./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8 --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 792abe541332f7dc398bc25a6deb152789a85df6c33026f5ef70dc244a881f99 --- 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-e04fb08 [2022-11-16 12:41:07,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:41:07,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:41:07,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:41:07,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:41:07,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:41:07,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:41:07,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:41:07,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:41:07,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:41:07,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:41:07,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:41:07,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:41:07,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:41:07,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:41:07,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:41:07,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:41:07,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:41:07,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:41:07,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:41:07,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:41:07,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:41:07,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:41:07,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:41:07,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:41:07,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:41:07,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:41:07,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:41:07,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:41:07,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:41:07,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:41:07,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:41:07,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:41:07,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:41:07,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:41:07,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:41:07,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:41:07,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:41:07,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:41:07,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:41:07,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:41:07,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:41:07,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:41:07,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:41:07,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:41:07,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:41:07,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:41:07,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:41:07,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:41:07,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:41:07,362 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:41:07,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:41:07,362 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:41:07,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:41:07,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:41:07,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:41:07,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:41:07,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:41:07,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:41:07,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:41:07,363 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:41:07,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:41:07,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:41:07,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:41:07,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:41:07,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:41:07,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:41:07,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:41:07,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:41:07,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:41:07,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:41:07,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:41:07,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:41:07,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:41:07,366 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:41:07,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:41:07,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:41:07,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792abe541332f7dc398bc25a6deb152789a85df6c33026f5ef70dc244a881f99 [2022-11-16 12:41:07,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:41:07,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:41:07,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:41:07,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:41:07,676 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:41:07,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2022-11-16 12:41:07,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/data/3936acc6b/8567117fbb9d4e2fa31259236adabf19/FLAGaf4125139 [2022-11-16 12:41:08,196 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:41:08,197 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2022-11-16 12:41:08,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/data/3936acc6b/8567117fbb9d4e2fa31259236adabf19/FLAGaf4125139 [2022-11-16 12:41:08,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/data/3936acc6b/8567117fbb9d4e2fa31259236adabf19 [2022-11-16 12:41:08,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:41:08,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:41:08,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:41:08,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:41:08,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:41:08,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:08,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfb2c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08, skipping insertion in model container [2022-11-16 12:41:08,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:08,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:41:08,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:41:08,874 WARN L229 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_a3be6bb6-280f-4aca-94d3-df8d1f510a81/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c[3512,3525] [2022-11-16 12:41:08,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:41:08,890 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:41:08,937 WARN L229 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_a3be6bb6-280f-4aca-94d3-df8d1f510a81/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c[3512,3525] [2022-11-16 12:41:08,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:41:08,959 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:41:08,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08 WrapperNode [2022-11-16 12:41:08,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:41:08,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:41:08,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:41:08,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:41:08,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:08,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,021 INFO L138 Inliner]: procedures = 21, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2022-11-16 12:41:09,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:41:09,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:41:09,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:41:09,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:41:09,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:41:09,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:41:09,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:41:09,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:41:09,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (1/1) ... [2022-11-16 12:41:09,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:41:09,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:41:09,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:41:09,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:41:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:41:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:41:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:41:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:41:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:41:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:41:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:41:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:41:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:41:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:41:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:41:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:41:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:41:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:41:09,156 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:41:09,254 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:41:09,256 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:41:09,613 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:41:09,745 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:41:09,745 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:41:09,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:09 BoogieIcfgContainer [2022-11-16 12:41:09,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:41:09,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:41:09,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:41:09,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:41:09,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:41:08" (1/3) ... [2022-11-16 12:41:09,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e5953e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:09, skipping insertion in model container [2022-11-16 12:41:09,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:41:08" (2/3) ... [2022-11-16 12:41:09,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e5953e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:41:09, skipping insertion in model container [2022-11-16 12:41:09,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:09" (3/3) ... [2022-11-16 12:41:09,758 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2022-11-16 12:41:09,767 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:41:09,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:41:09,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 12:41:09,778 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:41:09,842 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:41:09,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 115 transitions, 246 flow [2022-11-16 12:41:09,937 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-11-16 12:41:09,941 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:41:09,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 113 events. 2/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-11-16 12:41:09,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 115 transitions, 246 flow [2022-11-16 12:41:09,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 94 transitions, 197 flow [2022-11-16 12:41:09,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:41:09,986 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;@31c356bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:41:09,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-16 12:41:10,005 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2022-11-16 12:41:10,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:41:10,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:10,006 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:10,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:10,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:10,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1231710476, now seen corresponding path program 1 times [2022-11-16 12:41:10,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:10,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850052238] [2022-11-16 12:41:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:10,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:10,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:10,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850052238] [2022-11-16 12:41:10,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850052238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:10,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:10,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:41:10,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743461853] [2022-11-16 12:41:10,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:10,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:41:10,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:10,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:41:10,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:41:10,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-16 12:41:10,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2022-11-16 12:41:10,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:10,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-16 12:41:10,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:11,140 INFO L130 PetriNetUnfolder]: 99/371 cut-off events. [2022-11-16 12:41:11,140 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-11-16 12:41:11,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 371 events. 99/371 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1693 event pairs, 53 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 501. Up to 134 conditions per place. [2022-11-16 12:41:11,148 INFO L137 encePairwiseOnDemand]: 99/115 looper letters, 35 selfloop transitions, 14 changer transitions 1/113 dead transitions. [2022-11-16 12:41:11,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 113 transitions, 344 flow [2022-11-16 12:41:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:41:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:41:11,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2022-11-16 12:41:11,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2022-11-16 12:41:11,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 510 transitions. [2022-11-16 12:41:11,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 510 transitions. [2022-11-16 12:41:11,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:11,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 510 transitions. [2022-11-16 12:41:11,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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) [2022-11-16 12:41:11,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-16 12:41:11,201 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-16 12:41:11,204 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 197 flow. Second operand 6 states and 510 transitions. [2022-11-16 12:41:11,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 113 transitions, 344 flow [2022-11-16 12:41:11,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 113 transitions, 335 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:41:11,218 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 272 flow [2022-11-16 12:41:11,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=272, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2022-11-16 12:41:11,226 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2022-11-16 12:41:11,226 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 272 flow [2022-11-16 12:41:11,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2022-11-16 12:41:11,227 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:11,227 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:11,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:41:11,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:11,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:11,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1231710477, now seen corresponding path program 1 times [2022-11-16 12:41:11,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:11,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748277902] [2022-11-16 12:41:11,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:11,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:11,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:11,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748277902] [2022-11-16 12:41:11,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748277902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:11,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:11,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:41:11,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964781785] [2022-11-16 12:41:11,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:11,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:41:11,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:11,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:41:11,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:41:11,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 115 [2022-11-16 12:41:11,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 272 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 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) [2022-11-16 12:41:11,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:11,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 115 [2022-11-16 12:41:11,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:11,703 INFO L130 PetriNetUnfolder]: 78/307 cut-off events. [2022-11-16 12:41:11,703 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2022-11-16 12:41:11,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 307 events. 78/307 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1280 event pairs, 62 based on Foata normal form. 24/299 useless extension candidates. Maximal degree in co-relation 493. Up to 184 conditions per place. [2022-11-16 12:41:11,707 INFO L137 encePairwiseOnDemand]: 107/115 looper letters, 28 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2022-11-16 12:41:11,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 95 transitions, 320 flow [2022-11-16 12:41:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:41:11,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:41:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 511 transitions. [2022-11-16 12:41:11,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7405797101449275 [2022-11-16 12:41:11,710 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 511 transitions. [2022-11-16 12:41:11,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 511 transitions. [2022-11-16 12:41:11,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:11,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 511 transitions. [2022-11-16 12:41:11,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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) [2022-11-16 12:41:11,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-16 12:41:11,714 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-16 12:41:11,714 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 272 flow. Second operand 6 states and 511 transitions. [2022-11-16 12:41:11,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 95 transitions, 320 flow [2022-11-16 12:41:11,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 95 transitions, 309 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:41:11,720 INFO L231 Difference]: Finished difference. Result has 104 places, 95 transitions, 253 flow [2022-11-16 12:41:11,721 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=253, PETRI_PLACES=104, PETRI_TRANSITIONS=95} [2022-11-16 12:41:11,722 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 4 predicate places. [2022-11-16 12:41:11,722 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 95 transitions, 253 flow [2022-11-16 12:41:11,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 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) [2022-11-16 12:41:11,723 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:11,723 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:11,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:41:11,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:11,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:11,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1628841867, now seen corresponding path program 1 times [2022-11-16 12:41:11,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:11,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482829794] [2022-11-16 12:41:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:11,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:11,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:11,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482829794] [2022-11-16 12:41:11,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482829794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:11,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:11,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:41:11,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420178107] [2022-11-16 12:41:11,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:11,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:41:11,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:11,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:41:11,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:41:11,946 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 115 [2022-11-16 12:41:11,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2022-11-16 12:41:11,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:11,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 115 [2022-11-16 12:41:11,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:12,133 INFO L130 PetriNetUnfolder]: 68/321 cut-off events. [2022-11-16 12:41:12,133 INFO L131 PetriNetUnfolder]: For 74/79 co-relation queries the response was YES. [2022-11-16 12:41:12,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 321 events. 68/321 cut-off events. For 74/79 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1442 event pairs, 21 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 556. Up to 71 conditions per place. [2022-11-16 12:41:12,139 INFO L137 encePairwiseOnDemand]: 103/115 looper letters, 41 selfloop transitions, 12 changer transitions 4/123 dead transitions. [2022-11-16 12:41:12,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 123 transitions, 448 flow [2022-11-16 12:41:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:41:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:41:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 593 transitions. [2022-11-16 12:41:12,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7366459627329193 [2022-11-16 12:41:12,143 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 593 transitions. [2022-11-16 12:41:12,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 593 transitions. [2022-11-16 12:41:12,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:12,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 593 transitions. [2022-11-16 12:41:12,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.71428571428571) internal successors, (593), 7 states have internal predecessors, (593), 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) [2022-11-16 12:41:12,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:12,148 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:12,148 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 253 flow. Second operand 7 states and 593 transitions. [2022-11-16 12:41:12,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 123 transitions, 448 flow [2022-11-16 12:41:12,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 123 transitions, 436 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:41:12,158 INFO L231 Difference]: Finished difference. Result has 109 places, 98 transitions, 299 flow [2022-11-16 12:41:12,158 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=299, PETRI_PLACES=109, PETRI_TRANSITIONS=98} [2022-11-16 12:41:12,159 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2022-11-16 12:41:12,159 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 98 transitions, 299 flow [2022-11-16 12:41:12,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2022-11-16 12:41:12,160 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:12,160 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:12,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:41:12,161 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:12,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:12,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1628841868, now seen corresponding path program 1 times [2022-11-16 12:41:12,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:12,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543271172] [2022-11-16 12:41:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:12,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:12,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:12,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543271172] [2022-11-16 12:41:12,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543271172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:12,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:12,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:41:12,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985935306] [2022-11-16 12:41:12,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:12,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:41:12,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:12,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:41:12,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:41:12,276 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 115 [2022-11-16 12:41:12,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 98 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 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) [2022-11-16 12:41:12,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:12,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 115 [2022-11-16 12:41:12,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:12,396 INFO L130 PetriNetUnfolder]: 59/264 cut-off events. [2022-11-16 12:41:12,396 INFO L131 PetriNetUnfolder]: For 103/108 co-relation queries the response was YES. [2022-11-16 12:41:12,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 264 events. 59/264 cut-off events. For 103/108 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1021 event pairs, 24 based on Foata normal form. 16/272 useless extension candidates. Maximal degree in co-relation 436. Up to 87 conditions per place. [2022-11-16 12:41:12,399 INFO L137 encePairwiseOnDemand]: 108/115 looper letters, 29 selfloop transitions, 7 changer transitions 1/103 dead transitions. [2022-11-16 12:41:12,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 103 transitions, 383 flow [2022-11-16 12:41:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:41:12,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:41:12,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 526 transitions. [2022-11-16 12:41:12,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7623188405797101 [2022-11-16 12:41:12,401 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 526 transitions. [2022-11-16 12:41:12,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 526 transitions. [2022-11-16 12:41:12,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:12,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 526 transitions. [2022-11-16 12:41:12,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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) [2022-11-16 12:41:12,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-16 12:41:12,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-16 12:41:12,406 INFO L175 Difference]: Start difference. First operand has 109 places, 98 transitions, 299 flow. Second operand 6 states and 526 transitions. [2022-11-16 12:41:12,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 103 transitions, 383 flow [2022-11-16 12:41:12,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 365 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:41:12,411 INFO L231 Difference]: Finished difference. Result has 108 places, 95 transitions, 280 flow [2022-11-16 12:41:12,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=280, PETRI_PLACES=108, PETRI_TRANSITIONS=95} [2022-11-16 12:41:12,412 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2022-11-16 12:41:12,412 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 95 transitions, 280 flow [2022-11-16 12:41:12,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 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) [2022-11-16 12:41:12,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:12,413 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:12,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:41:12,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:12,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:12,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1164540870, now seen corresponding path program 1 times [2022-11-16 12:41:12,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:12,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931175429] [2022-11-16 12:41:12,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:12,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:12,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:12,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:12,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931175429] [2022-11-16 12:41:12,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931175429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:12,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:12,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:41:12,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102215922] [2022-11-16 12:41:12,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:12,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:41:12,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:12,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:41:12,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:41:12,510 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 115 [2022-11-16 12:41:12,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 95 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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) [2022-11-16 12:41:12,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:12,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 115 [2022-11-16 12:41:12,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:12,675 INFO L130 PetriNetUnfolder]: 86/363 cut-off events. [2022-11-16 12:41:12,675 INFO L131 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2022-11-16 12:41:12,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 363 events. 86/363 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1725 event pairs, 4 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 477. Up to 85 conditions per place. [2022-11-16 12:41:12,678 INFO L137 encePairwiseOnDemand]: 105/115 looper letters, 48 selfloop transitions, 20 changer transitions 0/135 dead transitions. [2022-11-16 12:41:12,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 135 transitions, 549 flow [2022-11-16 12:41:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:41:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:41:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2022-11-16 12:41:12,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8504347826086956 [2022-11-16 12:41:12,681 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2022-11-16 12:41:12,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2022-11-16 12:41:12,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:12,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2022-11-16 12:41:12,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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) [2022-11-16 12:41:12,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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) [2022-11-16 12:41:12,685 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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) [2022-11-16 12:41:12,685 INFO L175 Difference]: Start difference. First operand has 108 places, 95 transitions, 280 flow. Second operand 5 states and 489 transitions. [2022-11-16 12:41:12,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 135 transitions, 549 flow [2022-11-16 12:41:12,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 135 transitions, 526 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-16 12:41:12,690 INFO L231 Difference]: Finished difference. Result has 109 places, 109 transitions, 406 flow [2022-11-16 12:41:12,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=109, PETRI_TRANSITIONS=109} [2022-11-16 12:41:12,692 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2022-11-16 12:41:12,692 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 109 transitions, 406 flow [2022-11-16 12:41:12,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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) [2022-11-16 12:41:12,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:12,693 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:12,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:41:12,693 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:12,694 INFO L85 PathProgramCache]: Analyzing trace with hash 767872226, now seen corresponding path program 2 times [2022-11-16 12:41:12,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:12,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019598680] [2022-11-16 12:41:12,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:12,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:12,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:12,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019598680] [2022-11-16 12:41:12,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019598680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:12,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:12,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:41:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990007467] [2022-11-16 12:41:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:12,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:41:12,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:12,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:41:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:41:12,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-16 12:41:12,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 406 flow. Second operand has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2022-11-16 12:41:12,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:12,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-16 12:41:12,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:13,183 INFO L130 PetriNetUnfolder]: 100/410 cut-off events. [2022-11-16 12:41:13,183 INFO L131 PetriNetUnfolder]: For 313/313 co-relation queries the response was YES. [2022-11-16 12:41:13,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977 conditions, 410 events. 100/410 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2164 event pairs, 22 based on Foata normal form. 6/412 useless extension candidates. Maximal degree in co-relation 594. Up to 108 conditions per place. [2022-11-16 12:41:13,187 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 45 selfloop transitions, 19 changer transitions 0/128 dead transitions. [2022-11-16 12:41:13,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 128 transitions, 599 flow [2022-11-16 12:41:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:41:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:41:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 583 transitions. [2022-11-16 12:41:13,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.724223602484472 [2022-11-16 12:41:13,189 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 583 transitions. [2022-11-16 12:41:13,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 583 transitions. [2022-11-16 12:41:13,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:13,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 583 transitions. [2022-11-16 12:41:13,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.28571428571429) internal successors, (583), 7 states have internal predecessors, (583), 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) [2022-11-16 12:41:13,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:13,194 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:13,194 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 406 flow. Second operand 7 states and 583 transitions. [2022-11-16 12:41:13,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 128 transitions, 599 flow [2022-11-16 12:41:13,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 128 transitions, 597 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-16 12:41:13,200 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 502 flow [2022-11-16 12:41:13,201 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=502, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2022-11-16 12:41:13,201 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 17 predicate places. [2022-11-16 12:41:13,202 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 502 flow [2022-11-16 12:41:13,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2022-11-16 12:41:13,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:13,203 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:13,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:41:13,203 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:13,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:13,204 INFO L85 PathProgramCache]: Analyzing trace with hash 435043958, now seen corresponding path program 1 times [2022-11-16 12:41:13,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:13,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587046193] [2022-11-16 12:41:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:13,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:13,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:13,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587046193] [2022-11-16 12:41:13,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587046193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:13,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:13,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:41:13,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899051673] [2022-11-16 12:41:13,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:13,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:41:13,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:13,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:41:13,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:41:13,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-16 12:41:13,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 502 flow. Second operand has 8 states, 8 states have (on average 77.75) internal successors, (622), 8 states have internal predecessors, (622), 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) [2022-11-16 12:41:13,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:13,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-16 12:41:13,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:13,678 INFO L130 PetriNetUnfolder]: 95/411 cut-off events. [2022-11-16 12:41:13,678 INFO L131 PetriNetUnfolder]: For 598/598 co-relation queries the response was YES. [2022-11-16 12:41:13,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 411 events. 95/411 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2148 event pairs, 9 based on Foata normal form. 6/416 useless extension candidates. Maximal degree in co-relation 881. Up to 95 conditions per place. [2022-11-16 12:41:13,682 INFO L137 encePairwiseOnDemand]: 103/115 looper letters, 41 selfloop transitions, 23 changer transitions 0/128 dead transitions. [2022-11-16 12:41:13,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 128 transitions, 674 flow [2022-11-16 12:41:13,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:41:13,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 12:41:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 660 transitions. [2022-11-16 12:41:13,685 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.717391304347826 [2022-11-16 12:41:13,685 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 660 transitions. [2022-11-16 12:41:13,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 660 transitions. [2022-11-16 12:41:13,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:13,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 660 transitions. [2022-11-16 12:41:13,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.5) internal successors, (660), 8 states have internal predecessors, (660), 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) [2022-11-16 12:41:13,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 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) [2022-11-16 12:41:13,690 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 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) [2022-11-16 12:41:13,690 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 502 flow. Second operand 8 states and 660 transitions. [2022-11-16 12:41:13,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 128 transitions, 674 flow [2022-11-16 12:41:13,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 128 transitions, 668 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-16 12:41:13,697 INFO L231 Difference]: Finished difference. Result has 121 places, 111 transitions, 536 flow [2022-11-16 12:41:13,697 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=536, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2022-11-16 12:41:13,698 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 21 predicate places. [2022-11-16 12:41:13,698 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 536 flow [2022-11-16 12:41:13,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 77.75) internal successors, (622), 8 states have internal predecessors, (622), 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) [2022-11-16 12:41:13,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:13,699 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:13,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:41:13,700 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:13,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1870255537, now seen corresponding path program 1 times [2022-11-16 12:41:13,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:13,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659394018] [2022-11-16 12:41:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:13,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:13,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:13,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659394018] [2022-11-16 12:41:13,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659394018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:13,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:13,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:41:13,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702310037] [2022-11-16 12:41:13,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:13,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:41:13,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:13,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:41:13,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:41:13,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 115 [2022-11-16 12:41:13,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2022-11-16 12:41:13,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:13,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 115 [2022-11-16 12:41:13,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:13,981 INFO L130 PetriNetUnfolder]: 108/433 cut-off events. [2022-11-16 12:41:13,981 INFO L131 PetriNetUnfolder]: For 798/815 co-relation queries the response was YES. [2022-11-16 12:41:13,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 433 events. 108/433 cut-off events. For 798/815 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2315 event pairs, 38 based on Foata normal form. 15/435 useless extension candidates. Maximal degree in co-relation 969. Up to 91 conditions per place. [2022-11-16 12:41:13,985 INFO L137 encePairwiseOnDemand]: 103/115 looper letters, 42 selfloop transitions, 12 changer transitions 0/130 dead transitions. [2022-11-16 12:41:13,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 130 transitions, 745 flow [2022-11-16 12:41:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:41:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:41:13,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 581 transitions. [2022-11-16 12:41:13,988 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2022-11-16 12:41:13,988 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 581 transitions. [2022-11-16 12:41:13,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 581 transitions. [2022-11-16 12:41:13,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:13,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 581 transitions. [2022-11-16 12:41:13,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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) [2022-11-16 12:41:13,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:13,993 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 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) [2022-11-16 12:41:13,993 INFO L175 Difference]: Start difference. First operand has 121 places, 111 transitions, 536 flow. Second operand 7 states and 581 transitions. [2022-11-16 12:41:13,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 130 transitions, 745 flow [2022-11-16 12:41:13,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 130 transitions, 720 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-16 12:41:14,001 INFO L231 Difference]: Finished difference. Result has 127 places, 114 transitions, 571 flow [2022-11-16 12:41:14,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=571, PETRI_PLACES=127, PETRI_TRANSITIONS=114} [2022-11-16 12:41:14,002 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 27 predicate places. [2022-11-16 12:41:14,002 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 114 transitions, 571 flow [2022-11-16 12:41:14,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2022-11-16 12:41:14,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:14,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:14,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:41:14,003 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:14,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1870255536, now seen corresponding path program 1 times [2022-11-16 12:41:14,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:14,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694271234] [2022-11-16 12:41:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:14,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:14,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:14,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694271234] [2022-11-16 12:41:14,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694271234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:14,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:14,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:41:14,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179994759] [2022-11-16 12:41:14,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:14,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:41:14,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:41:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:41:14,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 115 [2022-11-16 12:41:14,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 114 transitions, 571 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-11-16 12:41:14,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:14,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 115 [2022-11-16 12:41:14,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:14,203 INFO L130 PetriNetUnfolder]: 83/378 cut-off events. [2022-11-16 12:41:14,203 INFO L131 PetriNetUnfolder]: For 714/729 co-relation queries the response was YES. [2022-11-16 12:41:14,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 378 events. 83/378 cut-off events. For 714/729 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1945 event pairs, 44 based on Foata normal form. 40/414 useless extension candidates. Maximal degree in co-relation 928. Up to 136 conditions per place. [2022-11-16 12:41:14,207 INFO L137 encePairwiseOnDemand]: 108/115 looper letters, 33 selfloop transitions, 7 changer transitions 2/118 dead transitions. [2022-11-16 12:41:14,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 118 transitions, 679 flow [2022-11-16 12:41:14,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:41:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:41:14,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 439 transitions. [2022-11-16 12:41:14,210 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7634782608695653 [2022-11-16 12:41:14,210 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 439 transitions. [2022-11-16 12:41:14,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 439 transitions. [2022-11-16 12:41:14,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:14,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 439 transitions. [2022-11-16 12:41:14,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 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) [2022-11-16 12:41:14,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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) [2022-11-16 12:41:14,214 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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) [2022-11-16 12:41:14,215 INFO L175 Difference]: Start difference. First operand has 127 places, 114 transitions, 571 flow. Second operand 5 states and 439 transitions. [2022-11-16 12:41:14,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 118 transitions, 679 flow [2022-11-16 12:41:14,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 118 transitions, 653 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:41:14,223 INFO L231 Difference]: Finished difference. Result has 124 places, 111 transitions, 543 flow [2022-11-16 12:41:14,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=543, PETRI_PLACES=124, PETRI_TRANSITIONS=111} [2022-11-16 12:41:14,224 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 24 predicate places. [2022-11-16 12:41:14,224 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 543 flow [2022-11-16 12:41:14,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-11-16 12:41:14,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:14,225 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:14,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:41:14,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1154341035, now seen corresponding path program 1 times [2022-11-16 12:41:14,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:14,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449977433] [2022-11-16 12:41:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:14,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:14,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449977433] [2022-11-16 12:41:14,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449977433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:14,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:14,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:41:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095205790] [2022-11-16 12:41:14,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:14,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:41:14,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:14,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:41:14,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:41:14,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 115 [2022-11-16 12:41:14,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 543 flow. Second operand has 8 states, 8 states have (on average 76.75) internal successors, (614), 8 states have internal predecessors, (614), 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) [2022-11-16 12:41:14,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:14,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 115 [2022-11-16 12:41:14,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:14,636 INFO L130 PetriNetUnfolder]: 82/357 cut-off events. [2022-11-16 12:41:14,636 INFO L131 PetriNetUnfolder]: For 662/677 co-relation queries the response was YES. [2022-11-16 12:41:14,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 357 events. 82/357 cut-off events. For 662/677 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1762 event pairs, 24 based on Foata normal form. 20/375 useless extension candidates. Maximal degree in co-relation 860. Up to 69 conditions per place. [2022-11-16 12:41:14,639 INFO L137 encePairwiseOnDemand]: 101/115 looper letters, 28 selfloop transitions, 11 changer transitions 29/131 dead transitions. [2022-11-16 12:41:14,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 131 transitions, 780 flow [2022-11-16 12:41:14,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:41:14,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:41:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1006 transitions. [2022-11-16 12:41:14,643 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6729096989966555 [2022-11-16 12:41:14,643 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1006 transitions. [2022-11-16 12:41:14,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1006 transitions. [2022-11-16 12:41:14,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:14,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1006 transitions. [2022-11-16 12:41:14,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.38461538461539) internal successors, (1006), 13 states have internal predecessors, (1006), 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) [2022-11-16 12:41:14,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 115.0) internal successors, (1610), 14 states have internal predecessors, (1610), 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) [2022-11-16 12:41:14,650 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 115.0) internal successors, (1610), 14 states have internal predecessors, (1610), 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) [2022-11-16 12:41:14,650 INFO L175 Difference]: Start difference. First operand has 124 places, 111 transitions, 543 flow. Second operand 13 states and 1006 transitions. [2022-11-16 12:41:14,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 131 transitions, 780 flow [2022-11-16 12:41:14,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 131 transitions, 756 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:41:14,656 INFO L231 Difference]: Finished difference. Result has 129 places, 94 transitions, 431 flow [2022-11-16 12:41:14,657 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=431, PETRI_PLACES=129, PETRI_TRANSITIONS=94} [2022-11-16 12:41:14,657 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 29 predicate places. [2022-11-16 12:41:14,657 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 94 transitions, 431 flow [2022-11-16 12:41:14,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.75) internal successors, (614), 8 states have internal predecessors, (614), 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) [2022-11-16 12:41:14,658 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:41:14,658 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:14,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:41:14,659 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 12:41:14,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:41:14,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1819758835, now seen corresponding path program 1 times [2022-11-16 12:41:14,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:41:14,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535689195] [2022-11-16 12:41:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:41:14,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:41:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:41:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:41:14,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:41:14,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535689195] [2022-11-16 12:41:14,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535689195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:41:14,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:41:14,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:41:14,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194680374] [2022-11-16 12:41:14,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:41:14,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:41:14,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:41:14,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:41:14,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:41:14,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 115 [2022-11-16 12:41:14,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 94 transitions, 431 flow. Second operand has 8 states, 8 states have (on average 76.75) internal successors, (614), 8 states have internal predecessors, (614), 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) [2022-11-16 12:41:14,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:41:14,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 115 [2022-11-16 12:41:14,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:41:14,959 INFO L130 PetriNetUnfolder]: 45/222 cut-off events. [2022-11-16 12:41:14,959 INFO L131 PetriNetUnfolder]: For 317/329 co-relation queries the response was YES. [2022-11-16 12:41:14,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 222 events. 45/222 cut-off events. For 317/329 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 788 event pairs, 21 based on Foata normal form. 14/234 useless extension candidates. Maximal degree in co-relation 555. Up to 69 conditions per place. [2022-11-16 12:41:14,960 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 0 selfloop transitions, 0 changer transitions 101/101 dead transitions. [2022-11-16 12:41:14,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 101 transitions, 551 flow [2022-11-16 12:41:14,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:41:14,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:41:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 990 transitions. [2022-11-16 12:41:14,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6622073578595318 [2022-11-16 12:41:14,963 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 990 transitions. [2022-11-16 12:41:14,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 990 transitions. [2022-11-16 12:41:14,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:41:14,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 990 transitions. [2022-11-16 12:41:14,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.15384615384616) internal successors, (990), 13 states have internal predecessors, (990), 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) [2022-11-16 12:41:14,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 115.0) internal successors, (1610), 14 states have internal predecessors, (1610), 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) [2022-11-16 12:41:14,970 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 115.0) internal successors, (1610), 14 states have internal predecessors, (1610), 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) [2022-11-16 12:41:14,971 INFO L175 Difference]: Start difference. First operand has 129 places, 94 transitions, 431 flow. Second operand 13 states and 990 transitions. [2022-11-16 12:41:14,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 101 transitions, 551 flow [2022-11-16 12:41:14,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 101 transitions, 479 flow, removed 1 selfloop flow, removed 19 redundant places. [2022-11-16 12:41:14,975 INFO L231 Difference]: Finished difference. Result has 112 places, 0 transitions, 0 flow [2022-11-16 12:41:14,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=112, PETRI_TRANSITIONS=0} [2022-11-16 12:41:14,976 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 12 predicate places. [2022-11-16 12:41:14,976 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 0 transitions, 0 flow [2022-11-16 12:41:14,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.75) internal successors, (614), 8 states have internal predecessors, (614), 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) [2022-11-16 12:41:14,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-16 12:41:14,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-16 12:41:14,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-16 12:41:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-16 12:41:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-16 12:41:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-16 12:41:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-16 12:41:14,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-16 12:41:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2022-11-16 12:41:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-16 12:41:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-16 12:41:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-16 12:41:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-16 12:41:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-16 12:41:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-16 12:41:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-16 12:41:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-16 12:41:14,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-16 12:41:14,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:41:14,983 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:41:14,989 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:41:14,989 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:41:14,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:41:14 BasicIcfg [2022-11-16 12:41:14,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:41:14,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:41:14,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:41:14,997 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:41:14,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:41:09" (3/4) ... [2022-11-16 12:41:15,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:41:15,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 12:41:15,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 12:41:15,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-16 12:41:15,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:41:15,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:41:15,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:41:15,041 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:41:15,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:41:15,042 INFO L158 Benchmark]: Toolchain (without parser) took 6454.00ms. Allocated memory was 142.6MB in the beginning and 237.0MB in the end (delta: 94.4MB). Free memory was 106.7MB in the beginning and 98.9MB in the end (delta: 7.9MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. [2022-11-16 12:41:15,042 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 113.8MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:41:15,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.89ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 115.4MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:41:15,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.11ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:41:15,043 INFO L158 Benchmark]: Boogie Preprocessor took 23.99ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 112.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:41:15,044 INFO L158 Benchmark]: RCFGBuilder took 701.65ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 91.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 12:41:15,044 INFO L158 Benchmark]: TraceAbstraction took 5245.43ms. Allocated memory was 142.6MB in the beginning and 237.0MB in the end (delta: 94.4MB). Free memory was 90.8MB in the beginning and 102.0MB in the end (delta: -11.2MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2022-11-16 12:41:15,045 INFO L158 Benchmark]: Witness Printer took 45.30ms. Allocated memory is still 237.0MB. Free memory was 102.0MB in the beginning and 98.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:41:15,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 113.8MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.89ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 115.4MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.11ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.99ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 112.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 701.65ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 91.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5245.43ms. Allocated memory was 142.6MB in the beginning and 237.0MB in the end (delta: 94.4MB). Free memory was 90.8MB in the beginning and 102.0MB in the end (delta: -11.2MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. * Witness Printer took 45.30ms. Allocated memory is still 237.0MB. Free memory was 102.0MB in the beginning and 98.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 148 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 423 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 423 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 930 IncrementalHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 87 mSDtfsCounter, 930 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=8, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 680 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 669 ConstructedInterpolants, 0 QuantifiedInterpolants, 1725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:41:15,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3be6bb6-280f-4aca-94d3-df8d1f510a81/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE