./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:05:47,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:05:47,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:05:47,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:05:47,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:05:47,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:05:47,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:05:47,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:05:47,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:05:47,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:05:47,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:05:47,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:05:47,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:05:47,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:05:47,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:05:47,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:05:47,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:05:47,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:05:47,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:05:47,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:05:47,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:05:47,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:05:47,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:05:47,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:05:47,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:05:47,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:05:47,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:05:47,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:05:47,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:05:47,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:05:47,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:05:47,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:05:47,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:05:47,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:05:47,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:05:47,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:05:47,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:05:47,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:05:47,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:05:47,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:05:47,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:05:47,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 21:05:47,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:05:47,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:05:47,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:05:47,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:05:47,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:05:47,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:05:47,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:05:47,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:05:47,547 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:05:47,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:05:47,549 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:05:47,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:05:47,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:05:47,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:05:47,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:05:47,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:05:47,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:05:47,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:05:47,551 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 21:05:47,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:05:47,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:05:47,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:05:47,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:05:47,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:05:47,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:05:47,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:05:47,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:05:47,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:05:47,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:05:47,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:05:47,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:05:47,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:05:47,555 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:05:47,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:05:47,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:05:47,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-11-18 21:05:47,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:05:47,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:05:48,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:05:48,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:05:48,003 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:05:48,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-18 21:05:48,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/data/d61c60303/21a380a0b93b4442a01c3f60207def13/FLAG0a74e3b67 [2022-11-18 21:05:48,811 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:05:48,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-18 21:05:48,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/data/d61c60303/21a380a0b93b4442a01c3f60207def13/FLAG0a74e3b67 [2022-11-18 21:05:49,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/data/d61c60303/21a380a0b93b4442a01c3f60207def13 [2022-11-18 21:05:49,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:05:49,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:05:49,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:05:49,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:05:49,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:05:49,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:05:49" (1/1) ... [2022-11-18 21:05:49,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d1768a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:49, skipping insertion in model container [2022-11-18 21:05:49,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:05:49" (1/1) ... [2022-11-18 21:05:49,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:05:49,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:05:49,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:05:49,917 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:05:49,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:05:50,019 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:05:50,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50 WrapperNode [2022-11-18 21:05:50,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:05:50,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:05:50,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:05:50,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:05:50,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,078 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-11-18 21:05:50,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:05:50,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:05:50,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:05:50,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:05:50,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,110 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:05:50,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:05:50,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:05:50,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:05:50,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (1/1) ... [2022-11-18 21:05:50,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:05:50,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:50,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:05:50,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:05:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:05:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:05:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:05:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:05:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 21:05:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:05:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 21:05:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 21:05:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:05:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:05:50,262 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:05:50,507 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:05:50,509 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:05:50,767 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:05:50,777 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:05:50,777 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:05:50,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:05:50 BoogieIcfgContainer [2022-11-18 21:05:50,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:05:50,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:05:50,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:05:50,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:05:50,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:05:49" (1/3) ... [2022-11-18 21:05:50,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47067dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:05:50, skipping insertion in model container [2022-11-18 21:05:50,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:50" (2/3) ... [2022-11-18 21:05:50,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47067dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:05:50, skipping insertion in model container [2022-11-18 21:05:50,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:05:50" (3/3) ... [2022-11-18 21:05:50,793 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-11-18 21:05:50,804 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:05:50,818 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:05:50,819 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 21:05:50,819 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:05:50,952 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 21:05:51,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 94 transitions, 193 flow [2022-11-18 21:05:51,105 INFO L130 PetriNetUnfolder]: 4/93 cut-off events. [2022-11-18 21:05:51,112 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:05:51,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 4/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-18 21:05:51,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 94 transitions, 193 flow [2022-11-18 21:05:51,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 93 transitions, 189 flow [2022-11-18 21:05:51,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:05:51,169 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32e18a81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:05:51,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-18 21:05:51,193 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2022-11-18 21:05:51,193 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:05:51,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:51,195 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:51,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:51,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:51,202 INFO L85 PathProgramCache]: Analyzing trace with hash 651890107, now seen corresponding path program 1 times [2022-11-18 21:05:51,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:51,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322917331] [2022-11-18 21:05:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:51,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:51,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:51,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322917331] [2022-11-18 21:05:51,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322917331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:05:51,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:05:51,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:05:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631206626] [2022-11-18 21:05:51,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:05:51,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:05:51,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:51,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:05:51,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:05:51,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-18 21:05:51,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:51,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:51,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-18 21:05:51,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:51,976 INFO L130 PetriNetUnfolder]: 1/97 cut-off events. [2022-11-18 21:05:51,976 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 21:05:51,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 97 events. 1/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 62. Up to 14 conditions per place. [2022-11-18 21:05:51,978 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 16 selfloop transitions, 4 changer transitions 1/97 dead transitions. [2022-11-18 21:05:51,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 237 flow [2022-11-18 21:05:51,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:05:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 21:05:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 417 transitions. [2022-11-18 21:05:52,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8872340425531915 [2022-11-18 21:05:52,003 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 417 transitions. [2022-11-18 21:05:52,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 417 transitions. [2022-11-18 21:05:52,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:52,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 417 transitions. [2022-11-18 21:05:52,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,039 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,042 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 189 flow. Second operand 5 states and 417 transitions. [2022-11-18 21:05:52,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 237 flow [2022-11-18 21:05:52,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:05:52,056 INFO L231 Difference]: Finished difference. Result has 99 places, 92 transitions, 212 flow [2022-11-18 21:05:52,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=99, PETRI_TRANSITIONS=92} [2022-11-18 21:05:52,063 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2022-11-18 21:05:52,064 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 212 flow [2022-11-18 21:05:52,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:52,065 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:52,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:05:52,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:52,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:52,068 INFO L85 PathProgramCache]: Analyzing trace with hash -954077976, now seen corresponding path program 1 times [2022-11-18 21:05:52,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:52,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530333847] [2022-11-18 21:05:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 21:05:52,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:52,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530333847] [2022-11-18 21:05:52,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530333847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:05:52,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:05:52,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:05:52,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333548395] [2022-11-18 21:05:52,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:05:52,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:05:52,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:52,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:05:52,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:05:52,221 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-18 21:05:52,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:52,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-18 21:05:52,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:52,314 INFO L130 PetriNetUnfolder]: 1/95 cut-off events. [2022-11-18 21:05:52,315 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 21:05:52,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 95 events. 1/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 1/89 useless extension candidates. Maximal degree in co-relation 93. Up to 7 conditions per place. [2022-11-18 21:05:52,316 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 8 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2022-11-18 21:05:52,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 92 transitions, 242 flow [2022-11-18 21:05:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:05:52,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 21:05:52,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 404 transitions. [2022-11-18 21:05:52,321 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595744680851064 [2022-11-18 21:05:52,321 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 404 transitions. [2022-11-18 21:05:52,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 404 transitions. [2022-11-18 21:05:52,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:52,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 404 transitions. [2022-11-18 21:05:52,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.8) internal successors, (404), 5 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,327 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,327 INFO L175 Difference]: Start difference. First operand has 99 places, 92 transitions, 212 flow. Second operand 5 states and 404 transitions. [2022-11-18 21:05:52,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 92 transitions, 242 flow [2022-11-18 21:05:52,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 92 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:05:52,333 INFO L231 Difference]: Finished difference. Result has 101 places, 92 transitions, 230 flow [2022-11-18 21:05:52,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=101, PETRI_TRANSITIONS=92} [2022-11-18 21:05:52,334 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 8 predicate places. [2022-11-18 21:05:52,335 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 92 transitions, 230 flow [2022-11-18 21:05:52,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:52,336 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:52,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:05:52,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:52,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:52,338 INFO L85 PathProgramCache]: Analyzing trace with hash 488353993, now seen corresponding path program 1 times [2022-11-18 21:05:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:52,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946763106] [2022-11-18 21:05:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:52,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:52,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946763106] [2022-11-18 21:05:52,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946763106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:05:52,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387053302] [2022-11-18 21:05:52,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:52,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:52,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:52,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:52,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:05:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:52,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:05:52,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:52,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:05:52,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387053302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:05:52,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:05:52,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 21:05:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017614418] [2022-11-18 21:05:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:05:52,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:05:52,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:05:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:05:52,723 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-18 21:05:52,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 92 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:52,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-18 21:05:52,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:52,823 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-11-18 21:05:52,823 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-18 21:05:52,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 94 events. 1/94 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 12. Up to 6 conditions per place. [2022-11-18 21:05:52,825 INFO L137 encePairwiseOnDemand]: 89/94 looper letters, 12 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2022-11-18 21:05:52,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 94 transitions, 268 flow [2022-11-18 21:05:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:05:52,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 21:05:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 565 transitions. [2022-11-18 21:05:52,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8586626139817629 [2022-11-18 21:05:52,829 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 565 transitions. [2022-11-18 21:05:52,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 565 transitions. [2022-11-18 21:05:52,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:52,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 565 transitions. [2022-11-18 21:05:52,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,835 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,836 INFO L175 Difference]: Start difference. First operand has 101 places, 92 transitions, 230 flow. Second operand 7 states and 565 transitions. [2022-11-18 21:05:52,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 94 transitions, 268 flow [2022-11-18 21:05:52,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 94 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 21:05:52,840 INFO L231 Difference]: Finished difference. Result has 103 places, 91 transitions, 226 flow [2022-11-18 21:05:52,841 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=226, PETRI_PLACES=103, PETRI_TRANSITIONS=91} [2022-11-18 21:05:52,842 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 10 predicate places. [2022-11-18 21:05:52,842 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 91 transitions, 226 flow [2022-11-18 21:05:52,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:52,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:52,843 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:52,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:05:53,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:53,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:53,052 INFO L85 PathProgramCache]: Analyzing trace with hash -317314014, now seen corresponding path program 1 times [2022-11-18 21:05:53,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:53,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197429641] [2022-11-18 21:05:53,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:53,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:53,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:53,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197429641] [2022-11-18 21:05:53,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197429641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:05:53,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498363979] [2022-11-18 21:05:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:53,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:53,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:53,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:53,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:05:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:53,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 21:05:53,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:53,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:05:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:53,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498363979] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:05:53,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:05:53,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 21:05:53,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640835456] [2022-11-18 21:05:53,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:05:53,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:05:53,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:53,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:05:53,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:05:53,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-18 21:05:53,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 226 flow. Second operand has 10 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:53,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:53,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-18 21:05:53,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:53,625 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-18 21:05:53,625 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-18 21:05:53,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 102 events. 1/102 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 2/97 useless extension candidates. Maximal degree in co-relation 81. Up to 7 conditions per place. [2022-11-18 21:05:53,626 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 17 selfloop transitions, 9 changer transitions 0/102 dead transitions. [2022-11-18 21:05:53,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 102 transitions, 316 flow [2022-11-18 21:05:53,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 21:05:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 21:05:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 730 transitions. [2022-11-18 21:05:53,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8628841607565012 [2022-11-18 21:05:53,630 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 730 transitions. [2022-11-18 21:05:53,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 730 transitions. [2022-11-18 21:05:53,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:53,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 730 transitions. [2022-11-18 21:05:53,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:53,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:53,637 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:53,637 INFO L175 Difference]: Start difference. First operand has 103 places, 91 transitions, 226 flow. Second operand 9 states and 730 transitions. [2022-11-18 21:05:53,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 102 transitions, 316 flow [2022-11-18 21:05:53,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 102 transitions, 303 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-11-18 21:05:53,642 INFO L231 Difference]: Finished difference. Result has 110 places, 95 transitions, 273 flow [2022-11-18 21:05:53,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=273, PETRI_PLACES=110, PETRI_TRANSITIONS=95} [2022-11-18 21:05:53,643 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 17 predicate places. [2022-11-18 21:05:53,644 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 95 transitions, 273 flow [2022-11-18 21:05:53,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:53,645 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:53,645 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:53,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:05:53,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:53,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:53,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1105021758, now seen corresponding path program 2 times [2022-11-18 21:05:53,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:53,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713925149] [2022-11-18 21:05:53,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:53,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:54,082 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:54,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:54,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713925149] [2022-11-18 21:05:54,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713925149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:05:54,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226205010] [2022-11-18 21:05:54,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:05:54,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:54,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:54,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:54,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 21:05:54,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:05:54,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:05:54,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 21:05:54,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:54,321 INFO L350 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 [2022-11-18 21:05:54,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:05:54,772 INFO L350 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 13 treesize of output 15 [2022-11-18 21:05:54,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-18 21:05:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 21:05:54,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:05:54,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226205010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:05:54,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:05:54,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-11-18 21:05:54,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130979802] [2022-11-18 21:05:54,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:05:54,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 21:05:54,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:54,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 21:05:54,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:05:54,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 94 [2022-11-18 21:05:54,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 95 transitions, 273 flow. Second operand has 9 states, 9 states have (on average 68.33333333333333) internal successors, (615), 9 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:54,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:54,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 94 [2022-11-18 21:05:54,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:55,116 INFO L130 PetriNetUnfolder]: 43/268 cut-off events. [2022-11-18 21:05:55,117 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-11-18 21:05:55,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 268 events. 43/268 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1080 event pairs, 27 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 351. Up to 77 conditions per place. [2022-11-18 21:05:55,121 INFO L137 encePairwiseOnDemand]: 83/94 looper letters, 25 selfloop transitions, 13 changer transitions 0/109 dead transitions. [2022-11-18 21:05:55,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 109 transitions, 377 flow [2022-11-18 21:05:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:05:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 21:05:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 575 transitions. [2022-11-18 21:05:55,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7646276595744681 [2022-11-18 21:05:55,125 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 575 transitions. [2022-11-18 21:05:55,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 575 transitions. [2022-11-18 21:05:55,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:55,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 575 transitions. [2022-11-18 21:05:55,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:55,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:55,131 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:55,131 INFO L175 Difference]: Start difference. First operand has 110 places, 95 transitions, 273 flow. Second operand 8 states and 575 transitions. [2022-11-18 21:05:55,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 109 transitions, 377 flow [2022-11-18 21:05:55,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 109 transitions, 363 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-18 21:05:55,139 INFO L231 Difference]: Finished difference. Result has 116 places, 103 transitions, 328 flow [2022-11-18 21:05:55,140 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=328, PETRI_PLACES=116, PETRI_TRANSITIONS=103} [2022-11-18 21:05:55,144 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 23 predicate places. [2022-11-18 21:05:55,144 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 103 transitions, 328 flow [2022-11-18 21:05:55,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.33333333333333) internal successors, (615), 9 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:55,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:55,146 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:55,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:05:55,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:55,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:55,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:55,352 INFO L85 PathProgramCache]: Analyzing trace with hash 104064099, now seen corresponding path program 1 times [2022-11-18 21:05:55,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:55,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198399901] [2022-11-18 21:05:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:55,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:55,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:55,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198399901] [2022-11-18 21:05:55,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198399901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:05:55,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403102558] [2022-11-18 21:05:55,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:55,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:55,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:55,589 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:55,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 21:05:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:55,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 21:05:55,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:55,807 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:55,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:05:55,963 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:55,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403102558] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:05:55,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:05:55,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 21:05:55,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96639888] [2022-11-18 21:05:55,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:05:55,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 21:05:55,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:55,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 21:05:55,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 21:05:55,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-18 21:05:55,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 103 transitions, 328 flow. Second operand has 18 states, 18 states have (on average 81.05555555555556) internal successors, (1459), 18 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:55,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:55,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-18 21:05:55,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:56,318 INFO L130 PetriNetUnfolder]: 8/202 cut-off events. [2022-11-18 21:05:56,318 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-18 21:05:56,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 202 events. 8/202 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 415 event pairs, 2 based on Foata normal form. 4/191 useless extension candidates. Maximal degree in co-relation 315. Up to 14 conditions per place. [2022-11-18 21:05:56,323 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 33 selfloop transitions, 21 changer transitions 0/138 dead transitions. [2022-11-18 21:05:56,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 138 transitions, 598 flow [2022-11-18 21:05:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 21:05:56,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 21:05:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1696 transitions. [2022-11-18 21:05:56,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8591691995947315 [2022-11-18 21:05:56,332 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1696 transitions. [2022-11-18 21:05:56,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1696 transitions. [2022-11-18 21:05:56,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:56,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1696 transitions. [2022-11-18 21:05:56,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 80.76190476190476) internal successors, (1696), 21 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:56,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:56,344 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:56,344 INFO L175 Difference]: Start difference. First operand has 116 places, 103 transitions, 328 flow. Second operand 21 states and 1696 transitions. [2022-11-18 21:05:56,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 138 transitions, 598 flow [2022-11-18 21:05:56,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 138 transitions, 590 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 21:05:56,350 INFO L231 Difference]: Finished difference. Result has 138 places, 116 transitions, 484 flow [2022-11-18 21:05:56,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=484, PETRI_PLACES=138, PETRI_TRANSITIONS=116} [2022-11-18 21:05:56,352 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 45 predicate places. [2022-11-18 21:05:56,352 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 116 transitions, 484 flow [2022-11-18 21:05:56,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 81.05555555555556) internal successors, (1459), 18 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:56,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:56,353 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:56,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 21:05:56,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:56,567 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:56,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:56,568 INFO L85 PathProgramCache]: Analyzing trace with hash -163790045, now seen corresponding path program 2 times [2022-11-18 21:05:56,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:56,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380672957] [2022-11-18 21:05:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:56,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:57,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:57,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380672957] [2022-11-18 21:05:57,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380672957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:05:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025878545] [2022-11-18 21:05:57,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:05:57,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:57,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:57,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:57,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 21:05:57,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:05:57,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:05:57,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 21:05:57,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:57,222 INFO L350 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 [2022-11-18 21:05:57,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 21:05:57,791 INFO L350 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 13 treesize of output 15 [2022-11-18 21:05:57,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-18 21:05:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-18 21:05:57,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:05:57,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025878545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:05:57,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:05:57,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2022-11-18 21:05:57,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387381590] [2022-11-18 21:05:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:05:57,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 21:05:57,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:57,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 21:05:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2022-11-18 21:05:57,922 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 94 [2022-11-18 21:05:57,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 116 transitions, 484 flow. Second operand has 9 states, 9 states have (on average 68.44444444444444) internal successors, (616), 9 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:57,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:57,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 94 [2022-11-18 21:05:57,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:58,088 INFO L130 PetriNetUnfolder]: 42/325 cut-off events. [2022-11-18 21:05:58,088 INFO L131 PetriNetUnfolder]: For 215/240 co-relation queries the response was YES. [2022-11-18 21:05:58,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 325 events. 42/325 cut-off events. For 215/240 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1286 event pairs, 23 based on Foata normal form. 5/281 useless extension candidates. Maximal degree in co-relation 468. Up to 96 conditions per place. [2022-11-18 21:05:58,091 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 29 selfloop transitions, 10 changer transitions 1/123 dead transitions. [2022-11-18 21:05:58,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 123 transitions, 590 flow [2022-11-18 21:05:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:05:58,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 21:05:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 569 transitions. [2022-11-18 21:05:58,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7566489361702128 [2022-11-18 21:05:58,095 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 569 transitions. [2022-11-18 21:05:58,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 569 transitions. [2022-11-18 21:05:58,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:58,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 569 transitions. [2022-11-18 21:05:58,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:58,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:58,100 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:58,100 INFO L175 Difference]: Start difference. First operand has 138 places, 116 transitions, 484 flow. Second operand 8 states and 569 transitions. [2022-11-18 21:05:58,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 123 transitions, 590 flow [2022-11-18 21:05:58,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 123 transitions, 546 flow, removed 15 selfloop flow, removed 7 redundant places. [2022-11-18 21:05:58,107 INFO L231 Difference]: Finished difference. Result has 141 places, 120 transitions, 499 flow [2022-11-18 21:05:58,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=499, PETRI_PLACES=141, PETRI_TRANSITIONS=120} [2022-11-18 21:05:58,108 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 48 predicate places. [2022-11-18 21:05:58,109 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 120 transitions, 499 flow [2022-11-18 21:05:58,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.44444444444444) internal successors, (616), 9 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:58,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:58,110 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:58,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 21:05:58,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:58,317 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:05:58,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:58,317 INFO L85 PathProgramCache]: Analyzing trace with hash -333512459, now seen corresponding path program 1 times [2022-11-18 21:05:58,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:58,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160418798] [2022-11-18 21:05:58,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:58,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:58,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:58,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160418798] [2022-11-18 21:05:58,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160418798] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:05:58,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36380852] [2022-11-18 21:05:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:58,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:58,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:58,783 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:58,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 21:05:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:58,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 21:05:58,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:59,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:05:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:59,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36380852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:05:59,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:05:59,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 21:05:59,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520795619] [2022-11-18 21:05:59,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:05:59,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 21:05:59,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:59,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 21:05:59,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 21:05:59,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-18 21:05:59,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 120 transitions, 499 flow. Second operand has 23 states, 23 states have (on average 81.30434782608695) internal successors, (1870), 23 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:59,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:05:59,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-18 21:05:59,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:05:59,817 INFO L130 PetriNetUnfolder]: 10/235 cut-off events. [2022-11-18 21:05:59,817 INFO L131 PetriNetUnfolder]: For 206/209 co-relation queries the response was YES. [2022-11-18 21:05:59,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 235 events. 10/235 cut-off events. For 206/209 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 478 event pairs, 0 based on Foata normal form. 3/219 useless extension candidates. Maximal degree in co-relation 433. Up to 17 conditions per place. [2022-11-18 21:05:59,819 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 45 selfloop transitions, 30 changer transitions 0/163 dead transitions. [2022-11-18 21:05:59,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 163 transitions, 847 flow [2022-11-18 21:05:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 21:05:59,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 21:05:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2418 transitions. [2022-11-18 21:05:59,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8574468085106383 [2022-11-18 21:05:59,827 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2418 transitions. [2022-11-18 21:05:59,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2418 transitions. [2022-11-18 21:05:59,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:05:59,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2418 transitions. [2022-11-18 21:05:59,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 80.6) internal successors, (2418), 30 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:59,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:59,841 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 94.0) internal successors, (2914), 31 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:59,842 INFO L175 Difference]: Start difference. First operand has 141 places, 120 transitions, 499 flow. Second operand 30 states and 2418 transitions. [2022-11-18 21:05:59,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 163 transitions, 847 flow [2022-11-18 21:05:59,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 163 transitions, 837 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-18 21:05:59,848 INFO L231 Difference]: Finished difference. Result has 170 places, 130 transitions, 655 flow [2022-11-18 21:05:59,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=655, PETRI_PLACES=170, PETRI_TRANSITIONS=130} [2022-11-18 21:05:59,849 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 77 predicate places. [2022-11-18 21:05:59,849 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 130 transitions, 655 flow [2022-11-18 21:05:59,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 81.30434782608695) internal successors, (1870), 23 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:05:59,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:05:59,851 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:05:59,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 21:06:00,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 21:06:00,057 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:00,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:00,057 INFO L85 PathProgramCache]: Analyzing trace with hash -274946296, now seen corresponding path program 2 times [2022-11-18 21:06:00,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:00,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795350140] [2022-11-18 21:06:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:00,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:00,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:00,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795350140] [2022-11-18 21:06:00,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795350140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:00,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:00,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:06:00,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299808602] [2022-11-18 21:06:00,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:00,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:06:00,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:00,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:06:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:06:00,278 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 94 [2022-11-18 21:06:00,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 130 transitions, 655 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:00,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 94 [2022-11-18 21:06:00,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:00,374 INFO L130 PetriNetUnfolder]: 10/231 cut-off events. [2022-11-18 21:06:00,374 INFO L131 PetriNetUnfolder]: For 249/250 co-relation queries the response was YES. [2022-11-18 21:06:00,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 231 events. 10/231 cut-off events. For 249/250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 455 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 415. Up to 16 conditions per place. [2022-11-18 21:06:00,376 INFO L137 encePairwiseOnDemand]: 87/94 looper letters, 10 selfloop transitions, 6 changer transitions 0/129 dead transitions. [2022-11-18 21:06:00,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 129 transitions, 685 flow [2022-11-18 21:06:00,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:06:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 21:06:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 546 transitions. [2022-11-18 21:06:00,379 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8297872340425532 [2022-11-18 21:06:00,379 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 546 transitions. [2022-11-18 21:06:00,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 546 transitions. [2022-11-18 21:06:00,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:00,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 546 transitions. [2022-11-18 21:06:00,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,384 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,384 INFO L175 Difference]: Start difference. First operand has 170 places, 130 transitions, 655 flow. Second operand 7 states and 546 transitions. [2022-11-18 21:06:00,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 129 transitions, 685 flow [2022-11-18 21:06:00,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 129 transitions, 639 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 21:06:00,392 INFO L231 Difference]: Finished difference. Result has 157 places, 129 transitions, 619 flow [2022-11-18 21:06:00,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=619, PETRI_PLACES=157, PETRI_TRANSITIONS=129} [2022-11-18 21:06:00,394 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 64 predicate places. [2022-11-18 21:06:00,394 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 129 transitions, 619 flow [2022-11-18 21:06:00,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:00,395 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:00,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:06:00,395 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:00,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:00,396 INFO L85 PathProgramCache]: Analyzing trace with hash 66599670, now seen corresponding path program 1 times [2022-11-18 21:06:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:00,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728366386] [2022-11-18 21:06:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:00,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:00,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:00,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728366386] [2022-11-18 21:06:00,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728366386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:00,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:00,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:06:00,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129320239] [2022-11-18 21:06:00,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:00,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:06:00,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:00,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:06:00,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:06:00,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 94 [2022-11-18 21:06:00,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 129 transitions, 619 flow. Second operand has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:00,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 94 [2022-11-18 21:06:00,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:00,607 INFO L130 PetriNetUnfolder]: 10/227 cut-off events. [2022-11-18 21:06:00,608 INFO L131 PetriNetUnfolder]: For 243/244 co-relation queries the response was YES. [2022-11-18 21:06:00,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 227 events. 10/227 cut-off events. For 243/244 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 422 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 396. Up to 16 conditions per place. [2022-11-18 21:06:00,609 INFO L137 encePairwiseOnDemand]: 88/94 looper letters, 9 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2022-11-18 21:06:00,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 128 transitions, 645 flow [2022-11-18 21:06:00,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:06:00,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:06:00,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 480 transitions. [2022-11-18 21:06:00,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.851063829787234 [2022-11-18 21:06:00,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 480 transitions. [2022-11-18 21:06:00,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 480 transitions. [2022-11-18 21:06:00,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:00,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 480 transitions. [2022-11-18 21:06:00,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,618 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,619 INFO L175 Difference]: Start difference. First operand has 157 places, 129 transitions, 619 flow. Second operand 6 states and 480 transitions. [2022-11-18 21:06:00,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 128 transitions, 645 flow [2022-11-18 21:06:00,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 128 transitions, 633 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 21:06:00,630 INFO L231 Difference]: Finished difference. Result has 155 places, 128 transitions, 615 flow [2022-11-18 21:06:00,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=615, PETRI_PLACES=155, PETRI_TRANSITIONS=128} [2022-11-18 21:06:00,632 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 62 predicate places. [2022-11-18 21:06:00,633 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 128 transitions, 615 flow [2022-11-18 21:06:00,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:00,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:00,633 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:00,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:06:00,634 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1769332419, now seen corresponding path program 1 times [2022-11-18 21:06:00,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:00,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054987796] [2022-11-18 21:06:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:00,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:01,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:01,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054987796] [2022-11-18 21:06:01,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054987796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:01,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:01,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:06:01,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474552345] [2022-11-18 21:06:01,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:01,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:06:01,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:06:01,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:06:01,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2022-11-18 21:06:01,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 128 transitions, 615 flow. Second operand has 10 states, 10 states have (on average 66.6) internal successors, (666), 10 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:01,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:01,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2022-11-18 21:06:01,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:01,494 INFO L130 PetriNetUnfolder]: 38/326 cut-off events. [2022-11-18 21:06:01,494 INFO L131 PetriNetUnfolder]: For 326/363 co-relation queries the response was YES. [2022-11-18 21:06:01,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 326 events. 38/326 cut-off events. For 326/363 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1128 event pairs, 4 based on Foata normal form. 18/322 useless extension candidates. Maximal degree in co-relation 488. Up to 41 conditions per place. [2022-11-18 21:06:01,497 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 34 selfloop transitions, 13 changer transitions 15/151 dead transitions. [2022-11-18 21:06:01,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 151 transitions, 833 flow [2022-11-18 21:06:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:06:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 21:06:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 772 transitions. [2022-11-18 21:06:01,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.746615087040619 [2022-11-18 21:06:01,500 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 772 transitions. [2022-11-18 21:06:01,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 772 transitions. [2022-11-18 21:06:01,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:01,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 772 transitions. [2022-11-18 21:06:01,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.18181818181819) internal successors, (772), 11 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:01,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:01,506 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:01,506 INFO L175 Difference]: Start difference. First operand has 155 places, 128 transitions, 615 flow. Second operand 11 states and 772 transitions. [2022-11-18 21:06:01,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 151 transitions, 833 flow [2022-11-18 21:06:01,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 151 transitions, 823 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 21:06:01,514 INFO L231 Difference]: Finished difference. Result has 163 places, 126 transitions, 636 flow [2022-11-18 21:06:01,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=636, PETRI_PLACES=163, PETRI_TRANSITIONS=126} [2022-11-18 21:06:01,515 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 70 predicate places. [2022-11-18 21:06:01,516 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 126 transitions, 636 flow [2022-11-18 21:06:01,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.6) internal successors, (666), 10 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:01,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:01,517 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:01,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:06:01,517 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:01,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:01,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1650842700, now seen corresponding path program 1 times [2022-11-18 21:06:01,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:01,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694815378] [2022-11-18 21:06:01,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:01,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:02,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:02,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694815378] [2022-11-18 21:06:02,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694815378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:02,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:02,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:06:02,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014815535] [2022-11-18 21:06:02,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:02,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:06:02,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:02,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:06:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:06:02,044 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2022-11-18 21:06:02,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 126 transitions, 636 flow. Second operand has 10 states, 10 states have (on average 66.3) internal successors, (663), 10 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:02,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:02,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2022-11-18 21:06:02,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:02,382 INFO L130 PetriNetUnfolder]: 62/377 cut-off events. [2022-11-18 21:06:02,382 INFO L131 PetriNetUnfolder]: For 370/386 co-relation queries the response was YES. [2022-11-18 21:06:02,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 377 events. 62/377 cut-off events. For 370/386 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1354 event pairs, 25 based on Foata normal form. 3/371 useless extension candidates. Maximal degree in co-relation 837. Up to 73 conditions per place. [2022-11-18 21:06:02,385 INFO L137 encePairwiseOnDemand]: 81/94 looper letters, 32 selfloop transitions, 16 changer transitions 12/154 dead transitions. [2022-11-18 21:06:02,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 154 transitions, 850 flow [2022-11-18 21:06:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:06:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:06:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 840 transitions. [2022-11-18 21:06:02,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7446808510638298 [2022-11-18 21:06:02,389 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 840 transitions. [2022-11-18 21:06:02,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 840 transitions. [2022-11-18 21:06:02,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:02,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 840 transitions. [2022-11-18 21:06:02,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 70.0) internal successors, (840), 12 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:02,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:02,397 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:02,397 INFO L175 Difference]: Start difference. First operand has 163 places, 126 transitions, 636 flow. Second operand 12 states and 840 transitions. [2022-11-18 21:06:02,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 154 transitions, 850 flow [2022-11-18 21:06:02,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 154 transitions, 823 flow, removed 3 selfloop flow, removed 8 redundant places. [2022-11-18 21:06:02,406 INFO L231 Difference]: Finished difference. Result has 171 places, 130 transitions, 699 flow [2022-11-18 21:06:02,407 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=699, PETRI_PLACES=171, PETRI_TRANSITIONS=130} [2022-11-18 21:06:02,410 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 78 predicate places. [2022-11-18 21:06:02,410 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 130 transitions, 699 flow [2022-11-18 21:06:02,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.3) internal successors, (663), 10 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:02,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:02,411 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:02,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:06:02,411 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:02,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:02,412 INFO L85 PathProgramCache]: Analyzing trace with hash -919998386, now seen corresponding path program 1 times [2022-11-18 21:06:02,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:02,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462237601] [2022-11-18 21:06:02,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:02,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:03,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:03,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462237601] [2022-11-18 21:06:03,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462237601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:03,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:03,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:06:03,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747825843] [2022-11-18 21:06:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:03,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:06:03,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:03,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:06:03,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:06:03,173 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2022-11-18 21:06:03,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 130 transitions, 699 flow. Second operand has 13 states, 13 states have (on average 59.46153846153846) internal successors, (773), 13 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:03,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:03,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2022-11-18 21:06:03,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:03,936 INFO L130 PetriNetUnfolder]: 100/435 cut-off events. [2022-11-18 21:06:03,937 INFO L131 PetriNetUnfolder]: For 630/674 co-relation queries the response was YES. [2022-11-18 21:06:03,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 435 events. 100/435 cut-off events. For 630/674 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1626 event pairs, 0 based on Foata normal form. 23/455 useless extension candidates. Maximal degree in co-relation 1020. Up to 44 conditions per place. [2022-11-18 21:06:03,941 INFO L137 encePairwiseOnDemand]: 80/94 looper letters, 60 selfloop transitions, 23 changer transitions 25/190 dead transitions. [2022-11-18 21:06:03,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 190 transitions, 1143 flow [2022-11-18 21:06:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 21:06:03,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-18 21:06:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1435 transitions. [2022-11-18 21:06:03,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6637372802960222 [2022-11-18 21:06:03,945 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1435 transitions. [2022-11-18 21:06:03,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1435 transitions. [2022-11-18 21:06:03,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:03,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1435 transitions. [2022-11-18 21:06:03,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 62.391304347826086) internal successors, (1435), 23 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:03,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 94.0) internal successors, (2256), 24 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:03,954 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 94.0) internal successors, (2256), 24 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:03,955 INFO L175 Difference]: Start difference. First operand has 171 places, 130 transitions, 699 flow. Second operand 23 states and 1435 transitions. [2022-11-18 21:06:03,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 190 transitions, 1143 flow [2022-11-18 21:06:03,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 190 transitions, 1123 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-18 21:06:03,965 INFO L231 Difference]: Finished difference. Result has 183 places, 128 transitions, 709 flow [2022-11-18 21:06:03,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=709, PETRI_PLACES=183, PETRI_TRANSITIONS=128} [2022-11-18 21:06:03,966 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 90 predicate places. [2022-11-18 21:06:03,966 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 128 transitions, 709 flow [2022-11-18 21:06:03,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 59.46153846153846) internal successors, (773), 13 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:03,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:03,967 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:03,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:06:03,968 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:03,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:03,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1309997886, now seen corresponding path program 1 times [2022-11-18 21:06:03,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:03,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019730053] [2022-11-18 21:06:03,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:03,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:04,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:04,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019730053] [2022-11-18 21:06:04,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019730053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:04,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:04,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:06:04,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748661938] [2022-11-18 21:06:04,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:04,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:06:04,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:04,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:06:04,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:06:04,869 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 94 [2022-11-18 21:06:04,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 128 transitions, 709 flow. Second operand has 13 states, 13 states have (on average 57.61538461538461) internal successors, (749), 13 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:04,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:04,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 94 [2022-11-18 21:06:04,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:05,574 INFO L130 PetriNetUnfolder]: 73/366 cut-off events. [2022-11-18 21:06:05,574 INFO L131 PetriNetUnfolder]: For 575/618 co-relation queries the response was YES. [2022-11-18 21:06:05,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 366 events. 73/366 cut-off events. For 575/618 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1191 event pairs, 0 based on Foata normal form. 24/385 useless extension candidates. Maximal degree in co-relation 738. Up to 61 conditions per place. [2022-11-18 21:06:05,578 INFO L137 encePairwiseOnDemand]: 79/94 looper letters, 53 selfloop transitions, 27 changer transitions 5/165 dead transitions. [2022-11-18 21:06:05,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 165 transitions, 1014 flow [2022-11-18 21:06:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 21:06:05,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 21:06:05,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1260 transitions. [2022-11-18 21:06:05,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2022-11-18 21:06:05,581 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1260 transitions. [2022-11-18 21:06:05,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1260 transitions. [2022-11-18 21:06:05,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:05,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1260 transitions. [2022-11-18 21:06:05,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 60.0) internal successors, (1260), 21 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:05,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:05,589 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 94.0) internal successors, (2068), 22 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:05,589 INFO L175 Difference]: Start difference. First operand has 183 places, 128 transitions, 709 flow. Second operand 21 states and 1260 transitions. [2022-11-18 21:06:05,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 165 transitions, 1014 flow [2022-11-18 21:06:05,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 165 transitions, 881 flow, removed 22 selfloop flow, removed 22 redundant places. [2022-11-18 21:06:05,598 INFO L231 Difference]: Finished difference. Result has 176 places, 131 transitions, 671 flow [2022-11-18 21:06:05,598 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=671, PETRI_PLACES=176, PETRI_TRANSITIONS=131} [2022-11-18 21:06:05,598 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 83 predicate places. [2022-11-18 21:06:05,599 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 131 transitions, 671 flow [2022-11-18 21:06:05,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 57.61538461538461) internal successors, (749), 13 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:05,599 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:05,600 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:05,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 21:06:05,600 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:05,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:05,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1544821368, now seen corresponding path program 1 times [2022-11-18 21:06:05,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:05,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848455072] [2022-11-18 21:06:05,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:05,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:06,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:06,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848455072] [2022-11-18 21:06:06,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848455072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:06,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:06,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:06:06,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358951086] [2022-11-18 21:06:06,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:06,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:06:06,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:06,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:06:06,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:06:06,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2022-11-18 21:06:06,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 131 transitions, 671 flow. Second operand has 13 states, 13 states have (on average 59.53846153846154) internal successors, (774), 13 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:06,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:06,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2022-11-18 21:06:06,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:06,953 INFO L130 PetriNetUnfolder]: 68/357 cut-off events. [2022-11-18 21:06:06,953 INFO L131 PetriNetUnfolder]: For 344/377 co-relation queries the response was YES. [2022-11-18 21:06:06,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 357 events. 68/357 cut-off events. For 344/377 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1188 event pairs, 5 based on Foata normal form. 22/376 useless extension candidates. Maximal degree in co-relation 685. Up to 50 conditions per place. [2022-11-18 21:06:06,955 INFO L137 encePairwiseOnDemand]: 80/94 looper letters, 27 selfloop transitions, 12 changer transitions 50/167 dead transitions. [2022-11-18 21:06:06,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 167 transitions, 952 flow [2022-11-18 21:06:06,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 21:06:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 21:06:06,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1125 transitions. [2022-11-18 21:06:06,962 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6648936170212766 [2022-11-18 21:06:06,963 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1125 transitions. [2022-11-18 21:06:06,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1125 transitions. [2022-11-18 21:06:06,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:06,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1125 transitions. [2022-11-18 21:06:06,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 62.5) internal successors, (1125), 18 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:06,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 94.0) internal successors, (1786), 19 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:06,970 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 94.0) internal successors, (1786), 19 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:06,970 INFO L175 Difference]: Start difference. First operand has 176 places, 131 transitions, 671 flow. Second operand 18 states and 1125 transitions. [2022-11-18 21:06:06,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 167 transitions, 952 flow [2022-11-18 21:06:06,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 167 transitions, 870 flow, removed 3 selfloop flow, removed 18 redundant places. [2022-11-18 21:06:06,979 INFO L231 Difference]: Finished difference. Result has 174 places, 105 transitions, 524 flow [2022-11-18 21:06:06,980 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=524, PETRI_PLACES=174, PETRI_TRANSITIONS=105} [2022-11-18 21:06:06,980 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 81 predicate places. [2022-11-18 21:06:06,980 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 105 transitions, 524 flow [2022-11-18 21:06:06,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 59.53846153846154) internal successors, (774), 13 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:06,981 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:06,981 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:06,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 21:06:06,982 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 21:06:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:06,982 INFO L85 PathProgramCache]: Analyzing trace with hash -326754893, now seen corresponding path program 1 times [2022-11-18 21:06:06,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:06,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028468428] [2022-11-18 21:06:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:06,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 21:06:07,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:07,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028468428] [2022-11-18 21:06:07,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028468428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:07,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:07,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:06:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380479035] [2022-11-18 21:06:07,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:07,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:06:07,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:07,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:06:07,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:06:07,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 94 [2022-11-18 21:06:07,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 105 transitions, 524 flow. Second operand has 13 states, 13 states have (on average 57.69230769230769) internal successors, (750), 13 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:07,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:07,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 94 [2022-11-18 21:06:07,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:08,237 INFO L130 PetriNetUnfolder]: 20/179 cut-off events. [2022-11-18 21:06:08,237 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-11-18 21:06:08,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 179 events. 20/179 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 event pairs, 0 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 454. Up to 14 conditions per place. [2022-11-18 21:06:08,238 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 0 selfloop transitions, 0 changer transitions 114/114 dead transitions. [2022-11-18 21:06:08,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 114 transitions, 620 flow [2022-11-18 21:06:08,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 21:06:08,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 21:06:08,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 880 transitions. [2022-11-18 21:06:08,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.624113475177305 [2022-11-18 21:06:08,241 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 880 transitions. [2022-11-18 21:06:08,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 880 transitions. [2022-11-18 21:06:08,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:08,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 880 transitions. [2022-11-18 21:06:08,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.666666666666664) internal successors, (880), 15 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:08,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:08,247 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:08,247 INFO L175 Difference]: Start difference. First operand has 174 places, 105 transitions, 524 flow. Second operand 15 states and 880 transitions. [2022-11-18 21:06:08,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 114 transitions, 620 flow [2022-11-18 21:06:08,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 114 transitions, 581 flow, removed 2 selfloop flow, removed 16 redundant places. [2022-11-18 21:06:08,252 INFO L231 Difference]: Finished difference. Result has 143 places, 0 transitions, 0 flow [2022-11-18 21:06:08,252 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=143, PETRI_TRANSITIONS=0} [2022-11-18 21:06:08,253 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, 50 predicate places. [2022-11-18 21:06:08,253 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 0 transitions, 0 flow [2022-11-18 21:06:08,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 57.69230769230769) internal successors, (750), 13 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:08,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-11-18 21:06:08,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-18 21:06:08,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-18 21:06:08,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-18 21:06:08,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-11-18 21:06:08,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-18 21:06:08,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-18 21:06:08,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-18 21:06:08,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-18 21:06:08,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-18 21:06:08,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-18 21:06:08,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-18 21:06:08,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-18 21:06:08,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:06:08,259 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:08,265 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:06:08,265 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:06:08,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:06:08 BasicIcfg [2022-11-18 21:06:08,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:06:08,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:06:08,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:06:08,272 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:06:08,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:05:50" (3/4) ... [2022-11-18 21:06:08,275 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:06:08,282 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 21:06:08,289 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-18 21:06:08,290 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 21:06:08,290 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:06:08,335 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:06:08,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:06:08,336 INFO L158 Benchmark]: Toolchain (without parser) took 19304.64ms. Allocated memory was 130.0MB in the beginning and 232.8MB in the end (delta: 102.8MB). Free memory was 91.6MB in the beginning and 185.9MB in the end (delta: -94.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-11-18 21:06:08,337 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 130.0MB. Free memory was 100.6MB in the beginning and 100.6MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:06:08,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 986.85ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 85.4MB in the end (delta: 6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 21:06:08,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.83ms. Allocated memory is still 130.0MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:06:08,338 INFO L158 Benchmark]: Boogie Preprocessor took 36.04ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:06:08,338 INFO L158 Benchmark]: RCFGBuilder took 664.36ms. Allocated memory is still 130.0MB. Free memory was 81.2MB in the beginning and 67.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 21:06:08,338 INFO L158 Benchmark]: TraceAbstraction took 17488.09ms. Allocated memory was 130.0MB in the beginning and 232.8MB in the end (delta: 102.8MB). Free memory was 66.5MB in the beginning and 188.0MB in the end (delta: -121.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:06:08,339 INFO L158 Benchmark]: Witness Printer took 63.84ms. Allocated memory is still 232.8MB. Free memory was 188.0MB in the beginning and 185.9MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:06:08,343 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 130.0MB. Free memory was 100.6MB in the beginning and 100.6MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 986.85ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 85.4MB in the end (delta: 6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.83ms. Allocated memory is still 130.0MB. Free memory was 85.4MB in the beginning and 83.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.04ms. Allocated memory is still 130.0MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 664.36ms. Allocated memory is still 130.0MB. Free memory was 81.2MB in the beginning and 67.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17488.09ms. Allocated memory was 130.0MB in the beginning and 232.8MB in the end (delta: 102.8MB). Free memory was 66.5MB in the beginning and 188.0MB in the end (delta: -121.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.84ms. Allocated memory is still 232.8MB. Free memory was 188.0MB in the beginning and 185.9MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: 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 - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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, 126 locations, 13 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: 17.3s, OverallIterations: 16, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1467 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1467 mSDsluCounter, 763 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 62 IncrementalHoareTripleChecker+Unchecked, 590 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1406 IncrementalHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 173 mSDtfsCounter, 1406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 807 GetRequests, 509 SyntacticMatches, 11 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=13, InterpolantAutomatonStates: 206, 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, 0.5s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 1710 NumberOfCodeBlocks, 1640 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1873 ConstructedInterpolants, 5 QuantifiedInterpolants, 11055 SizeOfPredicates, 39 NumberOfNonLiveVariables, 618 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 25 InterpolantComputations, 13 PerfectInterpolantSequences, 2787/3507 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 21:06:08,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b0f900-6543-45b3-8321-28b6e9342a97/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE