:20,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 760 transitions, 4783 flow [2022-11-21 16:24:20,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 760 transitions, 4781 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:24:20,132 INFO L231 Difference]: Finished difference. Result has 268 places, 374 transitions, 2573 flow [2022-11-21 16:24:20,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2573, PETRI_PLACES=268, PETRI_TRANSITIONS=374} [2022-11-21 16:24:20,136 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 123 predicate places. [2022-11-21 16:24:20,136 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 374 transitions, 2573 flow [2022-11-21 16:24:20,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:20,137 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:20,137 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:20,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:24:20,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:20,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:20,141 INFO L85 PathProgramCache]: Analyzing trace with hash 284602123, now seen corresponding path program 2 times [2022-11-21 16:24:20,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:20,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639265755] [2022-11-21 16:24:20,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:20,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:20,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:20,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:20,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639265755] [2022-11-21 16:24:20,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639265755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:20,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:20,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:24:20,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945762988] [2022-11-21 16:24:20,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:20,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:24:20,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:20,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:24:20,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:24:20,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-21 16:24:20,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 374 transitions, 2573 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:20,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:20,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-21 16:24:20,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:26,022 INFO L130 PetriNetUnfolder]: 4039/15054 cut-off events. [2022-11-21 16:24:26,022 INFO L131 PetriNetUnfolder]: For 46129/46529 co-relation queries the response was YES. [2022-11-21 16:24:26,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45823 conditions, 15054 events. 4039/15054 cut-off events. For 46129/46529 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 155309 event pairs, 577 based on Foata normal form. 258/14925 useless extension candidates. Maximal degree in co-relation 45701. Up to 3376 conditions per place. [2022-11-21 16:24:26,172 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 562 selfloop transitions, 208 changer transitions 0/874 dead transitions. [2022-11-21 16:24:26,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 874 transitions, 8017 flow [2022-11-21 16:24:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-21 16:24:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-21 16:24:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2776 transitions. [2022-11-21 16:24:26,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7024291497975709 [2022-11-21 16:24:26,182 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2776 transitions. [2022-11-21 16:24:26,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2776 transitions. [2022-11-21 16:24:26,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:26,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2776 transitions. [2022-11-21 16:24:26,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 106.76923076923077) internal successors, (2776), 26 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:26,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 152.0) internal successors, (4104), 27 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:26,202 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 152.0) internal successors, (4104), 27 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:26,202 INFO L175 Difference]: Start difference. First operand has 268 places, 374 transitions, 2573 flow. Second operand 26 states and 2776 transitions. [2022-11-21 16:24:26,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 874 transitions, 8017 flow [2022-11-21 16:24:26,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 874 transitions, 7933 flow, removed 42 selfloop flow, removed 0 redundant places. [2022-11-21 16:24:26,660 INFO L231 Difference]: Finished difference. Result has 315 places, 537 transitions, 4987 flow [2022-11-21 16:24:26,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=2519, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4987, PETRI_PLACES=315, PETRI_TRANSITIONS=537} [2022-11-21 16:24:26,665 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 170 predicate places. [2022-11-21 16:24:26,665 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 537 transitions, 4987 flow [2022-11-21 16:24:26,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:26,666 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:26,666 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:26,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:24:26,666 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:26,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash 622819631, now seen corresponding path program 3 times [2022-11-21 16:24:26,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:26,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417540957] [2022-11-21 16:24:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:26,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:26,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:26,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417540957] [2022-11-21 16:24:26,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417540957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:27,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:27,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:24:27,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156199178] [2022-11-21 16:24:27,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:27,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:24:27,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:27,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:24:27,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:24:27,005 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-21 16:24:27,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 537 transitions, 4987 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:27,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:27,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-21 16:24:27,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:37,431 INFO L130 PetriNetUnfolder]: 7958/29387 cut-off events. [2022-11-21 16:24:37,431 INFO L131 PetriNetUnfolder]: For 174417/175434 co-relation queries the response was YES. [2022-11-21 16:24:37,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105883 conditions, 29387 events. 7958/29387 cut-off events. For 174417/175434 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 338134 event pairs, 1927 based on Foata normal form. 550/29064 useless extension candidates. Maximal degree in co-relation 105739. Up to 4239 conditions per place. [2022-11-21 16:24:37,846 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 826 selfloop transitions, 454 changer transitions 0/1384 dead transitions. [2022-11-21 16:24:37,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 1384 transitions, 16532 flow [2022-11-21 16:24:37,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-21 16:24:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-21 16:24:37,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3393 transitions. [2022-11-21 16:24:37,856 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6975740131578947 [2022-11-21 16:24:37,856 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3393 transitions. [2022-11-21 16:24:37,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3393 transitions. [2022-11-21 16:24:37,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:37,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3393 transitions. [2022-11-21 16:24:37,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 106.03125) internal successors, (3393), 32 states have internal predecessors, (3393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:37,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 152.0) internal successors, (5016), 33 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:37,890 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 152.0) internal successors, (5016), 33 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:37,898 INFO L175 Difference]: Start difference. First operand has 315 places, 537 transitions, 4987 flow. Second operand 32 states and 3393 transitions. [2022-11-21 16:24:37,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 1384 transitions, 16532 flow [2022-11-21 16:24:39,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1384 transitions, 15612 flow, removed 460 selfloop flow, removed 0 redundant places. [2022-11-21 16:24:39,607 INFO L231 Difference]: Finished difference. Result has 376 places, 900 transitions, 11111 flow [2022-11-21 16:24:39,608 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=4599, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=11111, PETRI_PLACES=376, PETRI_TRANSITIONS=900} [2022-11-21 16:24:39,608 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 231 predicate places. [2022-11-21 16:24:39,608 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 900 transitions, 11111 flow [2022-11-21 16:24:39,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:39,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:39,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:39,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:24:39,610 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:24:39,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:39,610 INFO L85 PathProgramCache]: Analyzing trace with hash 402086713, now seen corresponding path program 4 times [2022-11-21 16:24:39,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:39,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090524809] [2022-11-21 16:24:39,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:39,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:39,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:39,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090524809] [2022-11-21 16:24:39,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090524809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:39,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:39,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:24:39,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267429437] [2022-11-21 16:24:39,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:39,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:24:39,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:39,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:24:39,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:24:39,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-21 16:24:39,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 900 transitions, 11111 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:39,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:39,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-21 16:24:39,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:56,258 INFO L130 PetriNetUnfolder]: 10813/40382 cut-off events. [2022-11-21 16:24:56,259 INFO L131 PetriNetUnfolder]: For 387310/388835 co-relation queries the response was YES. [2022-11-21 16:24:56,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162082 conditions, 40382 events. 10813/40382 cut-off events. For 387310/388835 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 488185 event pairs, 2550 based on Foata normal form. 694/39883 useless extension candidates. Maximal degree in co-relation 161907. Up to 4801 conditions per place. [2022-11-21 16:24:56,894 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 1134 selfloop transitions, 559 changer transitions 0/1797 dead transitions. [2022-11-21 16:24:56,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 1797 transitions, 25256 flow [2022-11-21 16:24:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-21 16:24:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-21 16:24:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2928 transitions. [2022-11-21 16:24:56,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7134502923976608 [2022-11-21 16:24:56,905 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2928 transitions. [2022-11-21 16:24:56,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2928 transitions. [2022-11-21 16:24:56,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:56,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2928 transitions. [2022-11-21 16:24:56,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 108.44444444444444) internal successors, (2928), 27 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:56,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 152.0) internal successors, (4256), 28 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:56,924 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 152.0) internal successors, (4256), 28 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:56,925 INFO L175 Difference]: Start difference. First operand has 376 places, 900 transitions, 11111 flow. Second operand 27 states and 2928 transitions. [2022-11-21 16:24:56,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 1797 transitions, 25256 flow [2022-11-21 16:25:01,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1797 transitions, 24292 flow, removed 480 selfloop flow, removed 1 redundant places. [2022-11-21 16:25:01,430 INFO L231 Difference]: Finished difference. Result has 423 places, 1243 transitions, 18121 flow [2022-11-21 16:25:01,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=10397, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=18121, PETRI_PLACES=423, PETRI_TRANSITIONS=1243} [2022-11-21 16:25:01,432 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 278 predicate places. [2022-11-21 16:25:01,432 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 1243 transitions, 18121 flow [2022-11-21 16:25:01,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:25:01,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:25:01,433 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:01,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:25:01,433 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-21 16:25:01,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:01,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1462628667, now seen corresponding path program 5 times [2022-11-21 16:25:01,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:01,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411041900] [2022-11-21 16:25:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:01,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:01,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:25:01,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:25:01,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411041900] [2022-11-21 16:25:01,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411041900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:25:01,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:25:01,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:25:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128891993] [2022-11-21 16:25:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:25:01,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:25:01,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:25:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:25:01,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:25:01,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-21 16:25:01,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 1243 transitions, 18121 flow. Second operand has 11 states, 11 states have (on average 96.27272727272727) internal successors, (1059), 11 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:25:01,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:25:01,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-21 16:25:01,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand