./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45ff7b74faf4250f77b788e07275d725ea3dbcc73af0b2b0d64dcf5aa7f7b78a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:28:52,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:28:52,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-23 21:28:52,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:28:52,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:28:52,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:28:52,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:28:52,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:28:52,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:28:53,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:28:53,001 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:28:53,002 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:28:53,002 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:28:53,004 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:28:53,004 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:28:53,005 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:28:53,005 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:28:53,006 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:28:53,006 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:28:53,007 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:28:53,009 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:28:53,009 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:28:53,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:28:53,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:28:53,011 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:28:53,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:28:53,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:28:53,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:28:53,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:28:53,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:28:53,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:28:53,015 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:28:53,016 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:28:53,016 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:28:53,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:28:53,016 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:28:53,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:28:53,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:28:53,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:28:53,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:53,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:28:53,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:28:53,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:28:53,019 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:28:53,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:28:53,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:28:53,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:28:53,021 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:28:53,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:28:53,021 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ff7b74faf4250f77b788e07275d725ea3dbcc73af0b2b0d64dcf5aa7f7b78a [2023-11-23 21:28:53,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:28:53,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:28:53,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:28:53,323 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:28:53,324 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:28:53,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2023-11-23 21:28:56,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:56,713 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:56,717 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2023-11-23 21:28:56,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/data/a8f2533a0/8f64b4b4d26a4d5997595600d47a7beb/FLAGc22246dba [2023-11-23 21:28:56,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/data/a8f2533a0/8f64b4b4d26a4d5997595600d47a7beb [2023-11-23 21:28:56,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:56,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:56,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:56,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:56,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:56,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:56" (1/1) ... [2023-11-23 21:28:56,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7222880f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:56, skipping insertion in model container [2023-11-23 21:28:56,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:56" (1/1) ... [2023-11-23 21:28:56,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:56,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:56,996 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:28:57,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:57,038 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:28:57,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57 WrapperNode [2023-11-23 21:28:57,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:57,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:57,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:28:57,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:28:57,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,089 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2023-11-23 21:28:57,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:57,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:28:57,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:28:57,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:28:57,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:28:57,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:28:57,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:28:57,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:28:57,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (1/1) ... [2023-11-23 21:28:57,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:57,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:57,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:28:57,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:28:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:28:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:28:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:28:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:28:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:28:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:28:57,278 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:28:57,281 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:57,611 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:28:57,673 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:28:57,673 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:28:57,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:57 BoogieIcfgContainer [2023-11-23 21:28:57,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:28:57,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:28:57,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:28:57,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:28:57,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:56" (1/3) ... [2023-11-23 21:28:57,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7847fc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:57, skipping insertion in model container [2023-11-23 21:28:57,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:57" (2/3) ... [2023-11-23 21:28:57,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7847fc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:57, skipping insertion in model container [2023-11-23 21:28:57,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:57" (3/3) ... [2023-11-23 21:28:57,686 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_valuebound1.c [2023-11-23 21:28:57,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:28:57,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-23 21:28:57,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:28:57,757 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1fcf4a80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:28:57,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-23 21:28:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 32 states have (on average 1.90625) internal successors, (61), 56 states have internal predecessors, (61), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:28:57,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:28:57,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:57,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:28:57,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:28:57,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:57,775 INFO L85 PathProgramCache]: Analyzing trace with hash 5411999, now seen corresponding path program 1 times [2023-11-23 21:28:57,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:57,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758816136] [2023-11-23 21:28:57,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:57,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:57,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:57,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758816136] [2023-11-23 21:28:57,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 21:28:57,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240771160] [2023-11-23 21:28:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:57,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:57,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:57,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:57,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:28:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:58,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:28:58,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:28:58,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:58,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240771160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:58,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:58,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:28:58,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127211899] [2023-11-23 21:28:58,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:58,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:28:58,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:58,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:28:58,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:28:58,168 INFO L87 Difference]: Start difference. First operand has 65 states, 32 states have (on average 1.90625) internal successors, (61), 56 states have internal predecessors, (61), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:28:58,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:58,216 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2023-11-23 21:28:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:28:58,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-11-23 21:28:58,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:58,228 INFO L225 Difference]: With dead ends: 112 [2023-11-23 21:28:58,229 INFO L226 Difference]: Without dead ends: 61 [2023-11-23 21:28:58,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:28:58,237 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 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 [2023-11-23 21:28:58,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:28:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-23 21:28:58,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-23 21:28:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 54 states have internal predecessors, (57), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:28:58,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2023-11-23 21:28:58,289 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 4 [2023-11-23 21:28:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:58,290 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2023-11-23 21:28:58,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:28:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2023-11-23 21:28:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:28:58,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:58,292 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:58,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:28:58,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:58,494 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:28:58,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:58,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1773892784, now seen corresponding path program 1 times [2023-11-23 21:28:58,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:58,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458354093] [2023-11-23 21:28:58,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:58,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:58,514 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:28:58,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682310020] [2023-11-23 21:28:58,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:58,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:58,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:58,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:58,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:28:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:58,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:28:58,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:28:58,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:58,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:58,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458354093] [2023-11-23 21:28:58,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:28:58,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682310020] [2023-11-23 21:28:58,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682310020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:58,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:58,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:28:58,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036004253] [2023-11-23 21:28:58,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:58,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:58,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:58,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:58,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:58,686 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:28:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:58,835 INFO L93 Difference]: Finished difference Result 143 states and 159 transitions. [2023-11-23 21:28:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:58,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 9 [2023-11-23 21:28:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:58,841 INFO L225 Difference]: With dead ends: 143 [2023-11-23 21:28:58,841 INFO L226 Difference]: Without dead ends: 96 [2023-11-23 21:28:58,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:58,845 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:58,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 85 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:28:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-23 21:28:58,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 82. [2023-11-23 21:28:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 47 states have (on average 1.702127659574468) internal successors, (80), 70 states have internal predecessors, (80), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:28:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2023-11-23 21:28:58,872 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 9 [2023-11-23 21:28:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:58,873 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2023-11-23 21:28:58,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:28:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2023-11-23 21:28:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:28:58,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:58,875 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:58,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:28:59,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:59,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:28:59,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1034739291, now seen corresponding path program 1 times [2023-11-23 21:28:59,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819819498] [2023-11-23 21:28:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:59,106 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:28:59,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015225798] [2023-11-23 21:28:59,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:59,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:59,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:59,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:59,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:28:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:59,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:28:59,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:28:59,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:59,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:59,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819819498] [2023-11-23 21:28:59,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:28:59,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015225798] [2023-11-23 21:28:59,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015225798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:59,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:59,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:28:59,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300032434] [2023-11-23 21:28:59,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:59,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:59,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:59,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:59,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:59,206 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:28:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:59,281 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2023-11-23 21:28:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:59,281 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 15 [2023-11-23 21:28:59,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:59,283 INFO L225 Difference]: With dead ends: 109 [2023-11-23 21:28:59,283 INFO L226 Difference]: Without dead ends: 107 [2023-11-23 21:28:59,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:59,285 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:59,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 79 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:28:59,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-23 21:28:59,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 92. [2023-11-23 21:28:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 78 states have internal predecessors, (94), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:28:59,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2023-11-23 21:28:59,301 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 15 [2023-11-23 21:28:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:59,301 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2023-11-23 21:28:59,302 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:28:59,302 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2023-11-23 21:28:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:28:59,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:59,303 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:59,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:28:59,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:59,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:28:59,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:59,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2012148263, now seen corresponding path program 1 times [2023-11-23 21:28:59,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:59,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847027206] [2023-11-23 21:28:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:59,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:59,558 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:28:59,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301921490] [2023-11-23 21:28:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:59,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:59,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:59,570 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:59,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:28:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:59,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:28:59,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:28:59,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:59,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:59,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847027206] [2023-11-23 21:28:59,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:28:59,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301921490] [2023-11-23 21:28:59,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301921490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:59,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:59,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:28:59,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212981615] [2023-11-23 21:28:59,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:59,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:59,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:59,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:59,676 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:28:59,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:59,743 INFO L93 Difference]: Finished difference Result 133 states and 162 transitions. [2023-11-23 21:28:59,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:59,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2023-11-23 21:28:59,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:59,745 INFO L225 Difference]: With dead ends: 133 [2023-11-23 21:28:59,745 INFO L226 Difference]: Without dead ends: 129 [2023-11-23 21:28:59,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:59,751 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 44 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:59,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 78 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:28:59,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-23 21:28:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 109. [2023-11-23 21:28:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.619718309859155) internal successors, (115), 93 states have internal predecessors, (115), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:28:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 143 transitions. [2023-11-23 21:28:59,782 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 143 transitions. Word has length 16 [2023-11-23 21:28:59,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:59,782 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 143 transitions. [2023-11-23 21:28:59,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:28:59,782 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 143 transitions. [2023-11-23 21:28:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:28:59,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:59,783 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:59,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:28:59,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:59,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:28:59,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:59,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2012146885, now seen corresponding path program 1 times [2023-11-23 21:28:59,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:59,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216359111] [2023-11-23 21:28:59,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:59,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:00,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:00,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556187945] [2023-11-23 21:29:00,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:00,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:00,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:00,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:00,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:29:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:00,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:29:00,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:00,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:29:00,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:00,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:00,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216359111] [2023-11-23 21:29:00,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:00,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556187945] [2023-11-23 21:29:00,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556187945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:00,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:00,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:29:00,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692001498] [2023-11-23 21:29:00,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:00,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:00,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:00,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:00,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:00,104 INFO L87 Difference]: Start difference. First operand 109 states and 143 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:00,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:00,160 INFO L93 Difference]: Finished difference Result 118 states and 148 transitions. [2023-11-23 21:29:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:00,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2023-11-23 21:29:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:00,162 INFO L225 Difference]: With dead ends: 118 [2023-11-23 21:29:00,163 INFO L226 Difference]: Without dead ends: 117 [2023-11-23 21:29:00,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:00,164 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 16 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:00,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 97 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:29:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-23 21:29:00,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 109. [2023-11-23 21:29:00,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.6056338028169015) internal successors, (114), 93 states have internal predecessors, (114), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:29:00,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 142 transitions. [2023-11-23 21:29:00,197 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 142 transitions. Word has length 16 [2023-11-23 21:29:00,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:00,198 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 142 transitions. [2023-11-23 21:29:00,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 142 transitions. [2023-11-23 21:29:00,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 21:29:00,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:00,200 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:00,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:00,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:00,415 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:00,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash -939194885, now seen corresponding path program 1 times [2023-11-23 21:29:00,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:00,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227695457] [2023-11-23 21:29:00,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:00,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:00,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:00,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295350659] [2023-11-23 21:29:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:00,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:00,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:00,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:00,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:29:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:00,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:29:00,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:29:00,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:00,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:00,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227695457] [2023-11-23 21:29:00,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:00,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295350659] [2023-11-23 21:29:00,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295350659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:00,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:00,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:00,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55485359] [2023-11-23 21:29:00,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:00,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:29:00,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:00,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:29:00,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:00,573 INFO L87 Difference]: Start difference. First operand 109 states and 142 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:00,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:00,754 INFO L93 Difference]: Finished difference Result 125 states and 149 transitions. [2023-11-23 21:29:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:00,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2023-11-23 21:29:00,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:00,757 INFO L225 Difference]: With dead ends: 125 [2023-11-23 21:29:00,757 INFO L226 Difference]: Without dead ends: 124 [2023-11-23 21:29:00,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:00,759 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:00,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 90 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:29:00,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-23 21:29:00,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2023-11-23 21:29:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 93 states have internal predecessors, (111), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:29:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 139 transitions. [2023-11-23 21:29:00,781 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 139 transitions. Word has length 18 [2023-11-23 21:29:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:00,782 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 139 transitions. [2023-11-23 21:29:00,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:00,783 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 139 transitions. [2023-11-23 21:29:00,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:29:00,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:00,784 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:00,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:00,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:00,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:00,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:00,996 INFO L85 PathProgramCache]: Analyzing trace with hash 949729724, now seen corresponding path program 1 times [2023-11-23 21:29:00,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:00,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768523799] [2023-11-23 21:29:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:00,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:01,008 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:01,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739760065] [2023-11-23 21:29:01,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:01,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:01,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:01,010 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:01,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:29:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:01,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:29:01,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:29:01,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:01,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:01,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768523799] [2023-11-23 21:29:01,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:01,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739760065] [2023-11-23 21:29:01,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739760065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:01,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:01,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:29:01,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521086513] [2023-11-23 21:29:01,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:01,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:01,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:01,198 INFO L87 Difference]: Start difference. First operand 109 states and 139 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:01,376 INFO L93 Difference]: Finished difference Result 116 states and 144 transitions. [2023-11-23 21:29:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:29:01,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2023-11-23 21:29:01,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:01,379 INFO L225 Difference]: With dead ends: 116 [2023-11-23 21:29:01,379 INFO L226 Difference]: Without dead ends: 115 [2023-11-23 21:29:01,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:29:01,380 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 34 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:01,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 106 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:29:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-23 21:29:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2023-11-23 21:29:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.5492957746478873) internal successors, (110), 93 states have internal predecessors, (110), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:29:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 138 transitions. [2023-11-23 21:29:01,408 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 138 transitions. Word has length 19 [2023-11-23 21:29:01,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:01,408 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 138 transitions. [2023-11-23 21:29:01,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:01,408 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 138 transitions. [2023-11-23 21:29:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 21:29:01,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:01,410 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:01,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:01,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:01,623 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:01,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1256233379, now seen corresponding path program 1 times [2023-11-23 21:29:01,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:01,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491255154] [2023-11-23 21:29:01,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:01,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:01,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:01,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40628601] [2023-11-23 21:29:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:01,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:01,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:01,638 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:01,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:29:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:01,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:29:01,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:29:01,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:01,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:01,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491255154] [2023-11-23 21:29:01,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:01,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40628601] [2023-11-23 21:29:01,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40628601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:01,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:01,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:01,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644900218] [2023-11-23 21:29:01,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:01,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:29:01,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:01,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:29:01,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:01,814 INFO L87 Difference]: Start difference. First operand 109 states and 138 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 21:29:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:01,914 INFO L93 Difference]: Finished difference Result 116 states and 143 transitions. [2023-11-23 21:29:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:29:01,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2023-11-23 21:29:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:01,916 INFO L225 Difference]: With dead ends: 116 [2023-11-23 21:29:01,917 INFO L226 Difference]: Without dead ends: 106 [2023-11-23 21:29:01,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:01,918 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 56 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:01,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 89 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:29:01,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-23 21:29:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2023-11-23 21:29:01,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 71 states have (on average 1.4366197183098592) internal successors, (102), 89 states have internal predecessors, (102), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:29:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2023-11-23 21:29:01,932 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 26 [2023-11-23 21:29:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:01,933 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2023-11-23 21:29:01,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 21:29:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2023-11-23 21:29:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 21:29:01,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:01,934 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:01,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:02,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:02,151 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:02,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash -288529031, now seen corresponding path program 1 times [2023-11-23 21:29:02,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312367966] [2023-11-23 21:29:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:02,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:02,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:02,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972628584] [2023-11-23 21:29:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:02,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:02,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:02,163 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:02,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 21:29:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:02,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:29:02,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:29:02,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:02,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:02,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312367966] [2023-11-23 21:29:02,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:02,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972628584] [2023-11-23 21:29:02,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972628584] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:29:02,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1432205996] [2023-11-23 21:29:02,557 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-23 21:29:02,557 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:29:02,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:29:02,566 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:29:02,566 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:29:06,982 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2023-11-23 21:29:06,984 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:29:07,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1432205996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:07,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:29:07,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 9 [2023-11-23 21:29:07,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537506245] [2023-11-23 21:29:07,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:07,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:29:07,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:07,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:29:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:29:07,849 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:08,382 INFO L93 Difference]: Finished difference Result 125 states and 144 transitions. [2023-11-23 21:29:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:29:08,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-23 21:29:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:08,384 INFO L225 Difference]: With dead ends: 125 [2023-11-23 21:29:08,384 INFO L226 Difference]: Without dead ends: 99 [2023-11-23 21:29:08,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 8 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:29:08,387 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 81 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:08,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 58 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:29:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-23 21:29:08,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2023-11-23 21:29:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.396551724137931) internal successors, (81), 73 states have internal predecessors, (81), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:29:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 105 transitions. [2023-11-23 21:29:08,407 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 105 transitions. Word has length 27 [2023-11-23 21:29:08,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:08,408 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 105 transitions. [2023-11-23 21:29:08,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:29:08,408 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 105 transitions. [2023-11-23 21:29:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 21:29:08,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:08,415 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:08,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:08,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:08,631 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:08,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:08,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1468373349, now seen corresponding path program 1 times [2023-11-23 21:29:08,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:08,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869327008] [2023-11-23 21:29:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:08,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:08,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:08,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48498733] [2023-11-23 21:29:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:08,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:08,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:08,657 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:08,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 21:29:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:08,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:29:08,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 21:29:08,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 21:29:08,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:08,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869327008] [2023-11-23 21:29:08,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:08,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48498733] [2023-11-23 21:29:08,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48498733] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:29:08,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [698220583] [2023-11-23 21:29:08,910 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-11-23 21:29:08,911 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:29:08,911 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:29:08,912 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:29:08,912 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:29:10,667 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-11-23 21:29:10,668 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:29:11,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [698220583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:11,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:29:11,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3, 3] total 16 [2023-11-23 21:29:11,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596505753] [2023-11-23 21:29:11,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:11,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 21:29:11,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:11,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 21:29:11,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:29:11,671 INFO L87 Difference]: Start difference. First operand 87 states and 105 transitions. Second operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:29:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:12,286 INFO L93 Difference]: Finished difference Result 168 states and 203 transitions. [2023-11-23 21:29:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 21:29:12,287 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 49 [2023-11-23 21:29:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:12,288 INFO L225 Difference]: With dead ends: 168 [2023-11-23 21:29:12,288 INFO L226 Difference]: Without dead ends: 89 [2023-11-23 21:29:12,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-23 21:29:12,290 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:12,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 73 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:29:12,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-23 21:29:12,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77. [2023-11-23 21:29:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.36) internal successors, (68), 65 states have internal predecessors, (68), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:29:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2023-11-23 21:29:12,306 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 49 [2023-11-23 21:29:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:12,306 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2023-11-23 21:29:12,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:29:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2023-11-23 21:29:12,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 21:29:12,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:12,308 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:12,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:12,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:29:12,511 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:12,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2121081761, now seen corresponding path program 1 times [2023-11-23 21:29:12,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:12,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136829704] [2023-11-23 21:29:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:12,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:12,526 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:12,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415178551] [2023-11-23 21:29:12,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:12,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:12,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:12,528 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:12,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 21:29:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:12,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:29:12,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:29:12,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:12,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:12,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136829704] [2023-11-23 21:29:12,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:12,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415178551] [2023-11-23 21:29:12,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415178551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:12,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:12,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:29:12,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282991385] [2023-11-23 21:29:12,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:12,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:12,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:12,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:12,782 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 21:29:12,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:12,919 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2023-11-23 21:29:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:29:12,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2023-11-23 21:29:12,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:12,921 INFO L225 Difference]: With dead ends: 95 [2023-11-23 21:29:12,922 INFO L226 Difference]: Without dead ends: 94 [2023-11-23 21:29:12,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:12,923 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 35 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:12,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 116 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:29:12,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-23 21:29:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 78. [2023-11-23 21:29:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 66 states have internal predecessors, (69), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:29:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2023-11-23 21:29:12,951 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 53 [2023-11-23 21:29:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:12,953 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2023-11-23 21:29:12,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 21:29:12,953 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2023-11-23 21:29:12,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 21:29:12,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:12,955 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:12,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:13,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:13,175 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:13,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:13,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1329025034, now seen corresponding path program 1 times [2023-11-23 21:29:13,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:13,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473276943] [2023-11-23 21:29:13,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:13,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:13,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:13,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410058156] [2023-11-23 21:29:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:13,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:13,208 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:13,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 21:29:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:13,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:29:13,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:29:13,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:13,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:13,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473276943] [2023-11-23 21:29:13,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:13,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410058156] [2023-11-23 21:29:13,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410058156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:13,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:13,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892887891] [2023-11-23 21:29:13,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:13,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:29:13,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:13,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:29:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:13,414 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 21:29:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:13,479 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2023-11-23 21:29:13,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:13,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2023-11-23 21:29:13,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:13,481 INFO L225 Difference]: With dead ends: 80 [2023-11-23 21:29:13,481 INFO L226 Difference]: Without dead ends: 79 [2023-11-23 21:29:13,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:13,484 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:13,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 68 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:29:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-23 21:29:13,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-23 21:29:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 67 states have internal predecessors, (70), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:29:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2023-11-23 21:29:13,510 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 54 [2023-11-23 21:29:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:13,510 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2023-11-23 21:29:13,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-23 21:29:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2023-11-23 21:29:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 21:29:13,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:13,515 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:13,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:13,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 21:29:13,731 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:13,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:13,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1587768232, now seen corresponding path program 1 times [2023-11-23 21:29:13,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:13,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803462205] [2023-11-23 21:29:13,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:13,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:13,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:13,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334929478] [2023-11-23 21:29:13,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:13,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:13,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:13,744 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:13,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 21:29:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:13,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:29:13,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:29:14,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:14,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:14,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803462205] [2023-11-23 21:29:14,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:14,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334929478] [2023-11-23 21:29:14,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334929478] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:29:14,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [717195336] [2023-11-23 21:29:14,681 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-23 21:29:14,681 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:29:14,681 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:29:14,682 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:29:14,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:29:17,758 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-11-23 21:29:17,759 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:29:23,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [717195336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:23,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:29:23,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [5] total 25 [2023-11-23 21:29:23,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291729474] [2023-11-23 21:29:23,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:23,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-23 21:29:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:23,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 21:29:23,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=646, Unknown=2, NotChecked=0, Total=870 [2023-11-23 21:29:23,767 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 22 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:29:27,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:27,027 INFO L93 Difference]: Finished difference Result 113 states and 133 transitions. [2023-11-23 21:29:27,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 21:29:27,028 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 56 [2023-11-23 21:29:27,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:27,029 INFO L225 Difference]: With dead ends: 113 [2023-11-23 21:29:27,030 INFO L226 Difference]: Without dead ends: 105 [2023-11-23 21:29:27,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 92 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=596, Invalid=1564, Unknown=2, NotChecked=0, Total=2162 [2023-11-23 21:29:27,032 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 183 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:27,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 31 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 21:29:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-23 21:29:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 76. [2023-11-23 21:29:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 64 states have internal predecessors, (67), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:29:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2023-11-23 21:29:27,054 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 56 [2023-11-23 21:29:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:27,055 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2023-11-23 21:29:27,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:29:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2023-11-23 21:29:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 21:29:27,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:27,056 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:27,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:27,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 21:29:27,277 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 21:29:27,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:27,278 INFO L85 PathProgramCache]: Analyzing trace with hash -728486179, now seen corresponding path program 1 times [2023-11-23 21:29:27,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:27,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444034733] [2023-11-23 21:29:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:27,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:27,291 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:27,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783612879] [2023-11-23 21:29:27,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:27,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:27,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:27,293 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:27,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 21:29:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:27,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:29:27,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 21:29:27,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:30,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:30,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444034733] [2023-11-23 21:29:30,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:29:30,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783612879] [2023-11-23 21:29:30,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783612879] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:29:30,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [308788680] [2023-11-23 21:29:30,585 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-23 21:29:30,585 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:29:30,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:29:30,586 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:29:30,586 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:29:32,977 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-11-23 21:29:32,978 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:29:37,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [308788680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:37,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:29:37,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 20 [2023-11-23 21:29:37,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532999184] [2023-11-23 21:29:37,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:37,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 21:29:37,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:37,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 21:29:37,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=499, Unknown=2, NotChecked=0, Total=650 [2023-11-23 21:29:37,134 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 16 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:29:38,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:38,780 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2023-11-23 21:29:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 21:29:38,780 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 59 [2023-11-23 21:29:38,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:38,781 INFO L225 Difference]: With dead ends: 121 [2023-11-23 21:29:38,781 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:29:38,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 99 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=240, Invalid=750, Unknown=2, NotChecked=0, Total=992 [2023-11-23 21:29:38,783 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 90 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:38,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 38 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:29:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:29:38,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:29:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:29:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:29:38,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-23 21:29:38,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:38,784 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:29:38,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:29:38,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:29:38,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:29:38,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-23 21:29:38,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-23 21:29:38,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-23 21:29:38,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-23 21:29:38,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-23 21:29:38,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-23 21:29:38,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-23 21:29:38,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-23 21:29:38,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-23 21:29:38,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-23 21:29:38,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-23 21:29:38,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-23 21:29:38,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-23 21:29:38,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-23 21:29:38,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-23 21:29:38,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-23 21:29:38,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-23 21:29:38,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-23 21:29:38,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-23 21:29:38,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-23 21:29:38,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-23 21:29:38,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-23 21:29:38,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-23 21:29:38,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-23 21:29:38,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-23 21:29:38,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 21:29:39,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:29:42,415 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 21:29:42,415 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2023-11-23 21:29:42,415 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-23 21:29:42,416 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 44 56) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~B~0#1| 1))) (or (and .cse0 (<= |ULTIMATE.start_main_~A~0#1| 1) (or (and (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_69| Int)) (and (not (= |v_ULTIMATE.start_main_~p~0#1_69| 1)) (<= 1 |v_ULTIMATE.start_main_~p~0#1_69|) (= (div |v_ULTIMATE.start_main_~p~0#1_69| 2) |ULTIMATE.start_main_~d~0#1|) (<= |v_ULTIMATE.start_main_~p~0#1_69| 2))) (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~A~0#1|)) (and (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse1 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))) (exists ((|v_ULTIMATE.start_main_~p~0#1_71| Int)) (let ((.cse2 (div |v_ULTIMATE.start_main_~p~0#1_71| 2))) (and (<= |v_ULTIMATE.start_main_~p~0#1_71| 2) (= .cse2 |ULTIMATE.start_main_~d~0#1|) (= .cse2 |ULTIMATE.start_main_~p~0#1|)))) .cse3 (<= 0 |ULTIMATE.start_main_~A~0#1|)) (let ((.cse5 (select |#memory_int| 1)) (.cse4 (select |#memory_int| 2))) (and (= (select .cse4 7) 0) (= (select |#length| 3) 12) .cse0 (= 114 (select .cse4 2)) (= (select .cse4 6) 99) (= 97 (select .cse4 1)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~p~0#1|) (= (select .cse4 4) 50) (= 100 (select .cse4 3)) .cse1 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) (= (select |#valid| 0) 0) (= (select .cse4 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= (select .cse5 0) 48) .cse3 (= (select .cse5 1) 0) (= 2 |ULTIMATE.start_main_~d~0#1|) (= (select .cse4 0) 104))))) [2023-11-23 21:29:42,416 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-23 21:29:42,416 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 44 56) no Hoare annotation was computed. [2023-11-23 21:29:42,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,418 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-11-23 21:29:42,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-23 21:29:42,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-23 21:29:42,418 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-23 21:29:42,419 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2023-11-23 21:29:42,419 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,419 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,419 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,419 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,420 INFO L895 garLoopResultBuilder]: At program point L45-4(line 45) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~B~0#1| 1))) (or (and .cse0 (<= |ULTIMATE.start_main_~A~0#1| 1) (or (and (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_69| Int)) (and (not (= |v_ULTIMATE.start_main_~p~0#1_69| 1)) (<= 1 |v_ULTIMATE.start_main_~p~0#1_69|) (= (div |v_ULTIMATE.start_main_~p~0#1_69| 2) |ULTIMATE.start_main_~d~0#1|) (<= |v_ULTIMATE.start_main_~p~0#1_69| 2))) (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~A~0#1|)) (and (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse1 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))) (exists ((|v_ULTIMATE.start_main_~p~0#1_71| Int)) (let ((.cse2 (div |v_ULTIMATE.start_main_~p~0#1_71| 2))) (and (<= |v_ULTIMATE.start_main_~p~0#1_71| 2) (= .cse2 |ULTIMATE.start_main_~d~0#1|) (= .cse2 |ULTIMATE.start_main_~p~0#1|)))) .cse3 (<= 0 |ULTIMATE.start_main_~A~0#1|)) (let ((.cse5 (select |#memory_int| 1)) (.cse4 (select |#memory_int| 2))) (and (= (select .cse4 7) 0) (= (select |#length| 3) 12) .cse0 (= 114 (select .cse4 2)) (= (select .cse4 6) 99) (= 97 (select .cse4 1)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~p~0#1|) (= (select .cse4 4) 50) (= 100 (select .cse4 3)) .cse1 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) (= (select |#valid| 0) 0) (= (select .cse4 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= (select .cse5 0) 48) .cse3 (= (select .cse5 1) 0) (= 2 |ULTIMATE.start_main_~d~0#1|) (= (select .cse4 0) 104))))) [2023-11-23 21:29:42,420 INFO L899 garLoopResultBuilder]: For program point L45-5(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,420 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-11-23 21:29:42,421 INFO L895 garLoopResultBuilder]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-23 21:29:42,421 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 34 42) no Hoare annotation was computed. [2023-11-23 21:29:42,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-23 21:29:42,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-23 21:29:42,421 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-23 21:29:42,422 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-23 21:29:42,422 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-23 21:29:42,422 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~B~0#1| 1))) (or (and .cse0 (<= |ULTIMATE.start_main_~A~0#1| 1) (or (and (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_69| Int)) (and (not (= |v_ULTIMATE.start_main_~p~0#1_69| 1)) (<= 1 |v_ULTIMATE.start_main_~p~0#1_69|) (= (div |v_ULTIMATE.start_main_~p~0#1_69| 2) |ULTIMATE.start_main_~d~0#1|) (<= |v_ULTIMATE.start_main_~p~0#1_69| 2))) (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~A~0#1|)) (and (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse1 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))) (exists ((|v_ULTIMATE.start_main_~p~0#1_71| Int)) (let ((.cse2 (div |v_ULTIMATE.start_main_~p~0#1_71| 2))) (and (<= |v_ULTIMATE.start_main_~p~0#1_71| 2) (= .cse2 |ULTIMATE.start_main_~d~0#1|) (= .cse2 |ULTIMATE.start_main_~p~0#1|)))) .cse3 (<= 0 |ULTIMATE.start_main_~A~0#1|)) (let ((.cse5 (select |#memory_int| 1)) (.cse4 (select |#memory_int| 2))) (and (= (select .cse4 7) 0) (= (select |#length| 3) 12) .cse0 (= 114 (select .cse4 2)) (= (select .cse4 6) 99) (= 97 (select .cse4 1)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~p~0#1|) (= (select .cse4 4) 50) (= 100 (select .cse4 3)) .cse1 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) (= (select |#valid| 0) 0) (= (select .cse4 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= (select .cse5 0) 48) .cse3 (= (select .cse5 1) 0) (= 2 |ULTIMATE.start_main_~d~0#1|) (= (select .cse4 0) 104))))) [2023-11-23 21:29:42,422 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 44 56) no Hoare annotation was computed. [2023-11-23 21:29:42,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,423 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:29:42,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-23 21:29:42,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:29:42,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-23 21:29:42,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:29:42,425 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-23 21:29:42,425 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-23 21:29:42,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 21:29:42,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-23 21:29:42,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 21:29:42,426 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-23 21:29:42,426 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-23 21:29:42,426 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:29:42,426 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 21:29:42,426 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-23 21:29:42,426 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-23 21:29:42,426 INFO L899 garLoopResultBuilder]: For program point L58-2(line 58) no Hoare annotation was computed. [2023-11-23 21:29:42,427 INFO L902 garLoopResultBuilder]: At program point L58-3(line 58) the Hoare annotation is: true [2023-11-23 21:29:42,427 INFO L902 garLoopResultBuilder]: At program point L58-4(line 58) the Hoare annotation is: true [2023-11-23 21:29:42,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-23 21:29:42,427 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-23 21:29:42,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-23 21:29:42,427 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-23 21:29:42,428 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-23 21:29:42,428 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 42) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-23 21:29:42,428 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 21:29:42,428 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-23 21:29:42,428 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-23 21:29:42,429 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-23 21:29:42,429 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-23 21:29:42,429 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:29:42,429 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-23 21:29:42,430 INFO L895 garLoopResultBuilder]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-23 21:29:42,430 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-23 21:29:42,430 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-23 21:29:42,434 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:42,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:29:42,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_69 : int :: ((!(v_ULTIMATE.start_main_~p~0#1_69 == 1) && 1 <= v_ULTIMATE.start_main_~p~0#1_69) && v_ULTIMATE.start_main_~p~0#1_69 / 2 == ~d~0) && v_ULTIMATE.start_main_~p~0#1_69 <= 2) could not be translated [2023-11-23 21:29:42,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_71 : int :: (v_ULTIMATE.start_main_~p~0#1_71 <= 2 && v_ULTIMATE.start_main_~p~0#1_71 / 2 == ~d~0) && v_ULTIMATE.start_main_~p~0#1_71 / 2 == ~p~0) could not be translated [2023-11-23 21:29:42,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated [2023-11-23 21:29:42,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-23 21:29:42,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated [2023-11-23 21:29:42,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated [2023-11-23 21:29:42,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated [2023-11-23 21:29:42,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-23 21:29:42,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-23 21:29:42,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated [2023-11-23 21:29:42,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated [2023-11-23 21:29:42,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-23 21:29:42,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-23 21:29:42,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated [2023-11-23 21:29:42,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-23 21:29:42,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-23 21:29:42,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-23 21:29:42,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-23 21:29:42,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated [2023-11-23 21:29:42,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated [2023-11-23 21:29:42,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-23 21:29:42,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated [2023-11-23 21:29:42,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated [2023-11-23 21:29:42,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated [2023-11-23 21:29:42,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-23 21:29:42,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-23 21:29:42,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated [2023-11-23 21:29:42,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated [2023-11-23 21:29:42,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-23 21:29:42,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-23 21:29:42,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated [2023-11-23 21:29:42,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-23 21:29:42,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-23 21:29:42,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-23 21:29:42,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-23 21:29:42,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated [2023-11-23 21:29:42,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated [2023-11-23 21:29:42,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-23 21:29:42,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated [2023-11-23 21:29:42,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated [2023-11-23 21:29:42,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated [2023-11-23 21:29:42,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-23 21:29:42,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-23 21:29:42,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated [2023-11-23 21:29:42,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated [2023-11-23 21:29:42,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-23 21:29:42,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-23 21:29:42,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated [2023-11-23 21:29:42,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-23 21:29:42,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-23 21:29:42,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-23 21:29:42,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-23 21:29:42,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated [2023-11-23 21:29:42,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:29:42 BoogieIcfgContainer [2023-11-23 21:29:42,489 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:29:42,489 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:29:42,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:29:42,490 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:29:42,490 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:57" (3/4) ... [2023-11-23 21:29:42,492 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:29:42,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 21:29:42,506 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-23 21:29:42,507 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 21:29:42,507 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 21:29:42,508 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:29:42,508 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:29:42,630 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:29:42,631 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:29:42,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:29:42,633 INFO L158 Benchmark]: Toolchain (without parser) took 45887.25ms. Allocated memory was 130.0MB in the beginning and 507.5MB in the end (delta: 377.5MB). Free memory was 98.2MB in the beginning and 297.8MB in the end (delta: -199.6MB). Peak memory consumption was 180.0MB. Max. memory is 16.1GB. [2023-11-23 21:29:42,633 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:42,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.29ms. Allocated memory is still 130.0MB. Free memory was 98.2MB in the beginning and 87.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:29:42,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.12ms. Allocated memory is still 130.0MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:42,635 INFO L158 Benchmark]: Boogie Preprocessor took 36.39ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 84.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:42,635 INFO L158 Benchmark]: RCFGBuilder took 547.60ms. Allocated memory is still 130.0MB. Free memory was 84.0MB in the beginning and 66.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 21:29:42,635 INFO L158 Benchmark]: TraceAbstraction took 44810.27ms. Allocated memory was 130.0MB in the beginning and 507.5MB in the end (delta: 377.5MB). Free memory was 66.3MB in the beginning and 303.0MB in the end (delta: -236.7MB). Peak memory consumption was 276.8MB. Max. memory is 16.1GB. [2023-11-23 21:29:42,636 INFO L158 Benchmark]: Witness Printer took 142.11ms. Allocated memory is still 507.5MB. Free memory was 303.0MB in the beginning and 297.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:29:42,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.29ms. Allocated memory is still 130.0MB. Free memory was 98.2MB in the beginning and 87.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.12ms. Allocated memory is still 130.0MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.39ms. Allocated memory is still 130.0MB. Free memory was 85.2MB in the beginning and 84.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.60ms. Allocated memory is still 130.0MB. Free memory was 84.0MB in the beginning and 66.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 44810.27ms. Allocated memory was 130.0MB in the beginning and 507.5MB in the end (delta: 377.5MB). Free memory was 66.3MB in the beginning and 303.0MB in the end (delta: -236.7MB). Peak memory consumption was 276.8MB. Max. memory is 16.1GB. * Witness Printer took 142.11ms. Allocated memory is still 507.5MB. Free memory was 303.0MB in the beginning and 297.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_69 : int :: ((!(v_ULTIMATE.start_main_~p~0#1_69 == 1) && 1 <= v_ULTIMATE.start_main_~p~0#1_69) && v_ULTIMATE.start_main_~p~0#1_69 / 2 == ~d~0) && v_ULTIMATE.start_main_~p~0#1_69 <= 2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_71 : int :: (v_ULTIMATE.start_main_~p~0#1_71 <= 2 && v_ULTIMATE.start_main_~p~0#1_71 / 2 == ~d~0) && v_ULTIMATE.start_main_~p~0#1_71 / 2 == ~p~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 44.7s, OverallIterations: 14, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 749 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 701 mSDsluCounter, 1078 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 497 mSDsCounter, 193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2007 IncrementalHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 193 mSolverCounterUnsat, 581 mSDtfsCounter, 2007 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 717 GetRequests, 574 SyntacticMatches, 24 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1380 ImplicationChecksByTransitivity, 17.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=4, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 148 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 44 PreInvPairs, 66 NumberOfFragments, 1629 HoareAnnotationTreeSize, 44 FomulaSimplifications, 13518 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 10 FomulaSimplificationsInter, 2732 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 2013 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1500 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 15 InterpolantComputations, 10 PerfectInterpolantSequences, 440/466 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 11.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 186, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 220, TOOLS_POST_TIME: 3.2s, TOOLS_POST_CALL_APPLICATIONS: 122, TOOLS_POST_CALL_TIME: 3.2s, TOOLS_POST_RETURN_APPLICATIONS: 104, TOOLS_POST_RETURN_TIME: 2.4s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 446, TOOLS_QUANTIFIERELIM_TIME: 8.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 494, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 158, DOMAIN_JOIN_TIME: 2.1s, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 8, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 186, DOMAIN_ISBOTTOM_TIME: 0.3s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 4.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 4.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 8, CALL_SUMMARIZER_APPLICATIONS: 104, CALL_SUMMARIZER_CACHE_MISSES: 4, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 8237, DAG_COMPRESSION_RETAINED_NODES: 460, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((((A <= 1) && (((((d + r) == A) && (p == q)) && (d <= A)) || (((0 <= r) && (q == 0)) && ((r + 1) <= d)))) && (B == 1)) && (0 <= A)) || ((((((2 == p) && (q == 0)) && (A == 1)) && (r == 1)) && (B == 1)) && (2 == d))) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((2 == p) && (q == 0)) && (A == 1)) && (r == 1)) && (B == 1)) && (2 == d)) || (((((((d == 1) && (p == 1)) && (A <= 1)) && (q == 0)) && (A == r)) && (B == 1)) && (0 <= A))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:29:42,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10cdd1e5-b6af-46c2-8d3d-cd48b0721ef5/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE