./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 6b4ec56b 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_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/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_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 11:50:19,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:50:19,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:50:19,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:50:19,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:50:19,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:50:19,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:50:19,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:50:19,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:50:19,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:50:19,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:50:19,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:50:19,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:50:19,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:50:19,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:50:19,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:50:19,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:50:19,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:50:19,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:50:19,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:50:19,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:50:19,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:50:19,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:50:19,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:50:19,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:50:19,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:50:19,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:50:19,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:50:19,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:50:19,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:50:19,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:50:19,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:50:19,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:50:19,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:50:19,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:50:19,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:50:19,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:50:19,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:50:19,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:50:19,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:50:19,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:50:19,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:50:19,879 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:50:19,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:50:19,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:50:19,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:50:19,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:50:19,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:50:19,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:50:19,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:50:19,882 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:50:19,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:50:19,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:50:19,883 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:50:19,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:50:19,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:50:19,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:50:19,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:50:19,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:50:19,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:50:19,884 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:50:19,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:50:19,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:50:19,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:50:19,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:50:19,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:50:19,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:50:19,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:50:19,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:50:19,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:50:19,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:50:19,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:50:19,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:50:19,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:50:19,887 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:50:19,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:50:19,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:50:19,888 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_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2022-11-20 11:50:20,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:50:20,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:50:20,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:50:20,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:50:20,296 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:50:20,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-11-20 11:50:23,367 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:50:23,695 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:50:23,699 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-11-20 11:50:23,720 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/data/15fc7316c/0318f44c20094294b39a71073cb391d0/FLAG99c755245 [2022-11-20 11:50:23,743 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/data/15fc7316c/0318f44c20094294b39a71073cb391d0 [2022-11-20 11:50:23,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:50:23,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:50:23,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:50:23,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:50:23,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:50:23,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:50:23" (1/1) ... [2022-11-20 11:50:23,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2c656b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:23, skipping insertion in model container [2022-11-20 11:50:23,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:50:23" (1/1) ... [2022-11-20 11:50:23,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:50:23,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:50:24,076 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_96df0346-da8b-4299-af13-121a158f14fd/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-11-20 11:50:24,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:50:24,402 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:50:24,423 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_96df0346-da8b-4299-af13-121a158f14fd/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-11-20 11:50:24,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:50:24,535 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:50:24,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24 WrapperNode [2022-11-20 11:50:24,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:50:24,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:50:24,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:50:24,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:50:24,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,598 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 124 [2022-11-20 11:50:24,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:50:24,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:50:24,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:50:24,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:50:24,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,630 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:50:24,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:50:24,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:50:24,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:50:24,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (1/1) ... [2022-11-20 11:50:24,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:50:24,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:50:24,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:50:24,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96df0346-da8b-4299-af13-121a158f14fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:50:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-11-20 11:50:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-11-20 11:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:50:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:50:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:50:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:50:24,733 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:50:24,870 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:50:24,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:50:25,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:50:25,223 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:50:25,223 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:50:25,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:50:25 BoogieIcfgContainer [2022-11-20 11:50:25,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:50:25,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:50:25,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:50:25,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:50:25,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:50:23" (1/3) ... [2022-11-20 11:50:25,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a7dba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:50:25, skipping insertion in model container [2022-11-20 11:50:25,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:50:24" (2/3) ... [2022-11-20 11:50:25,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a7dba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:50:25, skipping insertion in model container [2022-11-20 11:50:25,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:50:25" (3/3) ... [2022-11-20 11:50:25,238 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-11-20 11:50:25,249 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:50:25,275 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:50:25,275 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 11:50:25,275 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:50:25,421 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:50:25,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 152 transitions, 309 flow [2022-11-20 11:50:25,599 INFO L130 PetriNetUnfolder]: 10/151 cut-off events. [2022-11-20 11:50:25,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:50:25,638 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. [2022-11-20 11:50:25,640 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 152 transitions, 309 flow [2022-11-20 11:50:25,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 151 transitions, 305 flow [2022-11-20 11:50:25,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:50:25,718 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;@5e73cde3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:50:25,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-20 11:50:25,775 INFO L130 PetriNetUnfolder]: 3/97 cut-off events. [2022-11-20 11:50:25,776 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:50:25,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:25,777 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] [2022-11-20 11:50:25,778 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)] === [2022-11-20 11:50:25,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:25,786 INFO L85 PathProgramCache]: Analyzing trace with hash 776007129, now seen corresponding path program 1 times [2022-11-20 11:50:25,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:25,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613796244] [2022-11-20 11:50:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:25,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:26,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:26,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613796244] [2022-11-20 11:50:26,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613796244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:26,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:26,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:50:26,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026531470] [2022-11-20 11:50:26,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:26,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:50:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:50:26,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:50:26,507 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 152 [2022-11-20 11:50:26,515 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) [2022-11-20 11:50:26,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:26,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 152 [2022-11-20 11:50:26,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:27,198 INFO L130 PetriNetUnfolder]: 239/1130 cut-off events. [2022-11-20 11:50:27,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:50:27,204 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. [2022-11-20 11:50:27,211 INFO L137 encePairwiseOnDemand]: 134/152 looper letters, 84 selfloop transitions, 16 changer transitions 0/206 dead transitions. [2022-11-20 11:50:27,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 206 transitions, 615 flow [2022-11-20 11:50:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:50:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:50:27,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1238 transitions. [2022-11-20 11:50:27,233 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8144736842105263 [2022-11-20 11:50:27,234 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1238 transitions. [2022-11-20 11:50:27,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1238 transitions. [2022-11-20 11:50:27,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:27,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1238 transitions. [2022-11-20 11:50:27,249 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) [2022-11-20 11:50:27,260 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) [2022-11-20 11:50:27,262 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) [2022-11-20 11:50:27,264 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 305 flow. Second operand 10 states and 1238 transitions. [2022-11-20 11:50:27,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 206 transitions, 615 flow [2022-11-20 11:50:27,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 206 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:50:27,276 INFO L231 Difference]: Finished difference. Result has 155 places, 159 transitions, 409 flow [2022-11-20 11:50:27,279 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} [2022-11-20 11:50:27,285 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 10 predicate places. [2022-11-20 11:50:27,286 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 159 transitions, 409 flow [2022-11-20 11:50:27,287 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) [2022-11-20 11:50:27,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:27,289 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] [2022-11-20 11:50:27,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:50:27,289 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)] === [2022-11-20 11:50:27,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1713582480, now seen corresponding path program 1 times [2022-11-20 11:50:27,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:27,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510984951] [2022-11-20 11:50:27,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:27,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:28,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:28,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510984951] [2022-11-20 11:50:28,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510984951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:28,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:28,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 11:50:28,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120862924] [2022-11-20 11:50:28,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:28,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:50:28,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:28,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:50:28,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:50:28,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-20 11:50:28,233 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) [2022-11-20 11:50:28,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:28,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-20 11:50:28,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:30,049 INFO L130 PetriNetUnfolder]: 558/2485 cut-off events. [2022-11-20 11:50:30,049 INFO L131 PetriNetUnfolder]: For 302/305 co-relation queries the response was YES. [2022-11-20 11:50:30,059 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. [2022-11-20 11:50:30,073 INFO L137 encePairwiseOnDemand]: 130/152 looper letters, 166 selfloop transitions, 44 changer transitions 0/300 dead transitions. [2022-11-20 11:50:30,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 300 transitions, 1212 flow [2022-11-20 11:50:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:50:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:50:30,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2139 transitions. [2022-11-20 11:50:30,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6701127819548872 [2022-11-20 11:50:30,106 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2139 transitions. [2022-11-20 11:50:30,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2139 transitions. [2022-11-20 11:50:30,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:30,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2139 transitions. [2022-11-20 11:50:30,119 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) [2022-11-20 11:50:30,128 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) [2022-11-20 11:50:30,131 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) [2022-11-20 11:50:30,131 INFO L175 Difference]: Start difference. First operand has 155 places, 159 transitions, 409 flow. Second operand 21 states and 2139 transitions. [2022-11-20 11:50:30,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 300 transitions, 1212 flow [2022-11-20 11:50:30,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 300 transitions, 1212 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:50:30,144 INFO L231 Difference]: Finished difference. Result has 187 places, 193 transitions, 754 flow [2022-11-20 11:50:30,145 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} [2022-11-20 11:50:30,145 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 42 predicate places. [2022-11-20 11:50:30,146 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 193 transitions, 754 flow [2022-11-20 11:50:30,147 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) [2022-11-20 11:50:30,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:30,147 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] [2022-11-20 11:50:30,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:50:30,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:50:30,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:30,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1057699436, now seen corresponding path program 1 times [2022-11-20 11:50:30,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:30,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146065686] [2022-11-20 11:50:30,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:30,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:30,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:30,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146065686] [2022-11-20 11:50:30,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146065686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:30,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:30,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 11:50:30,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664072503] [2022-11-20 11:50:30,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:30,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 11:50:30,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:30,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 11:50:30,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:50:30,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 152 [2022-11-20 11:50:30,776 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) [2022-11-20 11:50:30,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:30,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 152 [2022-11-20 11:50:30,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:32,278 INFO L130 PetriNetUnfolder]: 533/2967 cut-off events. [2022-11-20 11:50:32,279 INFO L131 PetriNetUnfolder]: For 1807/1878 co-relation queries the response was YES. [2022-11-20 11:50:32,297 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. [2022-11-20 11:50:32,310 INFO L137 encePairwiseOnDemand]: 137/152 looper letters, 124 selfloop transitions, 24 changer transitions 27/278 dead transitions. [2022-11-20 11:50:32,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 278 transitions, 1380 flow [2022-11-20 11:50:32,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:50:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:50:32,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2026 transitions. [2022-11-20 11:50:32,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6347117794486216 [2022-11-20 11:50:32,317 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2026 transitions. [2022-11-20 11:50:32,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2026 transitions. [2022-11-20 11:50:32,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:32,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2026 transitions. [2022-11-20 11:50:32,325 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) [2022-11-20 11:50:32,332 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) [2022-11-20 11:50:32,334 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) [2022-11-20 11:50:32,334 INFO L175 Difference]: Start difference. First operand has 187 places, 193 transitions, 754 flow. Second operand 21 states and 2026 transitions. [2022-11-20 11:50:32,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 278 transitions, 1380 flow [2022-11-20 11:50:32,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 278 transitions, 1354 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-20 11:50:32,357 INFO L231 Difference]: Finished difference. Result has 210 places, 195 transitions, 794 flow [2022-11-20 11:50:32,358 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} [2022-11-20 11:50:32,360 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 65 predicate places. [2022-11-20 11:50:32,361 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 195 transitions, 794 flow [2022-11-20 11:50:32,362 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) [2022-11-20 11:50:32,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:32,362 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] [2022-11-20 11:50:32,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:50:32,363 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)] === [2022-11-20 11:50:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1529392297, now seen corresponding path program 1 times [2022-11-20 11:50:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:32,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887247846] [2022-11-20 11:50:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:32,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:32,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:32,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887247846] [2022-11-20 11:50:32,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887247846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:32,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:32,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:50:32,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669176341] [2022-11-20 11:50:32,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:32,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:50:32,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:50:32,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:50:32,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 152 [2022-11-20 11:50:32,479 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) [2022-11-20 11:50:32,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:32,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 152 [2022-11-20 11:50:32,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:32,901 INFO L130 PetriNetUnfolder]: 104/1436 cut-off events. [2022-11-20 11:50:32,901 INFO L131 PetriNetUnfolder]: For 463/495 co-relation queries the response was YES. [2022-11-20 11:50:32,913 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. [2022-11-20 11:50:32,918 INFO L137 encePairwiseOnDemand]: 146/152 looper letters, 15 selfloop transitions, 4 changer transitions 0/202 dead transitions. [2022-11-20 11:50:32,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 202 transitions, 846 flow [2022-11-20 11:50:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:50:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 11:50:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 681 transitions. [2022-11-20 11:50:32,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8960526315789473 [2022-11-20 11:50:32,921 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 681 transitions. [2022-11-20 11:50:32,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 681 transitions. [2022-11-20 11:50:32,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:32,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 681 transitions. [2022-11-20 11:50:32,924 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) [2022-11-20 11:50:32,927 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) [2022-11-20 11:50:32,930 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) [2022-11-20 11:50:32,931 INFO L175 Difference]: Start difference. First operand has 210 places, 195 transitions, 794 flow. Second operand 5 states and 681 transitions. [2022-11-20 11:50:32,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 202 transitions, 846 flow [2022-11-20 11:50:32,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 827 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-20 11:50:32,945 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 805 flow [2022-11-20 11:50:32,945 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} [2022-11-20 11:50:32,947 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 58 predicate places. [2022-11-20 11:50:32,947 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 805 flow [2022-11-20 11:50:32,950 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) [2022-11-20 11:50:32,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:32,954 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] [2022-11-20 11:50:32,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:50:32,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:50:32,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:32,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1386784249, now seen corresponding path program 1 times [2022-11-20 11:50:32,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:32,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513598085] [2022-11-20 11:50:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:32,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:33,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:33,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513598085] [2022-11-20 11:50:33,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513598085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:33,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:33,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:50:33,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132153661] [2022-11-20 11:50:33,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:33,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:50:33,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:33,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:50:33,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:50:33,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-20 11:50:33,396 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) [2022-11-20 11:50:33,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:33,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-20 11:50:33,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:37,117 INFO L130 PetriNetUnfolder]: 2746/10326 cut-off events. [2022-11-20 11:50:37,118 INFO L131 PetriNetUnfolder]: For 8291/8472 co-relation queries the response was YES. [2022-11-20 11:50:37,194 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. [2022-11-20 11:50:37,246 INFO L137 encePairwiseOnDemand]: 132/152 looper letters, 495 selfloop transitions, 161 changer transitions 0/760 dead transitions. [2022-11-20 11:50:37,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 760 transitions, 4783 flow [2022-11-20 11:50:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 11:50:37,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-20 11:50:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3815 transitions. [2022-11-20 11:50:37,256 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6971856725146199 [2022-11-20 11:50:37,256 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3815 transitions. [2022-11-20 11:50:37,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3815 transitions. [2022-11-20 11:50:37,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:37,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3815 transitions. [2022-11-20 11:50:37,269 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) [2022-11-20 11:50:37,280 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) [2022-11-20 11:50:37,283 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) [2022-11-20 11:50:37,283 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 805 flow. Second operand 36 states and 3815 transitions. [2022-11-20 11:50:37,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 760 transitions, 4783 flow [2022-11-20 11:50:37,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 760 transitions, 4781 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:50:37,332 INFO L231 Difference]: Finished difference. Result has 268 places, 374 transitions, 2573 flow [2022-11-20 11:50:37,333 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} [2022-11-20 11:50:37,334 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 123 predicate places. [2022-11-20 11:50:37,334 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 374 transitions, 2573 flow [2022-11-20 11:50:37,334 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) [2022-11-20 11:50:37,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:37,335 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] [2022-11-20 11:50:37,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:50:37,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:50:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:37,339 INFO L85 PathProgramCache]: Analyzing trace with hash 284602123, now seen corresponding path program 2 times [2022-11-20 11:50:37,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:37,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593708538] [2022-11-20 11:50:37,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:37,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:37,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:37,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593708538] [2022-11-20 11:50:37,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593708538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:37,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:37,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:50:37,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776425423] [2022-11-20 11:50:37,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:37,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:50:37,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:37,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:50:37,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:50:37,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-20 11:50:37,817 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) [2022-11-20 11:50:37,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:37,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-20 11:50:37,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:43,777 INFO L130 PetriNetUnfolder]: 4039/15054 cut-off events. [2022-11-20 11:50:43,777 INFO L131 PetriNetUnfolder]: For 46129/46529 co-relation queries the response was YES. [2022-11-20 11:50:43,949 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. [2022-11-20 11:50:44,018 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 562 selfloop transitions, 208 changer transitions 0/874 dead transitions. [2022-11-20 11:50:44,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 874 transitions, 8017 flow [2022-11-20 11:50:44,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:50:44,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 11:50:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2776 transitions. [2022-11-20 11:50:44,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7024291497975709 [2022-11-20 11:50:44,026 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2776 transitions. [2022-11-20 11:50:44,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2776 transitions. [2022-11-20 11:50:44,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:44,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2776 transitions. [2022-11-20 11:50:44,035 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) [2022-11-20 11:50:44,044 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) [2022-11-20 11:50:44,046 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) [2022-11-20 11:50:44,046 INFO L175 Difference]: Start difference. First operand has 268 places, 374 transitions, 2573 flow. Second operand 26 states and 2776 transitions. [2022-11-20 11:50:44,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 874 transitions, 8017 flow [2022-11-20 11:50:44,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 874 transitions, 7933 flow, removed 42 selfloop flow, removed 0 redundant places. [2022-11-20 11:50:44,342 INFO L231 Difference]: Finished difference. Result has 315 places, 537 transitions, 4987 flow [2022-11-20 11:50:44,343 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} [2022-11-20 11:50:44,344 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 170 predicate places. [2022-11-20 11:50:44,344 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 537 transitions, 4987 flow [2022-11-20 11:50:44,345 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) [2022-11-20 11:50:44,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:44,345 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] [2022-11-20 11:50:44,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:50:44,346 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:50:44,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:44,346 INFO L85 PathProgramCache]: Analyzing trace with hash 622819631, now seen corresponding path program 3 times [2022-11-20 11:50:44,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:44,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71361483] [2022-11-20 11:50:44,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:44,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:44,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:44,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71361483] [2022-11-20 11:50:44,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71361483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:44,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:44,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:50:44,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922853897] [2022-11-20 11:50:44,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:44,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:50:44,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:44,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:50:44,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:50:44,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-20 11:50:44,813 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) [2022-11-20 11:50:44,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:44,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-20 11:50:44,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:56,711 INFO L130 PetriNetUnfolder]: 7958/29387 cut-off events. [2022-11-20 11:50:56,711 INFO L131 PetriNetUnfolder]: For 174417/175434 co-relation queries the response was YES. [2022-11-20 11:50:57,101 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. [2022-11-20 11:50:57,483 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 826 selfloop transitions, 454 changer transitions 0/1384 dead transitions. [2022-11-20 11:50:57,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 1384 transitions, 16532 flow [2022-11-20 11:50:57,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 11:50:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-20 11:50:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3393 transitions. [2022-11-20 11:50:57,490 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6975740131578947 [2022-11-20 11:50:57,491 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3393 transitions. [2022-11-20 11:50:57,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3393 transitions. [2022-11-20 11:50:57,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:57,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3393 transitions. [2022-11-20 11:50:57,502 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) [2022-11-20 11:50:57,510 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) [2022-11-20 11:50:57,527 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) [2022-11-20 11:50:57,528 INFO L175 Difference]: Start difference. First operand has 315 places, 537 transitions, 4987 flow. Second operand 32 states and 3393 transitions. [2022-11-20 11:50:57,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 1384 transitions, 16532 flow [2022-11-20 11:50:58,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1384 transitions, 15612 flow, removed 460 selfloop flow, removed 0 redundant places. [2022-11-20 11:50:58,694 INFO L231 Difference]: Finished difference. Result has 376 places, 900 transitions, 11111 flow [2022-11-20 11:50:58,695 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} [2022-11-20 11:50:58,695 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 231 predicate places. [2022-11-20 11:50:58,696 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 900 transitions, 11111 flow [2022-11-20 11:50:58,697 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) [2022-11-20 11:50:58,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:58,697 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] [2022-11-20 11:50:58,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:50:58,697 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:50:58,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:58,698 INFO L85 PathProgramCache]: Analyzing trace with hash 402086713, now seen corresponding path program 4 times [2022-11-20 11:50:58,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:58,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279698790] [2022-11-20 11:50:58,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:58,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:59,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:59,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:59,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279698790] [2022-11-20 11:50:59,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279698790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:59,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:59,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:50:59,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884584029] [2022-11-20 11:50:59,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:59,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:50:59,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:59,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:50:59,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:50:59,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-20 11:50:59,113 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) [2022-11-20 11:50:59,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:59,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-20 11:50:59,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:16,246 INFO L130 PetriNetUnfolder]: 10813/40382 cut-off events. [2022-11-20 11:51:16,246 INFO L131 PetriNetUnfolder]: For 387310/388835 co-relation queries the response was YES. [2022-11-20 11:51:16,967 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. [2022-11-20 11:51:17,156 INFO L137 encePairwiseOnDemand]: 133/152 looper letters, 1134 selfloop transitions, 559 changer transitions 0/1797 dead transitions. [2022-11-20 11:51:17,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 1797 transitions, 25256 flow [2022-11-20 11:51:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 11:51:17,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-20 11:51:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2928 transitions. [2022-11-20 11:51:17,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7134502923976608 [2022-11-20 11:51:17,167 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2928 transitions. [2022-11-20 11:51:17,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2928 transitions. [2022-11-20 11:51:17,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:17,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2928 transitions. [2022-11-20 11:51:17,178 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) [2022-11-20 11:51:17,187 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) [2022-11-20 11:51:17,189 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) [2022-11-20 11:51:17,189 INFO L175 Difference]: Start difference. First operand has 376 places, 900 transitions, 11111 flow. Second operand 27 states and 2928 transitions. [2022-11-20 11:51:17,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 1797 transitions, 25256 flow [2022-11-20 11:51:20,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1797 transitions, 24292 flow, removed 480 selfloop flow, removed 1 redundant places. [2022-11-20 11:51:20,371 INFO L231 Difference]: Finished difference. Result has 423 places, 1243 transitions, 18121 flow [2022-11-20 11:51:20,372 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} [2022-11-20 11:51:20,373 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, 278 predicate places. [2022-11-20 11:51:20,373 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 1243 transitions, 18121 flow [2022-11-20 11:51:20,373 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) [2022-11-20 11:51:20,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:20,374 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] [2022-11-20 11:51:20,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:51:20,374 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-20 11:51:20,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:20,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1462628667, now seen corresponding path program 5 times [2022-11-20 11:51:20,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:20,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404523023] [2022-11-20 11:51:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:51:20,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404523023] [2022-11-20 11:51:20,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404523023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:20,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:20,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:51:20,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948135543] [2022-11-20 11:51:20,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:20,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:51:20,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:20,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:51:20,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:51:20,694 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 152 [2022-11-20 11:51:20,695 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) [2022-11-20 11:51:20,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:20,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 152 [2022-11-20 11:51:20,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand