./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:30:49,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:30:49,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:30:49,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:30:49,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:30:49,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:30:49,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:30:49,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:30:49,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:30:49,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:30:49,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:30:49,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:30:49,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:30:49,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:30:49,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:30:49,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:30:49,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:30:49,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:30:49,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:30:49,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:30:49,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:30:49,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:30:49,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:30:49,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:30:49,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:30:49,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:30:49,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:30:49,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:30:49,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:30:49,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:30:49,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:30:49,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:30:49,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:30:49,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:30:49,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:30:49,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:30:49,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:30:49,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:30:49,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:30:49,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:30:49,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:30:49,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:30:49,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:30:49,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:30:49,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:30:49,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:30:49,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:30:49,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:30:49,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:30:49,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:30:49,895 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:30:49,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:30:49,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:30:49,896 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:30:49,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:30:49,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:30:49,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:30:49,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:30:49,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:30:49,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:30:49,897 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:30:49,898 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:30:49,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:30:49,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:30:49,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:30:49,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:30:49,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:30:49,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:30:49,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:49,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:30:49,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:30:49,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:30:49,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:30:49,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:30:49,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:30:49,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:30:49,901 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:30:49,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:30:49,902 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-11-25 17:30:50,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:30:50,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:30:50,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:30:50,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:30:50,274 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:30:50,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-25 17:30:53,400 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:30:53,586 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:30:53,587 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-25 17:30:53,594 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/data/417ffe7db/5708bfb7de77497281b323a0cd57a95e/FLAG1393dd798 [2022-11-25 17:30:53,610 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/data/417ffe7db/5708bfb7de77497281b323a0cd57a95e [2022-11-25 17:30:53,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:30:53,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:30:53,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:53,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:30:53,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:30:53,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:53" (1/1) ... [2022-11-25 17:30:53,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fb6449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:53, skipping insertion in model container [2022-11-25 17:30:53,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:53" (1/1) ... [2022-11-25 17:30:53,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:30:53,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:30:53,910 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_0230620f-a581-41a1-b04d-362af22a7d22/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-25 17:30:53,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:53,945 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:30:53,991 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_0230620f-a581-41a1-b04d-362af22a7d22/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-25 17:30:53,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:54,014 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:30:54,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54 WrapperNode [2022-11-25 17:30:54,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:54,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:54,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:30:54,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:30:54,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,079 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 479 [2022-11-25 17:30:54,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:54,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:30:54,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:30:54,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:30:54,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:30:54,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:30:54,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:30:54,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:30:54,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (1/1) ... [2022-11-25 17:30:54,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:54,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:30:54,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:30:54,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:30:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:30:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:30:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:30:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 17:30:54,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 17:30:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 17:30:54,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 17:30:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 17:30:54,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 17:30:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:30:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:30:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:30:54,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:30:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:30:54,221 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:30:54,371 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:30:54,395 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:30:55,430 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:30:55,460 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:30:55,460 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 17:30:55,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:55 BoogieIcfgContainer [2022-11-25 17:30:55,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:30:55,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:30:55,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:30:55,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:30:55,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:30:53" (1/3) ... [2022-11-25 17:30:55,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6389f524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:55, skipping insertion in model container [2022-11-25 17:30:55,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:54" (2/3) ... [2022-11-25 17:30:55,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6389f524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:55, skipping insertion in model container [2022-11-25 17:30:55,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:55" (3/3) ... [2022-11-25 17:30:55,483 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-11-25 17:30:55,493 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:30:55,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:30:55,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-25 17:30:55,505 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:30:55,704 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 17:30:55,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 620 places, 657 transitions, 1338 flow [2022-11-25 17:30:56,097 INFO L130 PetriNetUnfolder]: 47/654 cut-off events. [2022-11-25 17:30:56,097 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 17:30:56,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 654 events. 47/654 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1082 event pairs, 0 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 551. Up to 2 conditions per place. [2022-11-25 17:30:56,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 620 places, 657 transitions, 1338 flow [2022-11-25 17:30:56,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 633 transitions, 1281 flow [2022-11-25 17:30:56,167 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:30:56,200 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 633 transitions, 1281 flow [2022-11-25 17:30:56,207 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 633 transitions, 1281 flow [2022-11-25 17:30:56,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 633 transitions, 1281 flow [2022-11-25 17:30:56,418 INFO L130 PetriNetUnfolder]: 46/633 cut-off events. [2022-11-25 17:30:56,418 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:30:56,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 633 events. 46/633 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1079 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 551. Up to 2 conditions per place. [2022-11-25 17:30:56,442 INFO L119 LiptonReduction]: Number of co-enabled transitions 40128 [2022-11-25 17:31:37,065 INFO L134 LiptonReduction]: Checked pairs total: 49598 [2022-11-25 17:31:37,066 INFO L136 LiptonReduction]: Total number of compositions: 804 [2022-11-25 17:31:37,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:31:37,089 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;@18554972, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:31:37,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-25 17:31:37,092 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:31:37,092 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:31:37,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:31:37,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:31:37,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:31:37,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2584, now seen corresponding path program 1 times [2022-11-25 17:31:37,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:37,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563039651] [2022-11-25 17:31:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:37,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:37,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:37,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563039651] [2022-11-25 17:31:37,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563039651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:37,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:37,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:31:37,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148310913] [2022-11-25 17:31:37,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:37,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:31:37,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:37,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:31:37,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:31:37,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 1461 [2022-11-25 17:31:37,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 179 flow. Second operand has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:37,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:31:37,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 1461 [2022-11-25 17:31:37,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:31:38,969 INFO L130 PetriNetUnfolder]: 4475/6364 cut-off events. [2022-11-25 17:31:38,970 INFO L131 PetriNetUnfolder]: For 323/323 co-relation queries the response was YES. [2022-11-25 17:31:38,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13071 conditions, 6364 events. 4475/6364 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 30312 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12104. Up to 6365 conditions per place. [2022-11-25 17:31:39,011 INFO L137 encePairwiseOnDemand]: 1453/1461 looper letters, 74 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2022-11-25 17:31:39,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 74 transitions, 311 flow [2022-11-25 17:31:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:31:39,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:31:39,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1324 transitions. [2022-11-25 17:31:39,036 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4531143052703628 [2022-11-25 17:31:39,037 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1324 transitions. [2022-11-25 17:31:39,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1324 transitions. [2022-11-25 17:31:39,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:39,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1324 transitions. [2022-11-25 17:31:39,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 662.0) internal successors, (1324), 2 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1461.0) internal successors, (4383), 3 states have internal predecessors, (4383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,073 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1461.0) internal successors, (4383), 3 states have internal predecessors, (4383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,075 INFO L175 Difference]: Start difference. First operand has 82 places, 82 transitions, 179 flow. Second operand 2 states and 1324 transitions. [2022-11-25 17:31:39,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 74 transitions, 311 flow [2022-11-25 17:31:39,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 74 transitions, 302 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 17:31:39,087 INFO L231 Difference]: Finished difference. Result has 70 places, 74 transitions, 154 flow [2022-11-25 17:31:39,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=70, PETRI_TRANSITIONS=74} [2022-11-25 17:31:39,094 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2022-11-25 17:31:39,094 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 74 transitions, 154 flow [2022-11-25 17:31:39,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:31:39,096 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:31:39,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:31:39,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:31:39,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:39,103 INFO L85 PathProgramCache]: Analyzing trace with hash 82472, now seen corresponding path program 1 times [2022-11-25 17:31:39,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:39,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797180401] [2022-11-25 17:31:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:39,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:39,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:39,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797180401] [2022-11-25 17:31:39,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797180401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:39,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:39,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:31:39,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499829298] [2022-11-25 17:31:39,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:39,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:31:39,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:39,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:31:39,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:31:39,432 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-25 17:31:39,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 74 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:39,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:31:39,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-25 17:31:39,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:31:40,838 INFO L130 PetriNetUnfolder]: 4475/6362 cut-off events. [2022-11-25 17:31:40,838 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-25 17:31:40,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12981 conditions, 6362 events. 4475/6362 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 30342 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12978. Up to 6362 conditions per place. [2022-11-25 17:31:40,881 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 71 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2022-11-25 17:31:40,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 294 flow [2022-11-25 17:31:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:31:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:31:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1913 transitions. [2022-11-25 17:31:40,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43645904631530913 [2022-11-25 17:31:40,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1913 transitions. [2022-11-25 17:31:40,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1913 transitions. [2022-11-25 17:31:40,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:40,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1913 transitions. [2022-11-25 17:31:40,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:40,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:40,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:40,906 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 154 flow. Second operand 3 states and 1913 transitions. [2022-11-25 17:31:40,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 294 flow [2022-11-25 17:31:40,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 72 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:31:40,910 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 152 flow [2022-11-25 17:31:40,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=70, PETRI_TRANSITIONS=72} [2022-11-25 17:31:40,911 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2022-11-25 17:31:40,911 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 152 flow [2022-11-25 17:31:40,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:40,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:31:40,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:31:40,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:31:40,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:31:40,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash 82349, now seen corresponding path program 1 times [2022-11-25 17:31:40,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:40,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899358973] [2022-11-25 17:31:40,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:40,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:41,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:41,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899358973] [2022-11-25 17:31:41,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899358973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:41,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:41,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:31:41,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796304482] [2022-11-25 17:31:41,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:41,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:31:41,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:41,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:31:41,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:31:41,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-25 17:31:41,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:41,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:31:41,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-25 17:31:41,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:31:43,832 INFO L130 PetriNetUnfolder]: 8949/12717 cut-off events. [2022-11-25 17:31:43,833 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-25 17:31:43,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25947 conditions, 12717 events. 8949/12717 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 67866 event pairs, 7650 based on Foata normal form. 0/6679 useless extension candidates. Maximal degree in co-relation 25943. Up to 6363 conditions per place. [2022-11-25 17:31:43,918 INFO L137 encePairwiseOnDemand]: 1449/1461 looper letters, 131 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2022-11-25 17:31:43,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 137 transitions, 562 flow [2022-11-25 17:31:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:31:43,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:31:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1979 transitions. [2022-11-25 17:31:43,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4515172256445357 [2022-11-25 17:31:43,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1979 transitions. [2022-11-25 17:31:43,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1979 transitions. [2022-11-25 17:31:43,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:43,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1979 transitions. [2022-11-25 17:31:43,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.6666666666666) internal successors, (1979), 3 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:43,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:43,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:43,944 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 152 flow. Second operand 3 states and 1979 transitions. [2022-11-25 17:31:43,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 137 transitions, 562 flow [2022-11-25 17:31:43,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 137 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:31:43,950 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 207 flow [2022-11-25 17:31:43,951 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2022-11-25 17:31:43,952 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2022-11-25 17:31:43,952 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 207 flow [2022-11-25 17:31:43,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:43,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:31:43,954 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:31:43,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:31:43,955 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:31:43,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash 82470, now seen corresponding path program 1 times [2022-11-25 17:31:43,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:43,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360574447] [2022-11-25 17:31:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:43,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:44,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:44,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360574447] [2022-11-25 17:31:44,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360574447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:44,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:44,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:31:44,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876467193] [2022-11-25 17:31:44,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:44,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:31:44,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:44,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:31:44,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:31:44,082 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-25 17:31:44,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:44,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:31:44,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-25 17:31:44,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:31:46,779 INFO L130 PetriNetUnfolder]: 8949/12713 cut-off events. [2022-11-25 17:31:46,779 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-25 17:31:46,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25963 conditions, 12713 events. 8949/12713 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 67718 event pairs, 7650 based on Foata normal form. 2/6689 useless extension candidates. Maximal degree in co-relation 25958. Up to 12713 conditions per place. [2022-11-25 17:31:46,846 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 74 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2022-11-25 17:31:46,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 75 transitions, 353 flow [2022-11-25 17:31:46,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:31:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:31:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1917 transitions. [2022-11-25 17:31:46,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43737166324435317 [2022-11-25 17:31:46,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1917 transitions. [2022-11-25 17:31:46,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1917 transitions. [2022-11-25 17:31:46,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:46,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1917 transitions. [2022-11-25 17:31:46,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 639.0) internal successors, (1917), 3 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:46,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:46,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:46,873 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 207 flow. Second operand 3 states and 1917 transitions. [2022-11-25 17:31:46,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 75 transitions, 353 flow [2022-11-25 17:31:46,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 75 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:31:46,877 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 193 flow [2022-11-25 17:31:46,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2022-11-25 17:31:46,879 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2022-11-25 17:31:46,879 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 193 flow [2022-11-25 17:31:46,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:46,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:31:46,882 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:31:46,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:31:46,882 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:31:46,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2557203, now seen corresponding path program 1 times [2022-11-25 17:31:46,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:46,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722443681] [2022-11-25 17:31:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:46,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:46,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:46,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722443681] [2022-11-25 17:31:46,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722443681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:46,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:46,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:31:46,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844113726] [2022-11-25 17:31:46,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:46,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:31:46,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:46,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:31:46,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:31:46,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-25 17:31:47,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:47,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:31:47,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-25 17:31:47,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:31:48,939 INFO L130 PetriNetUnfolder]: 8949/12710 cut-off events. [2022-11-25 17:31:48,939 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-25 17:31:48,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25949 conditions, 12710 events. 8949/12710 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 67691 event pairs, 7650 based on Foata normal form. 0/6683 useless extension candidates. Maximal degree in co-relation 25944. Up to 12710 conditions per place. [2022-11-25 17:31:49,020 INFO L137 encePairwiseOnDemand]: 1457/1461 looper letters, 71 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2022-11-25 17:31:49,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 325 flow [2022-11-25 17:31:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:31:49,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:31:49,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1906 transitions. [2022-11-25 17:31:49,029 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43486196668948207 [2022-11-25 17:31:49,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1906 transitions. [2022-11-25 17:31:49,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1906 transitions. [2022-11-25 17:31:49,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:49,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1906 transitions. [2022-11-25 17:31:49,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:49,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:49,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:49,050 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 193 flow. Second operand 3 states and 1906 transitions. [2022-11-25 17:31:49,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 325 flow [2022-11-25 17:31:49,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:31:49,054 INFO L231 Difference]: Finished difference. Result has 69 places, 72 transitions, 182 flow [2022-11-25 17:31:49,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=69, PETRI_TRANSITIONS=72} [2022-11-25 17:31:49,058 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2022-11-25 17:31:49,058 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 72 transitions, 182 flow [2022-11-25 17:31:49,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:49,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:31:49,060 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:31:49,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:31:49,060 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:31:49,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2557202, now seen corresponding path program 1 times [2022-11-25 17:31:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:49,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666434459] [2022-11-25 17:31:49,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:49,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:49,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:49,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666434459] [2022-11-25 17:31:49,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666434459] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:31:49,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650256465] [2022-11-25 17:31:49,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:49,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:49,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:49,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:49,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:31:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:49,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:31:49,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:49,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:31:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:49,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650256465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:31:49,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:31:49,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-25 17:31:49,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944680029] [2022-11-25 17:31:49,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:31:49,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:31:49,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:49,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:31:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:31:49,624 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-25 17:31:49,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 72 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 613.1428571428571) internal successors, (4292), 7 states have internal predecessors, (4292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:49,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:31:49,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-25 17:31:49,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:31:54,953 INFO L130 PetriNetUnfolder]: 22371/31769 cut-off events. [2022-11-25 17:31:54,953 INFO L131 PetriNetUnfolder]: For 315/315 co-relation queries the response was YES. [2022-11-25 17:31:55,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64845 conditions, 31769 events. 22371/31769 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191585 event pairs, 19125 based on Foata normal form. 0/16706 useless extension candidates. Maximal degree in co-relation 64840. Up to 6359 conditions per place. [2022-11-25 17:31:55,111 INFO L137 encePairwiseOnDemand]: 1452/1461 looper letters, 298 selfloop transitions, 21 changer transitions 0/319 dead transitions. [2022-11-25 17:31:55,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 319 transitions, 1368 flow [2022-11-25 17:31:55,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:31:55,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:31:55,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4000 transitions. [2022-11-25 17:31:55,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4563084645220169 [2022-11-25 17:31:55,121 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4000 transitions. [2022-11-25 17:31:55,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4000 transitions. [2022-11-25 17:31:55,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:31:55,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4000 transitions. [2022-11-25 17:31:55,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 666.6666666666666) internal successors, (4000), 6 states have internal predecessors, (4000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:55,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1461.0) internal successors, (10227), 7 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:55,149 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1461.0) internal successors, (10227), 7 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:55,149 INFO L175 Difference]: Start difference. First operand has 69 places, 72 transitions, 182 flow. Second operand 6 states and 4000 transitions. [2022-11-25 17:31:55,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 319 transitions, 1368 flow [2022-11-25 17:31:55,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 319 transitions, 1367 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:31:55,154 INFO L231 Difference]: Finished difference. Result has 76 places, 87 transitions, 331 flow [2022-11-25 17:31:55,155 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=76, PETRI_TRANSITIONS=87} [2022-11-25 17:31:55,155 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -6 predicate places. [2022-11-25 17:31:55,155 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 87 transitions, 331 flow [2022-11-25 17:31:55,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 613.1428571428571) internal successors, (4292), 7 states have internal predecessors, (4292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:55,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:31:55,157 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:31:55,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:31:55,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0230620f-a581-41a1-b04d-362af22a7d22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:55,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:31:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2561141, now seen corresponding path program 1 times [2022-11-25 17:31:55,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:55,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069250957] [2022-11-25 17:31:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:55,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:55,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:55,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:55,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069250957] [2022-11-25 17:31:55,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069250957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:55,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:55,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:31:55,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306892976] [2022-11-25 17:31:55,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:55,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:31:55,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:31:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:31:55,463 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-25 17:31:55,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 87 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:31:55,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:31:55,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-25 17:31:55,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:32:00,110 INFO L130 PetriNetUnfolder]: 22371/31759 cut-off events. [2022-11-25 17:32:00,110 INFO L131 PetriNetUnfolder]: For 320/320 co-relation queries the response was YES. [2022-11-25 17:32:00,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64876 conditions, 31759 events. 22371/31759 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191502 event pairs, 19125 based on Foata normal form. 0/16715 useless extension candidates. Maximal degree in co-relation 64868. Up to 31759 conditions per place. [2022-11-25 17:32:00,293 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 84 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2022-11-25 17:32:00,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 85 transitions, 497 flow [2022-11-25 17:32:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:32:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:32:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1912 transitions. [2022-11-25 17:32:00,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43623089208304816 [2022-11-25 17:32:00,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1912 transitions. [2022-11-25 17:32:00,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1912 transitions. [2022-11-25 17:32:00,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:32:00,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1912 transitions. [2022-11-25 17:32:00,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:00,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:00,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:00,316 INFO L175 Difference]: Start difference. First operand has 76 places, 87 transitions, 331 flow. Second operand 3 states and 1912 transitions. [2022-11-25 17:32:00,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 85 transitions, 497 flow [2022-11-25 17:32:00,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 85 transitions, 467 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-25 17:32:00,320 INFO L231 Difference]: Finished difference. Result has 75 places, 85 transitions, 299 flow [2022-11-25 17:32:00,321 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=75, PETRI_TRANSITIONS=85} [2022-11-25 17:32:00,321 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -7 predicate places. [2022-11-25 17:32:00,322 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 299 flow [2022-11-25 17:32:00,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:00,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:32:00,323 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:32:00,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:32:00,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:32:00,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:00,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2561191, now seen corresponding path program 1 times [2022-11-25 17:32:00,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:00,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591562383] [2022-11-25 17:32:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:00,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:00,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:00,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591562383] [2022-11-25 17:32:00,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591562383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:00,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:00,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:32:00,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606126764] [2022-11-25 17:32:00,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:00,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:32:00,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:00,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:32:00,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:32:00,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-25 17:32:00,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 85 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:00,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:32:00,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-25 17:32:00,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:32:05,204 INFO L130 PetriNetUnfolder]: 22371/31749 cut-off events. [2022-11-25 17:32:05,204 INFO L131 PetriNetUnfolder]: For 324/324 co-relation queries the response was YES. [2022-11-25 17:32:05,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64840 conditions, 31749 events. 22371/31749 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191441 event pairs, 19125 based on Foata normal form. 5/16717 useless extension candidates. Maximal degree in co-relation 64831. Up to 31749 conditions per place. [2022-11-25 17:32:05,385 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 82 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2022-11-25 17:32:05,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 83 transitions, 461 flow [2022-11-25 17:32:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:32:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:32:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1904 transitions. [2022-11-25 17:32:05,394 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4344056582249601 [2022-11-25 17:32:05,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1904 transitions. [2022-11-25 17:32:05,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1904 transitions. [2022-11-25 17:32:05,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:32:05,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1904 transitions. [2022-11-25 17:32:05,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 634.6666666666666) internal successors, (1904), 3 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:05,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:05,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:05,414 INFO L175 Difference]: Start difference. First operand has 75 places, 85 transitions, 299 flow. Second operand 3 states and 1904 transitions. [2022-11-25 17:32:05,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 83 transitions, 461 flow [2022-11-25 17:32:05,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 83 transitions, 460 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:32:05,418 INFO L231 Difference]: Finished difference. Result has 74 places, 83 transitions, 296 flow [2022-11-25 17:32:05,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=74, PETRI_TRANSITIONS=83} [2022-11-25 17:32:05,419 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2022-11-25 17:32:05,419 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 83 transitions, 296 flow [2022-11-25 17:32:05,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:05,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:32:05,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:32:05,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:32:05,421 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-25 17:32:05,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash 79402964, now seen corresponding path program 1 times [2022-11-25 17:32:05,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:05,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266301158] [2022-11-25 17:32:05,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:05,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:05,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:05,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266301158] [2022-11-25 17:32:05,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266301158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:05,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:05,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:32:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311540780] [2022-11-25 17:32:05,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:05,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:32:05,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:05,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:32:05,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:32:05,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-25 17:32:05,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 83 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:32:05,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:32:05,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-25 17:32:05,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand