./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:09,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:09,887 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:03:09,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:09,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:09,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:09,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:09,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:09,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:09,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:09,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:09,931 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:09,931 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:09,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:09,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:03:09,934 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:09,935 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:03:09,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:09,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:09,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:03:09,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:09,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:03:09,940 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:03:09,940 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:03:09,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:09,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:03:09,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:09,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:09,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:09,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:09,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:09,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:09,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:09,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:03:09,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:03:09,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:03:09,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:09,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:03:09,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:09,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:09,950 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:09,951 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2023-11-12 02:03:10,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:10,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:10,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:10,370 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:10,372 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:10,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2023-11-12 02:03:13,844 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:14,156 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:14,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2023-11-12 02:03:14,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/data/28bec8ccf/70b85b25c83a4076b9b5607aae88096b/FLAGb943eace7 [2023-11-12 02:03:14,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/data/28bec8ccf/70b85b25c83a4076b9b5607aae88096b [2023-11-12 02:03:14,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:14,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:14,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:14,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:14,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:14,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:14" (1/1) ... [2023-11-12 02:03:14,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736b1349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:14, skipping insertion in model container [2023-11-12 02:03:14,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:14" (1/1) ... [2023-11-12 02:03:14,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:14,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:14,897 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:03:14,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:15,019 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:03:15,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15 WrapperNode [2023-11-12 02:03:15,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:15,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:15,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:03:15,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:03:15,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,077 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-12 02:03:15,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:15,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:03:15,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:03:15,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:03:15,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:03:15,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:03:15,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:03:15,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:03:15,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (1/1) ... [2023-11-12 02:03:15,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:15,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:15,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:03:15,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:03:15,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:03:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:03:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:03:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:03:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:03:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:03:15,216 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:03:15,216 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:03:15,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:03:15,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:03:15,218 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:03:15,389 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:03:15,392 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:03:15,613 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:03:15,622 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:03:15,623 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:03:15,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:15 BoogieIcfgContainer [2023-11-12 02:03:15,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:03:15,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:03:15,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:03:15,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:03:15,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:03:14" (1/3) ... [2023-11-12 02:03:15,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c7dbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:15, skipping insertion in model container [2023-11-12 02:03:15,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:15" (2/3) ... [2023-11-12 02:03:15,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c7dbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:15, skipping insertion in model container [2023-11-12 02:03:15,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:15" (3/3) ... [2023-11-12 02:03:15,636 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2023-11-12 02:03:15,646 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:03:15,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:03:15,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:03:15,660 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:03:15,720 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:03:15,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 86 transitions, 176 flow [2023-11-12 02:03:15,811 INFO L124 PetriNetUnfolderBase]: 4/85 cut-off events. [2023-11-12 02:03:15,811 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:15,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 4/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-11-12 02:03:15,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 86 transitions, 176 flow [2023-11-12 02:03:15,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 85 transitions, 173 flow [2023-11-12 02:03:15,829 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:03:15,841 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 85 transitions, 173 flow [2023-11-12 02:03:15,845 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 85 transitions, 173 flow [2023-11-12 02:03:15,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 173 flow [2023-11-12 02:03:15,933 INFO L124 PetriNetUnfolderBase]: 4/85 cut-off events. [2023-11-12 02:03:15,934 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:15,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 4/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-11-12 02:03:15,937 INFO L119 LiptonReduction]: Number of co-enabled transitions 1120 [2023-11-12 02:03:18,697 INFO L134 LiptonReduction]: Checked pairs total: 1460 [2023-11-12 02:03:18,699 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-11-12 02:03:18,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:03:18,748 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=LoopHeads, 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;@51c14bb9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:03:18,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-12 02:03:18,750 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:03:18,751 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-12 02:03:18,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:18,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:18,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-12 02:03:18,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:18,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:18,759 INFO L85 PathProgramCache]: Analyzing trace with hash 10473, now seen corresponding path program 1 times [2023-11-12 02:03:18,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:18,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208523341] [2023-11-12 02:03:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:18,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:18,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:18,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:18,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208523341] [2023-11-12 02:03:18,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208523341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:18,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:18,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:03:18,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35978249] [2023-11-12 02:03:19,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:19,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:19,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:19,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:19,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 172 [2023-11-12 02:03:19,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2023-11-12 02:03:19,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:19,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 172 [2023-11-12 02:03:19,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:19,117 INFO L124 PetriNetUnfolderBase]: 37/90 cut-off events. [2023-11-12 02:03:19,117 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:19,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 283 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-11-12 02:03:19,120 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-11-12 02:03:19,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-11-12 02:03:19,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:19,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:03:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-11-12 02:03:19,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4844961240310077 [2023-11-12 02:03:19,136 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-11-12 02:03:19,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-11-12 02:03:19,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:19,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-11-12 02:03:19,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2023-11-12 02:03:19,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2023-11-12 02:03:19,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2023-11-12 02:03:19,153 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 250 transitions. [2023-11-12 02:03:19,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-11-12 02:03:19,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:03:19,157 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-11-12 02:03:19,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-11-12 02:03:19,163 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-11-12 02:03:19,164 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-11-12 02:03:19,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2023-11-12 02:03:19,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:19,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:03:19,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:03:19,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:19,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:19,166 INFO L85 PathProgramCache]: Analyzing trace with hash 325464, now seen corresponding path program 1 times [2023-11-12 02:03:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:19,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559260246] [2023-11-12 02:03:19,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:19,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:19,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:19,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559260246] [2023-11-12 02:03:19,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559260246] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:19,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616713961] [2023-11-12 02:03:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:19,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:19,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:19,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:19,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:03:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:19,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:19,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:19,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:19,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616713961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:19,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:03:19,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-12 02:03:19,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766567230] [2023-11-12 02:03:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:19,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:19,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:19,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:19,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:03:19,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 172 [2023-11-12 02:03:19,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2023-11-12 02:03:19,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:19,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 172 [2023-11-12 02:03:19,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:19,523 INFO L124 PetriNetUnfolderBase]: 37/89 cut-off events. [2023-11-12 02:03:19,533 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:19,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 87 conditions per place. [2023-11-12 02:03:19,535 INFO L140 encePairwiseOnDemand]: 168/172 looper letters, 14 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-11-12 02:03:19,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 80 flow [2023-11-12 02:03:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:03:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2023-11-12 02:03:19,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2023-11-12 02:03:19,541 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 322 transitions. [2023-11-12 02:03:19,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 322 transitions. [2023-11-12 02:03:19,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:19,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 322 transitions. [2023-11-12 02:03:19,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2023-11-12 02:03:19,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2023-11-12 02:03:19,554 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2023-11-12 02:03:19,554 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 4 states and 322 transitions. [2023-11-12 02:03:19,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 80 flow [2023-11-12 02:03:19,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-12 02:03:19,556 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 48 flow [2023-11-12 02:03:19,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-11-12 02:03:19,557 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2023-11-12 02:03:19,557 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 48 flow [2023-11-12 02:03:19,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2023-11-12 02:03:19,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:19,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:03:19,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:19,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:19,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:19,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:19,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1107076280, now seen corresponding path program 1 times [2023-11-12 02:03:19,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:19,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333399203] [2023-11-12 02:03:19,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:19,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:19,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:19,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333399203] [2023-11-12 02:03:19,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333399203] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:19,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74424772] [2023-11-12 02:03:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:19,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:19,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:19,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:19,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:03:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:20,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:03:20,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:20,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:20,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74424772] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:20,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:20,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-12 02:03:20,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390496097] [2023-11-12 02:03:20,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:20,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:20,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:20,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:20,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 172 [2023-11-12 02:03:20,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 48 flow. Second operand has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 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) [2023-11-12 02:03:20,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:20,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 172 [2023-11-12 02:03:20,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:20,209 INFO L124 PetriNetUnfolderBase]: 37/92 cut-off events. [2023-11-12 02:03:20,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:20,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 3/67 useless extension candidates. Maximal degree in co-relation 172. Up to 89 conditions per place. [2023-11-12 02:03:20,214 INFO L140 encePairwiseOnDemand]: 169/172 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-11-12 02:03:20,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 100 flow [2023-11-12 02:03:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:03:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:03:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2023-11-12 02:03:20,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2023-11-12 02:03:20,222 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 473 transitions. [2023-11-12 02:03:20,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 473 transitions. [2023-11-12 02:03:20,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:20,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 473 transitions. [2023-11-12 02:03:20,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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) [2023-11-12 02:03:20,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2023-11-12 02:03:20,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2023-11-12 02:03:20,234 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 48 flow. Second operand 6 states and 473 transitions. [2023-11-12 02:03:20,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 100 flow [2023-11-12 02:03:20,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:03:20,236 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 80 flow [2023-11-12 02:03:20,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=80, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-11-12 02:03:20,238 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-11-12 02:03:20,238 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 80 flow [2023-11-12 02:03:20,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 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) [2023-11-12 02:03:20,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:20,240 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-11-12 02:03:20,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:20,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:20,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:20,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:20,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1010662969, now seen corresponding path program 2 times [2023-11-12 02:03:20,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:20,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780736596] [2023-11-12 02:03:20,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:20,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:20,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:20,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780736596] [2023-11-12 02:03:20,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780736596] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:20,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726592806] [2023-11-12 02:03:20,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:03:20,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:20,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:20,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:20,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:03:20,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:03:20,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:03:20,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:03:20,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:20,832 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-12 02:03:20,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:03:20,933 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-12 02:03:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 02:03:20,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:20,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726592806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:20,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:03:20,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-11-12 02:03:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371688906] [2023-11-12 02:03:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:20,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:03:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:20,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:03:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:03:21,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 172 [2023-11-12 02:03:21,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2023-11-12 02:03:21,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:21,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 172 [2023-11-12 02:03:21,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:21,254 INFO L124 PetriNetUnfolderBase]: 21/60 cut-off events. [2023-11-12 02:03:21,254 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:03:21,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 60 events. 21/60 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 147 event pairs, 6 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 114. Up to 41 conditions per place. [2023-11-12 02:03:21,256 INFO L140 encePairwiseOnDemand]: 164/172 looper letters, 20 selfloop transitions, 5 changer transitions 4/29 dead transitions. [2023-11-12 02:03:21,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 156 flow [2023-11-12 02:03:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:03:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-11-12 02:03:21,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48691860465116277 [2023-11-12 02:03:21,263 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-11-12 02:03:21,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-11-12 02:03:21,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:21,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-11-12 02:03:21,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2023-11-12 02:03:21,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2023-11-12 02:03:21,269 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2023-11-12 02:03:21,269 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 80 flow. Second operand 4 states and 335 transitions. [2023-11-12 02:03:21,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 156 flow [2023-11-12 02:03:21,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 142 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-12 02:03:21,279 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 100 flow [2023-11-12 02:03:21,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-11-12 02:03:21,282 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 12 predicate places. [2023-11-12 02:03:21,283 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 100 flow [2023-11-12 02:03:21,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2023-11-12 02:03:21,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:21,287 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:21,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-12 02:03:21,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:21,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:21,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:21,494 INFO L85 PathProgramCache]: Analyzing trace with hash -974215555, now seen corresponding path program 1 times [2023-11-12 02:03:21,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:21,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593840234] [2023-11-12 02:03:21,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:21,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:21,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:21,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593840234] [2023-11-12 02:03:21,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593840234] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:21,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797529138] [2023-11-12 02:03:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:21,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:21,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:21,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:21,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:03:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:21,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:03:21,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:21,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:21,855 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:21,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797529138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:21,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:21,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-12 02:03:21,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867428876] [2023-11-12 02:03:21,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:21,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:03:21,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:21,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:03:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:03:21,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 172 [2023-11-12 02:03:21,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 100 flow. Second operand has 13 states, 13 states have (on average 76.53846153846153) internal successors, (995), 13 states have internal predecessors, (995), 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) [2023-11-12 02:03:21,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:21,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 172 [2023-11-12 02:03:21,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:22,020 INFO L124 PetriNetUnfolderBase]: 17/58 cut-off events. [2023-11-12 02:03:22,021 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2023-11-12 02:03:22,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 58 events. 17/58 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 118 event pairs, 14 based on Foata normal form. 6/60 useless extension candidates. Maximal degree in co-relation 130. Up to 49 conditions per place. [2023-11-12 02:03:22,024 INFO L140 encePairwiseOnDemand]: 169/172 looper letters, 17 selfloop transitions, 11 changer transitions 0/28 dead transitions. [2023-11-12 02:03:22,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 28 transitions, 192 flow [2023-11-12 02:03:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:03:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:03:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 932 transitions. [2023-11-12 02:03:22,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45155038759689925 [2023-11-12 02:03:22,029 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 932 transitions. [2023-11-12 02:03:22,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 932 transitions. [2023-11-12 02:03:22,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:22,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 932 transitions. [2023-11-12 02:03:22,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 77.66666666666667) internal successors, (932), 12 states have internal predecessors, (932), 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) [2023-11-12 02:03:22,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 172.0) internal successors, (2236), 13 states have internal predecessors, (2236), 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) [2023-11-12 02:03:22,042 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 172.0) internal successors, (2236), 13 states have internal predecessors, (2236), 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) [2023-11-12 02:03:22,043 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 100 flow. Second operand 12 states and 932 transitions. [2023-11-12 02:03:22,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 28 transitions, 192 flow [2023-11-12 02:03:22,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 28 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:03:22,049 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 180 flow [2023-11-12 02:03:22,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=180, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2023-11-12 02:03:22,052 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-11-12 02:03:22,052 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 180 flow [2023-11-12 02:03:22,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 76.53846153846153) internal successors, (995), 13 states have internal predecessors, (995), 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) [2023-11-12 02:03:22,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:22,053 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:22,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:22,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:22,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:22,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:22,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1601993291, now seen corresponding path program 2 times [2023-11-12 02:03:22,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:22,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366307090] [2023-11-12 02:03:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:22,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:03:22,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:22,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366307090] [2023-11-12 02:03:22,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366307090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:22,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:22,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:03:22,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702554126] [2023-11-12 02:03:22,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:22,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:22,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:22,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:22,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:22,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 172 [2023-11-12 02:03:22,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 180 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2023-11-12 02:03:22,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:22,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 172 [2023-11-12 02:03:22,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:23,125 INFO L124 PetriNetUnfolderBase]: 16/55 cut-off events. [2023-11-12 02:03:23,126 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-11-12 02:03:23,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 55 events. 16/55 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 113 event pairs, 2 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 120. Up to 17 conditions per place. [2023-11-12 02:03:23,127 INFO L140 encePairwiseOnDemand]: 165/172 looper letters, 26 selfloop transitions, 7 changer transitions 5/38 dead transitions. [2023-11-12 02:03:23,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 278 flow [2023-11-12 02:03:23,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:03:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:03:23,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 513 transitions. [2023-11-12 02:03:23,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4260797342192691 [2023-11-12 02:03:23,131 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 513 transitions. [2023-11-12 02:03:23,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 513 transitions. [2023-11-12 02:03:23,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:23,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 513 transitions. [2023-11-12 02:03:23,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 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) [2023-11-12 02:03:23,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 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) [2023-11-12 02:03:23,139 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 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) [2023-11-12 02:03:23,139 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 180 flow. Second operand 7 states and 513 transitions. [2023-11-12 02:03:23,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 278 flow [2023-11-12 02:03:23,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 230 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-12 02:03:23,145 INFO L231 Difference]: Finished difference. Result has 49 places, 27 transitions, 140 flow [2023-11-12 02:03:23,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=140, PETRI_PLACES=49, PETRI_TRANSITIONS=27} [2023-11-12 02:03:23,146 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-11-12 02:03:23,147 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 27 transitions, 140 flow [2023-11-12 02:03:23,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2023-11-12 02:03:23,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:23,148 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:23,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:03:23,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:23,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:23,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1567137820, now seen corresponding path program 1 times [2023-11-12 02:03:23,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:23,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126441297] [2023-11-12 02:03:23,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:23,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:03:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:23,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126441297] [2023-11-12 02:03:23,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126441297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:23,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:23,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:03:23,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263260] [2023-11-12 02:03:23,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:23,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:23,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:23,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:23,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:23,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 172 [2023-11-12 02:03:23,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 27 transitions, 140 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2023-11-12 02:03:23,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:23,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 172 [2023-11-12 02:03:23,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:23,937 INFO L124 PetriNetUnfolderBase]: 13/48 cut-off events. [2023-11-12 02:03:23,937 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2023-11-12 02:03:23,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 48 events. 13/48 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 82 event pairs, 2 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 115. Up to 16 conditions per place. [2023-11-12 02:03:23,939 INFO L140 encePairwiseOnDemand]: 165/172 looper letters, 21 selfloop transitions, 4 changer transitions 9/34 dead transitions. [2023-11-12 02:03:23,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 34 transitions, 218 flow [2023-11-12 02:03:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:03:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:03:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 509 transitions. [2023-11-12 02:03:23,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4227574750830565 [2023-11-12 02:03:23,944 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 509 transitions. [2023-11-12 02:03:23,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 509 transitions. [2023-11-12 02:03:23,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:23,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 509 transitions. [2023-11-12 02:03:23,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 72.71428571428571) internal successors, (509), 7 states have internal predecessors, (509), 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) [2023-11-12 02:03:23,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 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) [2023-11-12 02:03:23,951 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 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) [2023-11-12 02:03:23,952 INFO L175 Difference]: Start difference. First operand has 49 places, 27 transitions, 140 flow. Second operand 7 states and 509 transitions. [2023-11-12 02:03:23,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 34 transitions, 218 flow [2023-11-12 02:03:23,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 34 transitions, 205 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:03:23,956 INFO L231 Difference]: Finished difference. Result has 49 places, 23 transitions, 120 flow [2023-11-12 02:03:23,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=120, PETRI_PLACES=49, PETRI_TRANSITIONS=23} [2023-11-12 02:03:23,957 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-11-12 02:03:23,957 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 23 transitions, 120 flow [2023-11-12 02:03:23,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2023-11-12 02:03:23,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:23,959 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:23,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:03:23,959 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:23,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:23,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1566168732, now seen corresponding path program 1 times [2023-11-12 02:03:23,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:23,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068516492] [2023-11-12 02:03:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:24,417 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:03:24,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:24,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068516492] [2023-11-12 02:03:24,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068516492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:24,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:24,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:03:24,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860100893] [2023-11-12 02:03:24,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:24,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:24,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:24,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 172 [2023-11-12 02:03:24,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 23 transitions, 120 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2023-11-12 02:03:24,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:24,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 172 [2023-11-12 02:03:24,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:24,742 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2023-11-12 02:03:24,742 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-11-12 02:03:24,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 37 events. 8/37 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 3 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 85. Up to 15 conditions per place. [2023-11-12 02:03:24,743 INFO L140 encePairwiseOnDemand]: 166/172 looper letters, 20 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2023-11-12 02:03:24,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 29 transitions, 202 flow [2023-11-12 02:03:24,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:03:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:03:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 572 transitions. [2023-11-12 02:03:24,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41569767441860467 [2023-11-12 02:03:24,747 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 572 transitions. [2023-11-12 02:03:24,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 572 transitions. [2023-11-12 02:03:24,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:24,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 572 transitions. [2023-11-12 02:03:24,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 71.5) internal successors, (572), 8 states have internal predecessors, (572), 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) [2023-11-12 02:03:24,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 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) [2023-11-12 02:03:24,755 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 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) [2023-11-12 02:03:24,756 INFO L175 Difference]: Start difference. First operand has 49 places, 23 transitions, 120 flow. Second operand 8 states and 572 transitions. [2023-11-12 02:03:24,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 29 transitions, 202 flow [2023-11-12 02:03:24,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 29 transitions, 190 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:03:24,759 INFO L231 Difference]: Finished difference. Result has 48 places, 27 transitions, 156 flow [2023-11-12 02:03:24,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=156, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2023-11-12 02:03:24,760 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-11-12 02:03:24,760 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 156 flow [2023-11-12 02:03:24,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2023-11-12 02:03:24,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:24,761 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:24,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:03:24,761 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:24,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1566152026, now seen corresponding path program 1 times [2023-11-12 02:03:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531731669] [2023-11-12 02:03:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:24,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:03:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:25,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531731669] [2023-11-12 02:03:25,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531731669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:25,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:25,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:03:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387268555] [2023-11-12 02:03:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:25,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:25,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 172 [2023-11-12 02:03:25,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 27 transitions, 156 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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) [2023-11-12 02:03:25,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:25,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 172 [2023-11-12 02:03:25,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:25,433 INFO L124 PetriNetUnfolderBase]: 5/32 cut-off events. [2023-11-12 02:03:25,433 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-11-12 02:03:25,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 32 events. 5/32 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 96. Up to 15 conditions per place. [2023-11-12 02:03:25,435 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 17 selfloop transitions, 4 changer transitions 6/27 dead transitions. [2023-11-12 02:03:25,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 27 transitions, 200 flow [2023-11-12 02:03:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:03:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:03:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 577 transitions. [2023-11-12 02:03:25,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41933139534883723 [2023-11-12 02:03:25,440 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 577 transitions. [2023-11-12 02:03:25,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 577 transitions. [2023-11-12 02:03:25,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:25,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 577 transitions. [2023-11-12 02:03:25,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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) [2023-11-12 02:03:25,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 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) [2023-11-12 02:03:25,450 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 172.0) internal successors, (1548), 9 states have internal predecessors, (1548), 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) [2023-11-12 02:03:25,450 INFO L175 Difference]: Start difference. First operand has 48 places, 27 transitions, 156 flow. Second operand 8 states and 577 transitions. [2023-11-12 02:03:25,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 27 transitions, 200 flow [2023-11-12 02:03:25,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 27 transitions, 183 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:03:25,454 INFO L231 Difference]: Finished difference. Result has 49 places, 20 transitions, 108 flow [2023-11-12 02:03:25,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=108, PETRI_PLACES=49, PETRI_TRANSITIONS=20} [2023-11-12 02:03:25,455 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-11-12 02:03:25,456 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 20 transitions, 108 flow [2023-11-12 02:03:25,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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) [2023-11-12 02:03:25,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:25,457 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:25,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:03:25,457 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-12 02:03:25,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:25,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1566151992, now seen corresponding path program 2 times [2023-11-12 02:03:25,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:25,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030271531] [2023-11-12 02:03:25,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:25,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-12 02:03:25,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:25,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030271531] [2023-11-12 02:03:25,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030271531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:25,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:25,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:03:25,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109598623] [2023-11-12 02:03:25,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:25,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:26,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 172 [2023-11-12 02:03:26,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 20 transitions, 108 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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) [2023-11-12 02:03:26,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:26,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 172 [2023-11-12 02:03:26,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:26,157 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-11-12 02:03:26,157 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-11-12 02:03:26,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 21 events. 2/21 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 77. Up to 15 conditions per place. [2023-11-12 02:03:26,158 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-11-12 02:03:26,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 20 transitions, 144 flow [2023-11-12 02:03:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:03:26,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:03:26,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 431 transitions. [2023-11-12 02:03:26,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4176356589147287 [2023-11-12 02:03:26,162 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 431 transitions. [2023-11-12 02:03:26,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 431 transitions. [2023-11-12 02:03:26,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:26,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 431 transitions. [2023-11-12 02:03:26,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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) [2023-11-12 02:03:26,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2023-11-12 02:03:26,169 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2023-11-12 02:03:26,169 INFO L175 Difference]: Start difference. First operand has 49 places, 20 transitions, 108 flow. Second operand 6 states and 431 transitions. [2023-11-12 02:03:26,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 20 transitions, 144 flow [2023-11-12 02:03:26,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 20 transitions, 131 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-11-12 02:03:26,171 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-11-12 02:03:26,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-11-12 02:03:26,172 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-11-12 02:03:26,172 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-11-12 02:03:26,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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) [2023-11-12 02:03:26,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-11-12 02:03:26,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-11-12 02:03:26,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-11-12 02:03:26,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-11-12 02:03:26,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-12 02:03:26,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-11-12 02:03:26,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-11-12 02:03:26,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-11-12 02:03:26,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-11-12 02:03:26,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:03:26,179 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2023-11-12 02:03:26,185 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:03:26,185 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:03:26,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:03:26 BasicIcfg [2023-11-12 02:03:26,190 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:03:26,190 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:03:26,191 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:03:26,191 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:03:26,191 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:15" (3/4) ... [2023-11-12 02:03:26,193 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:03:26,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-12 02:03:26,203 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 02:03:26,203 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:03:26,203 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:03:26,290 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:03:26,291 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:03:26,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:03:26,292 INFO L158 Benchmark]: Toolchain (without parser) took 12073.03ms. Allocated memory was 163.6MB in the beginning and 245.4MB in the end (delta: 81.8MB). Free memory was 115.7MB in the beginning and 90.7MB in the end (delta: 25.0MB). Peak memory consumption was 108.9MB. Max. memory is 16.1GB. [2023-11-12 02:03:26,292 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 163.6MB. Free memory is still 137.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:03:26,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.42ms. Allocated memory is still 163.6MB. Free memory was 115.7MB in the beginning and 87.8MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-12 02:03:26,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.42ms. Allocated memory is still 163.6MB. Free memory was 87.8MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:26,294 INFO L158 Benchmark]: Boogie Preprocessor took 37.32ms. Allocated memory is still 163.6MB. Free memory was 85.6MB in the beginning and 83.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:26,294 INFO L158 Benchmark]: RCFGBuilder took 508.97ms. Allocated memory is still 163.6MB. Free memory was 83.9MB in the beginning and 68.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:03:26,295 INFO L158 Benchmark]: TraceAbstraction took 10561.76ms. Allocated memory was 163.6MB in the beginning and 245.4MB in the end (delta: 81.8MB). Free memory was 68.5MB in the beginning and 94.9MB in the end (delta: -26.4MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2023-11-12 02:03:26,295 INFO L158 Benchmark]: Witness Printer took 100.55ms. Allocated memory is still 245.4MB. Free memory was 94.9MB in the beginning and 90.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:03:26,298 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 163.6MB. Free memory is still 137.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.42ms. Allocated memory is still 163.6MB. Free memory was 115.7MB in the beginning and 87.8MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.42ms. Allocated memory is still 163.6MB. Free memory was 87.8MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.32ms. Allocated memory is still 163.6MB. Free memory was 85.6MB in the beginning and 83.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.97ms. Allocated memory is still 163.6MB. Free memory was 83.9MB in the beginning and 68.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10561.76ms. Allocated memory was 163.6MB in the beginning and 245.4MB in the end (delta: 81.8MB). Free memory was 68.5MB in the beginning and 94.9MB in the end (delta: -26.4MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Witness Printer took 100.55ms. Allocated memory is still 245.4MB. Free memory was 94.9MB in the beginning and 90.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 85 PlacesBefore, 21 PlacesAfterwards, 85 TransitionsBefore, 18 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 86 TotalNumberOfCompositions, 1460 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1072, independent: 989, independent conditional: 0, independent unconditional: 989, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 652, independent: 634, independent conditional: 0, independent unconditional: 634, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1072, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 652, unknown conditional: 0, unknown unconditional: 652] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: 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 3 procedures, 112 locations, 9 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: 10.4s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 689 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 508 mSDsluCounter, 283 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 269 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1293 IncrementalHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 14 mSDtfsCounter, 1293 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=5, InterpolantAutomatonStates: 65, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 152 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1187 SizeOfPredicates, 3 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 286/330 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:03:26,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1daf85f4-76c8-463c-ba11-14235eee592e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE