./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/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_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/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 64bit --witnessprinter.graph.data.programhash b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 --- 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 18:35:55,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:35:55,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:35:55,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:35:55,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:35:55,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:35:55,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:35:55,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:35:55,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:35:55,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:35:55,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:35:55,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:35:55,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:35:55,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:35:55,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:35:55,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:35:55,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:35:55,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:35:55,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:35:55,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:35:55,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:35:55,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:35:55,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:35:55,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:35:55,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:35:55,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:35:55,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:35:55,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:35:55,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:35:55,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:35:55,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:35:55,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:35:55,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:35:55,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:35:55,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:35:55,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:35:55,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:35:55,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:35:55,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:35:55,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:35:55,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:35:55,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 18:35:55,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:35:55,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:35:55,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:35:55,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:35:55,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:35:55,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:35:55,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:35:55,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:35:55,464 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:35:55,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:35:55,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:35:55,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:35:55,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:35:55,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:35:55,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:35:55,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:35:55,467 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:35:55,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:35:55,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:35:55,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:35:55,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:35:55,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:35:55,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:35:55,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:35:55,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:35:55,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:35:55,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:35:55,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:35:55,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:35:55,471 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:35:55,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:35:55,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:35:55,472 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_ef5a092e-7a02-449c-ae0d-bc973125ec62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2022-11-18 18:35:55,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:35:55,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:35:55,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:35:55,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:35:55,753 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:35:55,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2022-11-18 18:35:55,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/data/eda411e56/78b0f7515981404ea3b4ff247315ed5e/FLAGbbb8d3696 [2022-11-18 18:35:56,359 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:35:56,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2022-11-18 18:35:56,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/data/eda411e56/78b0f7515981404ea3b4ff247315ed5e/FLAGbbb8d3696 [2022-11-18 18:35:56,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/data/eda411e56/78b0f7515981404ea3b4ff247315ed5e [2022-11-18 18:35:56,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:35:56,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:35:56,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:35:56,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:35:56,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:35:56,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:35:56" (1/1) ... [2022-11-18 18:35:56,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64276920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:56, skipping insertion in model container [2022-11-18 18:35:56,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:35:56" (1/1) ... [2022-11-18 18:35:56,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:35:56,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:35:57,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:35:57,058 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:35:57,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:35:57,084 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:35:57,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57 WrapperNode [2022-11-18 18:35:57,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:35:57,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:35:57,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:35:57,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:35:57,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,118 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-18 18:35:57,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:35:57,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:35:57,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:35:57,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:35:57,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:35:57,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:35:57,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:35:57,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:35:57,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (1/1) ... [2022-11-18 18:35:57,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:35:57,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:35:57,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:35:57,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:35:57,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:35:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:35:57,291 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:35:57,293 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:35:57,440 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:35:57,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:35:57,447 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:35:57,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:35:57 BoogieIcfgContainer [2022-11-18 18:35:57,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:35:57,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:35:57,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:35:57,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:35:57,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:35:56" (1/3) ... [2022-11-18 18:35:57,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482498fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:35:57, skipping insertion in model container [2022-11-18 18:35:57,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:35:57" (2/3) ... [2022-11-18 18:35:57,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482498fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:35:57, skipping insertion in model container [2022-11-18 18:35:57,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:35:57" (3/3) ... [2022-11-18 18:35:57,468 INFO L112 eAbstractionObserver]: Analyzing ICFG b.09-no-inv_assume.c [2022-11-18 18:35:57,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:35:57,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 18:35:57,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:35:57,596 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;@34e281c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:35:57,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 18:35:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 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 18:35:57,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 18:35:57,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:57,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:35:57,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:57,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:57,627 INFO L85 PathProgramCache]: Analyzing trace with hash 889513684, now seen corresponding path program 1 times [2022-11-18 18:35:57,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:57,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624608789] [2022-11-18 18:35:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:57,877 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 18:35:57,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:57,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624608789] [2022-11-18 18:35:57,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624608789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:57,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:57,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:57,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017682957] [2022-11-18 18:35:57,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:57,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:57,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:57,929 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 18:35:57,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:57,991 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-11-18 18:35:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:57,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-18 18:35:57,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:58,001 INFO L225 Difference]: With dead ends: 34 [2022-11-18 18:35:58,001 INFO L226 Difference]: Without dead ends: 21 [2022-11-18 18:35:58,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,024 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:58,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 28 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-18 18:35:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2022-11-18 18:35:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 17 states have internal predecessors, (22), 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 18:35:58,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-11-18 18:35:58,093 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 6 [2022-11-18 18:35:58,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:58,094 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-11-18 18:35:58,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 18:35:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-18 18:35:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 18:35:58,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:58,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:35:58,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:35:58,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:58,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash 889513741, now seen corresponding path program 1 times [2022-11-18 18:35:58,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:58,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225070876] [2022-11-18 18:35:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:58,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:58,164 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 18:35:58,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:58,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225070876] [2022-11-18 18:35:58,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225070876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:58,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:58,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:58,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121103306] [2022-11-18 18:35:58,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:58,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:58,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:58,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:58,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,168 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 18:35:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:58,202 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-11-18 18:35:58,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:58,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-18 18:35:58,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:58,205 INFO L225 Difference]: With dead ends: 18 [2022-11-18 18:35:58,205 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 18:35:58,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,210 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:58,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 18:35:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-18 18:35:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 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 18:35:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-18 18:35:58,216 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 6 [2022-11-18 18:35:58,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:58,216 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-18 18:35:58,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 18:35:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-18 18:35:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:35:58,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:58,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:58,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:35:58,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:58,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:58,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120486, now seen corresponding path program 1 times [2022-11-18 18:35:58,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:58,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188237533] [2022-11-18 18:35:58,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:58,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:58,296 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 18:35:58,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:58,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188237533] [2022-11-18 18:35:58,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188237533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:58,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:58,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:58,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343436515] [2022-11-18 18:35:58,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:58,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:58,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,300 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:35:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:58,318 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-11-18 18:35:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:58,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-11-18 18:35:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:58,320 INFO L225 Difference]: With dead ends: 17 [2022-11-18 18:35:58,320 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 18:35:58,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,323 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:58,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 18:35:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 18:35:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 18:35:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-18 18:35:58,328 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 7 [2022-11-18 18:35:58,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:58,329 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-18 18:35:58,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:35:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-18 18:35:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:35:58,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:58,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:58,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:35:58,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:58,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122248, now seen corresponding path program 1 times [2022-11-18 18:35:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:58,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160665587] [2022-11-18 18:35:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:58,360 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 18:35:58,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:58,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160665587] [2022-11-18 18:35:58,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160665587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:58,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:58,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:35:58,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510018257] [2022-11-18 18:35:58,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:58,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:58,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:58,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:58,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,363 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:35:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:58,380 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-11-18 18:35:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:58,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-11-18 18:35:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:58,381 INFO L225 Difference]: With dead ends: 17 [2022-11-18 18:35:58,381 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 18:35:58,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,383 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:58,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 18:35:58,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 18:35:58,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 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 18:35:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-18 18:35:58,400 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2022-11-18 18:35:58,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:58,401 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-18 18:35:58,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:35:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-18 18:35:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 18:35:58,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:58,402 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:58,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:35:58,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:58,403 INFO L85 PathProgramCache]: Analyzing trace with hash -941070993, now seen corresponding path program 1 times [2022-11-18 18:35:58,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:58,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140826240] [2022-11-18 18:35:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:58,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:58,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140826240] [2022-11-18 18:35:58,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140826240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:58,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:58,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:35:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829636609] [2022-11-18 18:35:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:58,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:35:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:35:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,454 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 18:35:58,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:58,472 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-11-18 18:35:58,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:35:58,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-11-18 18:35:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:58,475 INFO L225 Difference]: With dead ends: 24 [2022-11-18 18:35:58,475 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 18:35:58,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:35:58,479 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:58,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 18:35:58,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 18:35:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 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 18:35:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-18 18:35:58,492 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2022-11-18 18:35:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:58,493 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-18 18:35:58,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 18:35:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-18 18:35:58,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 18:35:58,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:58,495 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:58,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:35:58,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:58,500 INFO L85 PathProgramCache]: Analyzing trace with hash 891572109, now seen corresponding path program 1 times [2022-11-18 18:35:58,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:58,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922748083] [2022-11-18 18:35:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:58,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:58,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922748083] [2022-11-18 18:35:58,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922748083] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:35:58,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156720298] [2022-11-18 18:35:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:58,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:35:58,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:35:58,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:35:58,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:35:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:58,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:35:58,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:35:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:58,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:35:58,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:58,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156720298] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:35:58,739 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:35:58,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-18 18:35:58,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646496806] [2022-11-18 18:35:58,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:35:58,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:35:58,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:58,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:35:58,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:35:58,741 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 18:35:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:58,787 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-18 18:35:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:35:58,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) Word has length 11 [2022-11-18 18:35:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:58,788 INFO L225 Difference]: With dead ends: 30 [2022-11-18 18:35:58,788 INFO L226 Difference]: Without dead ends: 29 [2022-11-18 18:35:58,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:35:58,790 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 39 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:58,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 15 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-18 18:35:58,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-11-18 18:35:58,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 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 18:35:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-11-18 18:35:58,796 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2022-11-18 18:35:58,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:58,796 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-18 18:35:58,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 18:35:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-11-18 18:35:58,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:35:58,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:58,797 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:58,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:35:59,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 18:35:59,003 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:59,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:59,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1868931659, now seen corresponding path program 1 times [2022-11-18 18:35:59,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:59,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617337527] [2022-11-18 18:35:59,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:59,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:59,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:59,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617337527] [2022-11-18 18:35:59,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617337527] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:35:59,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853719027] [2022-11-18 18:35:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:59,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:35:59,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:35:59,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:35:59,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:35:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:59,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:35:59,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:35:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:59,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:35:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:59,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853719027] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:35:59,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:35:59,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-18 18:35:59,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111996912] [2022-11-18 18:35:59,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:35:59,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:35:59,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:59,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:35:59,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:35:59,184 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 18:35:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:59,207 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2022-11-18 18:35:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:35:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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) Word has length 12 [2022-11-18 18:35:59,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:59,208 INFO L225 Difference]: With dead ends: 49 [2022-11-18 18:35:59,209 INFO L226 Difference]: Without dead ends: 48 [2022-11-18 18:35:59,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:35:59,210 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:59,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 31 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:59,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-18 18:35:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-11-18 18:35:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 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 18:35:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2022-11-18 18:35:59,218 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 12 [2022-11-18 18:35:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:59,218 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-11-18 18:35:59,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 18:35:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2022-11-18 18:35:59,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 18:35:59,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:59,220 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-18 18:35:59,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:35:59,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:35:59,425 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:59,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash -594602662, now seen corresponding path program 1 times [2022-11-18 18:35:59,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:59,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547278308] [2022-11-18 18:35:59,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:59,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:59,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:59,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547278308] [2022-11-18 18:35:59,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547278308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:35:59,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603702393] [2022-11-18 18:35:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:59,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:35:59,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:35:59,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:35:59,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:35:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:59,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:35:59,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:35:59,607 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:59,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:35:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:35:59,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603702393] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:35:59,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:35:59,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 18:35:59,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806220715] [2022-11-18 18:35:59,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:35:59,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:35:59,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:59,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:35:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:35:59,664 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 18:35:59,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:59,696 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2022-11-18 18:35:59,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:35:59,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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) Word has length 19 [2022-11-18 18:35:59,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:59,698 INFO L225 Difference]: With dead ends: 61 [2022-11-18 18:35:59,698 INFO L226 Difference]: Without dead ends: 60 [2022-11-18 18:35:59,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:35:59,700 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:59,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 29 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:35:59,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-18 18:35:59,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2022-11-18 18:35:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.087719298245614) internal successors, (62), 58 states have internal predecessors, (62), 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 18:35:59,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2022-11-18 18:35:59,708 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 19 [2022-11-18 18:35:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:59,708 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2022-11-18 18:35:59,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 18:35:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2022-11-18 18:35:59,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:35:59,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:59,710 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2022-11-18 18:35:59,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 18:35:59,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:35:59,915 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:35:59,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:59,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1024551583, now seen corresponding path program 1 times [2022-11-18 18:35:59,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:59,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820240733] [2022-11-18 18:35:59,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:59,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:59,997 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 18:35:59,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820240733] [2022-11-18 18:35:59,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820240733] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:35:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446137811] [2022-11-18 18:35:59,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:59,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:35:59,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:00,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:00,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:36:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:00,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:36:00,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:00,105 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 18:36:00,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:36:00,192 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 18:36:00,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446137811] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:36:00,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:36:00,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 18:36:00,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004022050] [2022-11-18 18:36:00,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:36:00,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:36:00,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:00,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:36:00,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:36:00,195 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 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 18:36:00,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:00,224 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2022-11-18 18:36:00,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:36:00,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 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) Word has length 23 [2022-11-18 18:36:00,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:00,226 INFO L225 Difference]: With dead ends: 59 [2022-11-18 18:36:00,226 INFO L226 Difference]: Without dead ends: 58 [2022-11-18 18:36:00,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:36:00,227 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:00,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:36:00,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-18 18:36:00,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 33. [2022-11-18 18:36:00,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 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 18:36:00,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-18 18:36:00,233 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 23 [2022-11-18 18:36:00,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:00,233 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-18 18:36:00,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 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 18:36:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-18 18:36:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 18:36:00,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:00,234 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-18 18:36:00,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:36:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 18:36:00,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:36:00,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash -686336720, now seen corresponding path program 2 times [2022-11-18 18:36:00,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:00,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307700936] [2022-11-18 18:36:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:00,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:00,542 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:00,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:00,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307700936] [2022-11-18 18:36:00,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307700936] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:36:00,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544413324] [2022-11-18 18:36:00,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:36:00,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:00,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:00,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:00,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:36:00,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:36:00,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:36:00,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:36:00,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:00,711 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:00,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:36:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:00,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544413324] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:36:00,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:36:00,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 18:36:00,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399797281] [2022-11-18 18:36:00,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:36:00,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:36:00,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:00,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:36:00,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:36:00,835 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 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 18:36:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:00,887 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2022-11-18 18:36:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:36:00,888 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 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) Word has length 30 [2022-11-18 18:36:00,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:00,889 INFO L225 Difference]: With dead ends: 70 [2022-11-18 18:36:00,889 INFO L226 Difference]: Without dead ends: 69 [2022-11-18 18:36:00,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:36:00,890 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 39 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:00,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 53 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:36:00,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-18 18:36:00,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-18 18:36:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 68 states have internal predecessors, (70), 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 18:36:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2022-11-18 18:36:00,897 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 30 [2022-11-18 18:36:00,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:00,898 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2022-11-18 18:36:00,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 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 18:36:00,898 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2022-11-18 18:36:00,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-18 18:36:00,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:00,900 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2022-11-18 18:36:00,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:36:01,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:01,106 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:36:01,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:01,106 INFO L85 PathProgramCache]: Analyzing trace with hash -280306374, now seen corresponding path program 3 times [2022-11-18 18:36:01,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:01,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023551817] [2022-11-18 18:36:01,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:01,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:01,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:01,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023551817] [2022-11-18 18:36:01,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023551817] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:36:01,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866099853] [2022-11-18 18:36:01,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:36:01,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:01,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:01,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:01,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:36:01,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 18:36:01,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:36:01,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 18:36:01,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:01,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:36:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:02,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866099853] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:36:02,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:36:02,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-18 18:36:02,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683507199] [2022-11-18 18:36:02,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:36:02,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 18:36:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 18:36:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:36:02,058 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 24 states, 23 states have (on average 5.695652173913044) internal successors, (131), 24 states have internal predecessors, (131), 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 18:36:02,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:02,165 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2022-11-18 18:36:02,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 18:36:02,166 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.695652173913044) internal successors, (131), 24 states have internal predecessors, (131), 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) Word has length 66 [2022-11-18 18:36:02,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:02,171 INFO L225 Difference]: With dead ends: 142 [2022-11-18 18:36:02,171 INFO L226 Difference]: Without dead ends: 141 [2022-11-18 18:36:02,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-18 18:36:02,172 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 68 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:02,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 101 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:36:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-18 18:36:02,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-11-18 18:36:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.0142857142857142) internal successors, (142), 140 states have internal predecessors, (142), 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 18:36:02,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 142 transitions. [2022-11-18 18:36:02,199 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 142 transitions. Word has length 66 [2022-11-18 18:36:02,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:02,202 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 142 transitions. [2022-11-18 18:36:02,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.695652173913044) internal successors, (131), 24 states have internal predecessors, (131), 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 18:36:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 142 transitions. [2022-11-18 18:36:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-18 18:36:02,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:02,210 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2022-11-18 18:36:02,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:36:02,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:02,416 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:36:02,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1296774734, now seen corresponding path program 4 times [2022-11-18 18:36:02,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:02,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089116036] [2022-11-18 18:36:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:02,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:03,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:03,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089116036] [2022-11-18 18:36:03,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089116036] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:36:03,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959832968] [2022-11-18 18:36:03,201 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 18:36:03,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:03,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:03,203 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:03,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:36:03,297 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 18:36:03,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:36:03,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 18:36:03,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:03,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:36:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:04,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959832968] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:36:04,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:36:04,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-18 18:36:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570103123] [2022-11-18 18:36:04,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:36:04,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 18:36:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:04,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 18:36:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 18:36:04,551 INFO L87 Difference]: Start difference. First operand 141 states and 142 transitions. Second operand has 48 states, 47 states have (on average 5.851063829787234) internal successors, (275), 48 states have internal predecessors, (275), 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 18:36:04,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:04,763 INFO L93 Difference]: Finished difference Result 286 states and 310 transitions. [2022-11-18 18:36:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 18:36:04,764 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.851063829787234) internal successors, (275), 48 states have internal predecessors, (275), 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) Word has length 138 [2022-11-18 18:36:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:04,768 INFO L225 Difference]: With dead ends: 286 [2022-11-18 18:36:04,768 INFO L226 Difference]: Without dead ends: 285 [2022-11-18 18:36:04,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 18:36:04,771 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 156 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:04,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 197 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:36:04,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-18 18:36:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-11-18 18:36:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.0070422535211268) internal successors, (286), 284 states have internal predecessors, (286), 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 18:36:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 286 transitions. [2022-11-18 18:36:04,799 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 286 transitions. Word has length 138 [2022-11-18 18:36:04,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:04,799 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 286 transitions. [2022-11-18 18:36:04,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.851063829787234) internal successors, (275), 48 states have internal predecessors, (275), 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 18:36:04,800 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 286 transitions. [2022-11-18 18:36:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-18 18:36:04,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:04,805 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2022-11-18 18:36:04,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 18:36:05,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 18:36:05,011 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:36:05,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1277752202, now seen corresponding path program 5 times [2022-11-18 18:36:05,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:05,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81169912] [2022-11-18 18:36:05,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:05,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:08,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:08,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81169912] [2022-11-18 18:36:08,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81169912] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:36:08,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168071632] [2022-11-18 18:36:08,085 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 18:36:08,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:08,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:08,087 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:08,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 18:36:08,287 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-18 18:36:08,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:36:08,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 18:36:08,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:08,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:36:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:12,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168071632] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:36:12,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:36:12,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-18 18:36:12,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541429160] [2022-11-18 18:36:12,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:36:12,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-18 18:36:12,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:12,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-18 18:36:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 18:36:12,311 INFO L87 Difference]: Start difference. First operand 285 states and 286 transitions. Second operand has 96 states, 95 states have (on average 5.926315789473684) internal successors, (563), 96 states have internal predecessors, (563), 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 18:36:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:12,871 INFO L93 Difference]: Finished difference Result 574 states and 622 transitions. [2022-11-18 18:36:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-18 18:36:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.926315789473684) internal successors, (563), 96 states have internal predecessors, (563), 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) Word has length 282 [2022-11-18 18:36:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:12,874 INFO L225 Difference]: With dead ends: 574 [2022-11-18 18:36:12,875 INFO L226 Difference]: Without dead ends: 573 [2022-11-18 18:36:12,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 18:36:12,879 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 300 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:12,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 387 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:36:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-11-18 18:36:12,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-11-18 18:36:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 1.0034965034965035) internal successors, (574), 572 states have internal predecessors, (574), 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 18:36:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 574 transitions. [2022-11-18 18:36:12,901 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 574 transitions. Word has length 282 [2022-11-18 18:36:12,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:12,902 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 574 transitions. [2022-11-18 18:36:12,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.926315789473684) internal successors, (563), 96 states have internal predecessors, (563), 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 18:36:12,903 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 574 transitions. [2022-11-18 18:36:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-11-18 18:36:12,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:12,915 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2022-11-18 18:36:12,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:36:13,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 18:36:13,121 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:36:13,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:13,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1649100998, now seen corresponding path program 6 times [2022-11-18 18:36:13,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:13,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966951872] [2022-11-18 18:36:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:13,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:36:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:21,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:36:21,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966951872] [2022-11-18 18:36:21,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966951872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:36:21,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141695981] [2022-11-18 18:36:21,650 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 18:36:21,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:36:21,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:36:21,655 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:36:21,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 18:36:22,196 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-18 18:36:22,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:36:22,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 18:36:22,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:36:23,003 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:23,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:36:34,638 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:36:34,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141695981] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:36:34,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:36:34,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-18 18:36:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405073897] [2022-11-18 18:36:34,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:36:34,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-18 18:36:34,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:36:34,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-18 18:36:34,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 18:36:34,654 INFO L87 Difference]: Start difference. First operand 573 states and 574 transitions. Second operand has 192 states, 191 states have (on average 5.963350785340314) internal successors, (1139), 192 states have internal predecessors, (1139), 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 18:36:36,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:36:36,538 INFO L93 Difference]: Finished difference Result 1150 states and 1246 transitions. [2022-11-18 18:36:36,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-18 18:36:36,539 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.963350785340314) internal successors, (1139), 192 states have internal predecessors, (1139), 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) Word has length 570 [2022-11-18 18:36:36,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:36:36,544 INFO L225 Difference]: With dead ends: 1150 [2022-11-18 18:36:36,544 INFO L226 Difference]: Without dead ends: 1149 [2022-11-18 18:36:36,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 1044 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-18 18:36:36,549 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 589 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:36:36,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 773 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 18:36:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2022-11-18 18:36:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1149. [2022-11-18 18:36:36,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 1.0017421602787457) internal successors, (1150), 1148 states have internal predecessors, (1150), 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 18:36:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1150 transitions. [2022-11-18 18:36:36,584 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1150 transitions. Word has length 570 [2022-11-18 18:36:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:36:36,585 INFO L495 AbstractCegarLoop]: Abstraction has 1149 states and 1150 transitions. [2022-11-18 18:36:36,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.963350785340314) internal successors, (1139), 192 states have internal predecessors, (1139), 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 18:36:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1150 transitions. [2022-11-18 18:36:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2022-11-18 18:36:36,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:36:36,637 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 1, 1, 1, 1, 1] [2022-11-18 18:36:36,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:36:36,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 18:36:36,844 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:36:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:36:36,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1579549030, now seen corresponding path program 7 times [2022-11-18 18:36:36,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:36:36,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822744255] [2022-11-18 18:36:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:36:36,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:36:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 108300 backedges. 0 proven. 108300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:09,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822744255] [2022-11-18 18:37:09,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822744255] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:37:09,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176350812] [2022-11-18 18:37:09,637 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 18:37:09,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:37:09,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:37:09,638 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:37:09,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 18:37:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:10,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1916 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-18 18:37:10,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:37:11,819 INFO L134 CoverageAnalysis]: Checked inductivity of 108300 backedges. 0 proven. 108300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:11,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:37:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 108300 backedges. 0 proven. 108300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:56,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176350812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:37:56,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:37:56,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-18 18:37:56,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852344631] [2022-11-18 18:37:56,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:37:56,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-18 18:37:56,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:56,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-18 18:37:56,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-18 18:37:56,256 INFO L87 Difference]: Start difference. First operand 1149 states and 1150 transitions. Second operand has 384 states, 383 states have (on average 5.981723237597911) internal successors, (2291), 384 states have internal predecessors, (2291), 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 18:38:04,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:38:04,599 INFO L93 Difference]: Finished difference Result 2302 states and 2494 transitions. [2022-11-18 18:38:04,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-18 18:38:04,603 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.981723237597911) internal successors, (2291), 384 states have internal predecessors, (2291), 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) Word has length 1146 [2022-11-18 18:38:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:38:04,611 INFO L225 Difference]: With dead ends: 2302 [2022-11-18 18:38:04,611 INFO L226 Difference]: Without dead ends: 2301 [2022-11-18 18:38:04,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2482 GetRequests, 2100 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.0s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-18 18:38:04,621 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1168 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:38:04,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 1543 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 18:38:04,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2022-11-18 18:38:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2301. [2022-11-18 18:38:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2300 states have (on average 1.0008695652173913) internal successors, (2302), 2300 states have internal predecessors, (2302), 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 18:38:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 2302 transitions. [2022-11-18 18:38:04,686 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 2302 transitions. Word has length 1146 [2022-11-18 18:38:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:38:04,688 INFO L495 AbstractCegarLoop]: Abstraction has 2301 states and 2302 transitions. [2022-11-18 18:38:04,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.981723237597911) internal successors, (2291), 384 states have internal predecessors, (2291), 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 18:38:04,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 2302 transitions. [2022-11-18 18:38:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2299 [2022-11-18 18:38:04,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:38:04,728 INFO L195 NwaCegarLoop]: trace histogram [383, 382, 382, 382, 382, 382, 1, 1, 1, 1, 1] [2022-11-18 18:38:04,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:38:04,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 18:38:04,936 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:38:04,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:04,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1650167130, now seen corresponding path program 8 times [2022-11-18 18:38:04,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:04,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107491115] [2022-11-18 18:38:04,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:04,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 437772 backedges. 0 proven. 437772 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:15,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:15,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107491115] [2022-11-18 18:41:15,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107491115] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:41:15,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273114153] [2022-11-18 18:41:15,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:41:15,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:41:15,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:15,684 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:41:15,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 18:41:16,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:41:16,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:41:16,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 3836 conjuncts, 384 conjunts are in the unsatisfiable core [2022-11-18 18:41:16,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:41:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 437772 backedges. 0 proven. 437772 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:19,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 437772 backedges. 0 proven. 437772 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:18,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273114153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:18,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:18,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2022-11-18 18:44:18,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744107272] [2022-11-18 18:44:18,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:18,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2022-11-18 18:44:18,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:18,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2022-11-18 18:44:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2022-11-18 18:44:18,879 INFO L87 Difference]: Start difference. First operand 2301 states and 2302 transitions. Second operand has 768 states, 767 states have (on average 5.990873533246415) internal successors, (4595), 768 states have internal predecessors, (4595), 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 18:45:12,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:12,920 INFO L93 Difference]: Finished difference Result 4606 states and 4990 transitions. [2022-11-18 18:45:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2022-11-18 18:45:12,923 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 767 states have (on average 5.990873533246415) internal successors, (4595), 768 states have internal predecessors, (4595), 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) Word has length 2298 [2022-11-18 18:45:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:12,938 INFO L225 Difference]: With dead ends: 4606 [2022-11-18 18:45:12,939 INFO L226 Difference]: Without dead ends: 4605 [2022-11-18 18:45:12,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4978 GetRequests, 4212 SyntacticMatches, 0 SemanticMatches, 766 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 232.5s TimeCoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2022-11-18 18:45:12,965 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1932 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:12,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 3080 Invalid, 1931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [391 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 18:45:12,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2022-11-18 18:45:13,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4605. [2022-11-18 18:45:13,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4605 states, 4604 states have (on average 1.0004344048653344) internal successors, (4606), 4604 states have internal predecessors, (4606), 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 18:45:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 4606 transitions. [2022-11-18 18:45:13,091 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 4606 transitions. Word has length 2298 [2022-11-18 18:45:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:13,094 INFO L495 AbstractCegarLoop]: Abstraction has 4605 states and 4606 transitions. [2022-11-18 18:45:13,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 767 states have (on average 5.990873533246415) internal successors, (4595), 768 states have internal predecessors, (4595), 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 18:45:13,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 4606 transitions. [2022-11-18 18:45:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4603 [2022-11-18 18:45:13,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:13,213 INFO L195 NwaCegarLoop]: trace histogram [767, 766, 766, 766, 766, 766, 1, 1, 1, 1, 1] [2022-11-18 18:45:13,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:13,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef5a092e-7a02-449c-ae0d-bc973125ec62/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 18:45:13,426 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-18 18:45:13,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:13,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1681566426, now seen corresponding path program 9 times [2022-11-18 18:45:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:45:13,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788534359] [2022-11-18 18:45:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:45:13,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:45:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat