./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/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_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/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_a998f8a7-8dff-479e-a914-48987ed5289a/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 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 --- 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 15:50:31,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:50:31,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:50:31,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:50:31,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:50:31,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:50:31,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:50:31,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:50:31,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:50:31,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:50:31,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:50:31,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:50:31,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:50:31,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:50:31,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:50:31,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:50:31,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:50:31,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:50:31,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:50:31,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:50:31,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:50:31,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:50:32,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:50:32,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:50:32,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:50:32,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:50:32,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:50:32,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:50:32,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:50:32,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:50:32,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:50:32,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:50:32,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:50:32,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:50:32,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:50:32,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:50:32,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:50:32,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:50:32,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:50:32,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:50:32,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:50:32,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:50:32,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:50:32,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:50:32,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:50:32,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:50:32,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:50:32,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:50:32,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:50:32,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:50:32,076 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:50:32,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:50:32,077 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:50:32,078 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:50:32,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:50:32,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:50:32,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:50:32,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:50:32,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:50:32,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:50:32,079 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:50:32,079 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:50:32,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:50:32,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:50:32,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:50:32,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:50:32,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:50:32,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:50:32,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:50:32,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:50:32,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:50:32,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:50:32,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:50:32,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:50:32,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:50:32,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:50:32,083 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:50:32,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:50:32,084 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_a998f8a7-8dff-479e-a914-48987ed5289a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 [2022-11-25 15:50:32,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:50:32,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:50:32,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:50:32,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:50:32,459 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:50:32,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-25 15:50:35,648 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:50:35,917 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:50:35,917 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-25 15:50:35,928 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/data/6c9757325/524a6edc579d4a508364aa213e4149dc/FLAG88f1032ff [2022-11-25 15:50:35,949 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/data/6c9757325/524a6edc579d4a508364aa213e4149dc [2022-11-25 15:50:35,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:50:35,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:50:35,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:50:35,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:50:35,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:50:35,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:50:35" (1/1) ... [2022-11-25 15:50:35,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a111189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:35, skipping insertion in model container [2022-11-25 15:50:35,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:50:35" (1/1) ... [2022-11-25 15:50:35,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:50:36,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:50:36,188 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_a998f8a7-8dff-479e-a914-48987ed5289a/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-25 15:50:36,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:50:36,203 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:50:36,266 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_a998f8a7-8dff-479e-a914-48987ed5289a/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-25 15:50:36,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:50:36,298 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:50:36,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36 WrapperNode [2022-11-25 15:50:36,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:50:36,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:50:36,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:50:36,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:50:36,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,390 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 182 [2022-11-25 15:50:36,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:50:36,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:50:36,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:50:36,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:50:36,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:50:36,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:50:36,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:50:36,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:50:36,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (1/1) ... [2022-11-25 15:50:36,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:50:36,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:36,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:50:36,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:50:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:50:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:50:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:50:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:50:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 15:50:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 15:50:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 15:50:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 15:50:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 15:50:36,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 15:50:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:50:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:50:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:50:36,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:50:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:50:36,571 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 15:50:36,792 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:50:36,795 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:50:37,447 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:50:37,460 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:50:37,460 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 15:50:37,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:50:37 BoogieIcfgContainer [2022-11-25 15:50:37,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:50:37,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:50:37,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:50:37,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:50:37,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:50:35" (1/3) ... [2022-11-25 15:50:37,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca17e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:50:37, skipping insertion in model container [2022-11-25 15:50:37,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:36" (2/3) ... [2022-11-25 15:50:37,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca17e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:50:37, skipping insertion in model container [2022-11-25 15:50:37,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:50:37" (3/3) ... [2022-11-25 15:50:37,472 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2022-11-25 15:50:37,481 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:50:37,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:50:37,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 15:50:37,493 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:50:37,668 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 15:50:37,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 326 places, 345 transitions, 714 flow [2022-11-25 15:50:37,909 INFO L130 PetriNetUnfolder]: 29/342 cut-off events. [2022-11-25 15:50:37,909 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 15:50:37,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 342 events. 29/342 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 547 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 269. Up to 3 conditions per place. [2022-11-25 15:50:37,921 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 345 transitions, 714 flow [2022-11-25 15:50:37,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 296 places, 313 transitions, 641 flow [2022-11-25 15:50:37,949 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:50:37,980 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 296 places, 313 transitions, 641 flow [2022-11-25 15:50:37,983 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 296 places, 313 transitions, 641 flow [2022-11-25 15:50:37,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 296 places, 313 transitions, 641 flow [2022-11-25 15:50:38,067 INFO L130 PetriNetUnfolder]: 27/313 cut-off events. [2022-11-25 15:50:38,067 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 15:50:38,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 313 events. 27/313 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 539 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 269. Up to 3 conditions per place. [2022-11-25 15:50:38,105 INFO L119 LiptonReduction]: Number of co-enabled transitions 11400 [2022-11-25 15:50:50,206 INFO L134 LiptonReduction]: Checked pairs total: 16317 [2022-11-25 15:50:50,206 INFO L136 LiptonReduction]: Total number of compositions: 338 [2022-11-25 15:50:50,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:50:50,232 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;@1c1bc974, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:50:50,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-25 15:50:50,235 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 15:50:50,235 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:50:50,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:50:50,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 15:50:50,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2022-11-25 15:50:50,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:50,242 INFO L85 PathProgramCache]: Analyzing trace with hash 41477, now seen corresponding path program 1 times [2022-11-25 15:50:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:50,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937688025] [2022-11-25 15:50:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:50,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:50,620 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 15:50:50,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937688025] [2022-11-25 15:50:50,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937688025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:50,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:50,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:50:50,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639806599] [2022-11-25 15:50:50,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:50,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:50:50,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:50,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:50:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:50:50,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 683 [2022-11-25 15:50:50,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 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 15:50:50,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:50:50,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 683 [2022-11-25 15:50:50,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:50:52,672 INFO L130 PetriNetUnfolder]: 11167/15093 cut-off events. [2022-11-25 15:50:52,672 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2022-11-25 15:50:52,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30827 conditions, 15093 events. 11167/15093 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 781. Compared 76187 event pairs, 8074 based on Foata normal form. 0/7218 useless extension candidates. Maximal degree in co-relation 14220. Up to 7543 conditions per place. [2022-11-25 15:50:52,778 INFO L137 encePairwiseOnDemand]: 671/683 looper letters, 99 selfloop transitions, 6 changer transitions 0/106 dead transitions. [2022-11-25 15:50:52,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 106 transitions, 452 flow [2022-11-25 15:50:52,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:50:52,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:50:52,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1056 transitions. [2022-11-25 15:50:52,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5153733528550513 [2022-11-25 15:50:52,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1056 transitions. [2022-11-25 15:50:52,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1056 transitions. [2022-11-25 15:50:52,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:50:52,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1056 transitions. [2022-11-25 15:50:52,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 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 15:50:52,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 683.0) internal successors, (2732), 4 states have internal predecessors, (2732), 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 15:50:52,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 683.0) internal successors, (2732), 4 states have internal predecessors, (2732), 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 15:50:52,834 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 129 flow. Second operand 3 states and 1056 transitions. [2022-11-25 15:50:52,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 106 transitions, 452 flow [2022-11-25 15:50:52,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 106 transitions, 434 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 15:50:52,853 INFO L231 Difference]: Finished difference. Result has 55 places, 62 transitions, 176 flow [2022-11-25 15:50:52,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=683, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=55, PETRI_TRANSITIONS=62} [2022-11-25 15:50:52,860 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2022-11-25 15:50:52,860 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 62 transitions, 176 flow [2022-11-25 15:50:52,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 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 15:50:52,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:50:52,863 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:50:52,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:50:52,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2022-11-25 15:50:52,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:52,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1287460, now seen corresponding path program 1 times [2022-11-25 15:50:52,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:52,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603023044] [2022-11-25 15:50:52,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:52,996 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 15:50:52,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:52,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603023044] [2022-11-25 15:50:52,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603023044] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:50:52,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599320215] [2022-11-25 15:50:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:52,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:52,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:53,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:53,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:50:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:53,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:50:53,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:53,136 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 15:50:53,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:50:53,153 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 15:50:53,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599320215] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:50:53,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:50:53,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-25 15:50:53,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164289450] [2022-11-25 15:50:53,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:50:53,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:50:53,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:53,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:50:53,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:50:53,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 683 [2022-11-25 15:50:53,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 62 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 316.14285714285717) internal successors, (2213), 7 states have internal predecessors, (2213), 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 15:50:53,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:50:53,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 683 [2022-11-25 15:50:53,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:50:57,697 INFO L130 PetriNetUnfolder]: 27925/37731 cut-off events. [2022-11-25 15:50:57,698 INFO L131 PetriNetUnfolder]: For 360/360 co-relation queries the response was YES. [2022-11-25 15:50:57,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76634 conditions, 37731 events. 27925/37731 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 1724. Compared 212339 event pairs, 20185 based on Foata normal form. 0/18069 useless extension candidates. Maximal degree in co-relation 61223. Up to 7541 conditions per place. [2022-11-25 15:50:57,896 INFO L137 encePairwiseOnDemand]: 671/683 looper letters, 228 selfloop transitions, 33 changer transitions 0/262 dead transitions. [2022-11-25 15:50:57,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 262 transitions, 1182 flow [2022-11-25 15:50:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:50:57,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 15:50:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2475 transitions. [2022-11-25 15:50:57,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5176741267517255 [2022-11-25 15:50:57,905 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2475 transitions. [2022-11-25 15:50:57,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2475 transitions. [2022-11-25 15:50:57,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:50:57,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2475 transitions. [2022-11-25 15:50:57,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 353.57142857142856) internal successors, (2475), 7 states have internal predecessors, (2475), 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 15:50:57,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 683.0) internal successors, (5464), 8 states have internal predecessors, (5464), 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 15:50:57,924 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 683.0) internal successors, (5464), 8 states have internal predecessors, (5464), 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 15:50:57,925 INFO L175 Difference]: Start difference. First operand has 55 places, 62 transitions, 176 flow. Second operand 7 states and 2475 transitions. [2022-11-25 15:50:57,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 262 transitions, 1182 flow [2022-11-25 15:50:57,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 262 transitions, 1158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:50:57,930 INFO L231 Difference]: Finished difference. Result has 62 places, 86 transitions, 383 flow [2022-11-25 15:50:57,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=683, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=383, PETRI_PLACES=62, PETRI_TRANSITIONS=86} [2022-11-25 15:50:57,931 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2022-11-25 15:50:57,931 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 86 transitions, 383 flow [2022-11-25 15:50:57,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 316.14285714285717) internal successors, (2213), 7 states have internal predecessors, (2213), 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 15:50:57,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:50:57,933 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2022-11-25 15:50:57,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:58,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:58,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2022-11-25 15:50:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:58,143 INFO L85 PathProgramCache]: Analyzing trace with hash 39912934, now seen corresponding path program 1 times [2022-11-25 15:50:58,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:58,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488301647] [2022-11-25 15:50:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:58,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:58,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488301647] [2022-11-25 15:50:58,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488301647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:50:58,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999491362] [2022-11-25 15:50:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:58,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:58,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:58,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:58,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:50:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:58,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:50:58,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:58,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:58,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:50:58,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999491362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:58,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:50:58,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-25 15:50:58,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446887431] [2022-11-25 15:50:58,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:58,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:50:58,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:50:58,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:50:58,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 683 [2022-11-25 15:50:58,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 86 transitions, 383 flow. Second operand has 5 states, 5 states have (on average 315.8) internal successors, (1579), 5 states have internal predecessors, (1579), 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 15:50:58,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:50:58,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 683 [2022-11-25 15:50:58,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:51:02,304 INFO L130 PetriNetUnfolder]: 27916/37719 cut-off events. [2022-11-25 15:51:02,304 INFO L131 PetriNetUnfolder]: For 315/315 co-relation queries the response was YES. [2022-11-25 15:51:02,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76637 conditions, 37719 events. 27916/37719 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 212416 event pairs, 20185 based on Foata normal form. 2/18070 useless extension candidates. Maximal degree in co-relation 45954. Up to 22605 conditions per place. [2022-11-25 15:51:02,459 INFO L137 encePairwiseOnDemand]: 674/683 looper letters, 146 selfloop transitions, 15 changer transitions 0/162 dead transitions. [2022-11-25 15:51:02,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 162 transitions, 812 flow [2022-11-25 15:51:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:51:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 15:51:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1732 transitions. [2022-11-25 15:51:02,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5071742313323573 [2022-11-25 15:51:02,465 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1732 transitions. [2022-11-25 15:51:02,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1732 transitions. [2022-11-25 15:51:02,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:51:02,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1732 transitions. [2022-11-25 15:51:02,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 346.4) internal successors, (1732), 5 states have internal predecessors, (1732), 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 15:51:02,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 683.0) internal successors, (4098), 6 states have internal predecessors, (4098), 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 15:51:02,479 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 683.0) internal successors, (4098), 6 states have internal predecessors, (4098), 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 15:51:02,480 INFO L175 Difference]: Start difference. First operand has 62 places, 86 transitions, 383 flow. Second operand 5 states and 1732 transitions. [2022-11-25 15:51:02,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 162 transitions, 812 flow [2022-11-25 15:51:02,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 162 transitions, 782 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-25 15:51:02,488 INFO L231 Difference]: Finished difference. Result has 61 places, 74 transitions, 302 flow [2022-11-25 15:51:02,489 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=683, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=302, PETRI_PLACES=61, PETRI_TRANSITIONS=74} [2022-11-25 15:51:02,490 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2022-11-25 15:51:02,490 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 74 transitions, 302 flow [2022-11-25 15:51:02,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 315.8) internal successors, (1579), 5 states have internal predecessors, (1579), 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 15:51:02,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:51:02,496 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-11-25 15:51:02,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:02,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:51:02,705 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2022-11-25 15:51:02,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash -298323515, now seen corresponding path program 2 times [2022-11-25 15:51:02,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:02,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259769908] [2022-11-25 15:51:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:02,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:02,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259769908] [2022-11-25 15:51:02,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259769908] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:51:02,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703675682] [2022-11-25 15:51:02,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:51:02,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:51:02,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:02,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:51:02,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:51:02,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 15:51:02,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:51:02,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:51:02,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:02,984 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 15:51:02,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:51:02,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703675682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:02,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:51:02,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-25 15:51:02,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775718714] [2022-11-25 15:51:02,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:02,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:02,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:02,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:51:03,022 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 683 [2022-11-25 15:51:03,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 74 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 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 15:51:03,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:51:03,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 683 [2022-11-25 15:51:03,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:51:05,871 INFO L130 PetriNetUnfolder]: 27916/37718 cut-off events. [2022-11-25 15:51:05,871 INFO L131 PetriNetUnfolder]: For 325/325 co-relation queries the response was YES. [2022-11-25 15:51:05,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76629 conditions, 37718 events. 27916/37718 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 212346 event pairs, 20185 based on Foata normal form. 1/18044 useless extension candidates. Maximal degree in co-relation 61209. Up to 37673 conditions per place. [2022-11-25 15:51:06,186 INFO L137 encePairwiseOnDemand]: 680/683 looper letters, 66 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2022-11-25 15:51:06,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 73 transitions, 436 flow [2022-11-25 15:51:06,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:51:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:51:06,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1007 transitions. [2022-11-25 15:51:06,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4914592484138604 [2022-11-25 15:51:06,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1007 transitions. [2022-11-25 15:51:06,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1007 transitions. [2022-11-25 15:51:06,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:51:06,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1007 transitions. [2022-11-25 15:51:06,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 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 15:51:06,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 683.0) internal successors, (2732), 4 states have internal predecessors, (2732), 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 15:51:06,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 683.0) internal successors, (2732), 4 states have internal predecessors, (2732), 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 15:51:06,205 INFO L175 Difference]: Start difference. First operand has 61 places, 74 transitions, 302 flow. Second operand 3 states and 1007 transitions. [2022-11-25 15:51:06,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 73 transitions, 436 flow [2022-11-25 15:51:06,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 73 transitions, 415 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 15:51:06,210 INFO L231 Difference]: Finished difference. Result has 59 places, 73 transitions, 283 flow [2022-11-25 15:51:06,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=683, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=59, PETRI_TRANSITIONS=73} [2022-11-25 15:51:06,213 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2022-11-25 15:51:06,214 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 73 transitions, 283 flow [2022-11-25 15:51:06,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 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 15:51:06,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:51:06,215 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1] [2022-11-25 15:51:06,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:06,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-25 15:51:06,422 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2022-11-25 15:51:06,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:06,422 INFO L85 PathProgramCache]: Analyzing trace with hash 467987255, now seen corresponding path program 1 times [2022-11-25 15:51:06,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:06,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869719348] [2022-11-25 15:51:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:06,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:06,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:06,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869719348] [2022-11-25 15:51:06,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869719348] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:51:06,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976998197] [2022-11-25 15:51:06,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:06,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:51:06,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:06,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:51:06,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:51:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:06,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:51:06,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:06,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:51:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:06,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976998197] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:51:06,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:51:06,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-25 15:51:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029530162] [2022-11-25 15:51:06,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:51:06,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 15:51:06,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:06,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 15:51:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:51:07,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 683 [2022-11-25 15:51:07,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 73 transitions, 283 flow. Second operand has 13 states, 13 states have (on average 316.15384615384613) internal successors, (4110), 13 states have internal predecessors, (4110), 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 15:51:07,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:51:07,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 683 [2022-11-25 15:51:07,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:51:14,521 INFO L130 PetriNetUnfolder]: 61414/82976 cut-off events. [2022-11-25 15:51:14,521 INFO L131 PetriNetUnfolder]: For 739/739 co-relation queries the response was YES. [2022-11-25 15:51:14,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168531 conditions, 82976 events. 61414/82976 cut-off events. For 739/739 co-relation queries the response was YES. Maximal size of possible extension queue 2317. Compared 491350 event pairs, 44407 based on Foata normal form. 12/39773 useless extension candidates. Maximal degree in co-relation 168427. Up to 8470 conditions per place. [2022-11-25 15:51:14,979 INFO L137 encePairwiseOnDemand]: 675/683 looper letters, 491 selfloop transitions, 51 changer transitions 0/543 dead transitions. [2022-11-25 15:51:14,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 543 transitions, 2499 flow [2022-11-25 15:51:14,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:51:14,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 15:51:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4334 transitions. [2022-11-25 15:51:14,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5287945339189849 [2022-11-25 15:51:14,993 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4334 transitions. [2022-11-25 15:51:14,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4334 transitions. [2022-11-25 15:51:14,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:51:14,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4334 transitions. [2022-11-25 15:51:15,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 361.1666666666667) internal successors, (4334), 12 states have internal predecessors, (4334), 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 15:51:15,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 683.0) internal successors, (8879), 13 states have internal predecessors, (8879), 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 15:51:15,028 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 683.0) internal successors, (8879), 13 states have internal predecessors, (8879), 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 15:51:15,029 INFO L175 Difference]: Start difference. First operand has 59 places, 73 transitions, 283 flow. Second operand 12 states and 4334 transitions. [2022-11-25 15:51:15,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 543 transitions, 2499 flow [2022-11-25 15:51:15,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 543 transitions, 2475 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:51:15,038 INFO L231 Difference]: Finished difference. Result has 74 places, 103 transitions, 631 flow [2022-11-25 15:51:15,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=683, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=631, PETRI_PLACES=74, PETRI_TRANSITIONS=103} [2022-11-25 15:51:15,043 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2022-11-25 15:51:15,043 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 103 transitions, 631 flow [2022-11-25 15:51:15,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 316.15384615384613) internal successors, (4110), 13 states have internal predecessors, (4110), 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 15:51:15,045 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:51:15,046 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:15,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:15,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a998f8a7-8dff-479e-a914-48987ed5289a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:51:15,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2022-11-25 15:51:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:15,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1878066219, now seen corresponding path program 1 times [2022-11-25 15:51:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:15,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842317165] [2022-11-25 15:51:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:15,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:15,330 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 15:51:15,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:15,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842317165] [2022-11-25 15:51:15,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842317165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:15,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:15,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:51:15,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599338149] [2022-11-25 15:51:15,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:15,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:15,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:15,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:15,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:15,354 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 683 [2022-11-25 15:51:15,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 103 transitions, 631 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 15:51:15,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:51:15,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 683 [2022-11-25 15:51:15,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand