./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:23:56,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:56,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:56,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:56,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:56,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:56,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:56,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:56,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:56,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:56,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:56,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:56,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:56,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:56,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:56,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:56,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:56,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:56,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:56,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:56,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:56,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:56,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:56,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:56,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:56,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:56,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:56,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:56,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:56,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:56,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:56,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:56,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:56,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:56,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:56,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:56,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:56,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:56,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:56,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:56,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:56,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:23:56,376 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:56,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:56,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:56,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:56,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:56,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:56,379 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:56,379 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:56,380 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:56,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:23:56,381 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:56,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:56,381 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:23:56,382 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:23:56,382 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:56,382 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:23:56,382 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:23:56,383 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:23:56,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:56,384 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:23:56,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:23:56,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:23:56,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:23:56,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:56,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:56,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:56,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:56,385 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:23:56,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:23:56,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:56,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:56,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:56,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:56,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:56,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:56,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:56,389 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:23:56,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:56,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:56,390 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:23:56,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:23:56,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:56,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:56,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-22 01:23:56,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:56,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:56,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:56,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:56,710 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:56,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-22 01:23:59,743 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:59,930 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:59,931 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-22 01:23:59,938 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/data/36e4d8cda/662172faae8741799716a799f7c1060b/FLAG3148cb29c [2022-11-22 01:23:59,955 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/data/36e4d8cda/662172faae8741799716a799f7c1060b [2022-11-22 01:23:59,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:59,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:59,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:59,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:59,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:59,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:59" (1/1) ... [2022-11-22 01:23:59,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68409de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:59, skipping insertion in model container [2022-11-22 01:23:59,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:59" (1/1) ... [2022-11-22 01:23:59,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:24:00,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:24:00,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-22 01:24:00,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:00,313 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:24:00,342 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-22 01:24:00,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:00,363 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:24:00,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00 WrapperNode [2022-11-22 01:24:00,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:24:00,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:00,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:24:00,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:24:00,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,418 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 418 [2022-11-22 01:24:00,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:00,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:24:00,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:24:00,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:24:00,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,467 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:24:00,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:24:00,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:24:00,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:24:00,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (1/1) ... [2022-11-22 01:24:00,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:24:00,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:24:00,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:24:00,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:24:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:24:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:24:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:24:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:24:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:24:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:24:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-22 01:24:00,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-22 01:24:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-22 01:24:00,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-22 01:24:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-22 01:24:00,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-22 01:24:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:24:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 01:24:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 01:24:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:24:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:24:00,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:24:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:24:00,562 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:24:00,725 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:24:00,727 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:24:01,587 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:24:02,040 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:24:02,040 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-22 01:24:02,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:24:02 BoogieIcfgContainer [2022-11-22 01:24:02,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:24:02,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:24:02,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:24:02,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:24:02,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:23:59" (1/3) ... [2022-11-22 01:24:02,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a7e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:24:02, skipping insertion in model container [2022-11-22 01:24:02,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:00" (2/3) ... [2022-11-22 01:24:02,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a7e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:24:02, skipping insertion in model container [2022-11-22 01:24:02,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:24:02" (3/3) ... [2022-11-22 01:24:02,059 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-11-22 01:24:02,072 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 01:24:02,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:24:02,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-22 01:24:02,084 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:24:02,310 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-22 01:24:02,358 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:24:02,371 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 397 transitions, 818 flow [2022-11-22 01:24:02,374 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 397 transitions, 818 flow [2022-11-22 01:24:02,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 372 places, 397 transitions, 818 flow [2022-11-22 01:24:02,517 INFO L130 PetriNetUnfolder]: 35/394 cut-off events. [2022-11-22 01:24:02,517 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-22 01:24:02,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 394 events. 35/394 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 894 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 316. Up to 2 conditions per place. [2022-11-22 01:24:02,536 INFO L119 LiptonReduction]: Number of co-enabled transitions 19278 [2022-11-22 01:24:54,482 INFO L134 LiptonReduction]: Checked pairs total: 24358 [2022-11-22 01:24:54,482 INFO L136 LiptonReduction]: Total number of compositions: 486 [2022-11-22 01:24:54,492 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 75 transitions, 174 flow [2022-11-22 01:24:54,760 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5790 states, 5054 states have (on average 4.058963197467353) internal successors, (20514), 5789 states have internal predecessors, (20514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:54,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:24:54,798 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50c63560, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:24:54,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2022-11-22 01:24:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 5790 states, 5054 states have (on average 4.058963197467353) internal successors, (20514), 5789 states have internal predecessors, (20514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:54,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 01:24:54,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:54,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 01:24:54,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:24:54,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash 64977, now seen corresponding path program 1 times [2022-11-22 01:24:54,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:54,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914536110] [2022-11-22 01:24:54,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:54,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:55,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:55,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914536110] [2022-11-22 01:24:55,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914536110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:55,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:55,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:24:55,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37961274] [2022-11-22 01:24:55,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:55,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:55,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:24:55,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:55,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:55,261 INFO L87 Difference]: Start difference. First operand has 5790 states, 5054 states have (on average 4.058963197467353) internal successors, (20514), 5789 states have internal predecessors, (20514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:55,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:55,717 INFO L93 Difference]: Finished difference Result 7325 states and 24897 transitions. [2022-11-22 01:24:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:55,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-22 01:24:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:55,788 INFO L225 Difference]: With dead ends: 7325 [2022-11-22 01:24:55,788 INFO L226 Difference]: Without dead ends: 7325 [2022-11-22 01:24:55,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:55,792 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 50 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:55,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 6 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:24:55,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2022-11-22 01:24:56,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 3669. [2022-11-22 01:24:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 3319 states have (on average 3.7541428141006326) internal successors, (12460), 3668 states have internal predecessors, (12460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 12460 transitions. [2022-11-22 01:24:56,058 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 12460 transitions. Word has length 2 [2022-11-22 01:24:56,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:56,058 INFO L495 AbstractCegarLoop]: Abstraction has 3669 states and 12460 transitions. [2022-11-22 01:24:56,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 12460 transitions. [2022-11-22 01:24:56,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:24:56,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:56,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:24:56,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:24:56,060 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:24:56,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:56,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2017388, now seen corresponding path program 1 times [2022-11-22 01:24:56,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:56,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522470563] [2022-11-22 01:24:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:56,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:56,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:56,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:56,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522470563] [2022-11-22 01:24:56,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522470563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:56,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:56,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:24:56,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338477218] [2022-11-22 01:24:56,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:56,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:24:56,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:56,137 INFO L87 Difference]: Start difference. First operand 3669 states and 12460 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:56,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:56,300 INFO L93 Difference]: Finished difference Result 3666 states and 12457 transitions. [2022-11-22 01:24:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:56,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-22 01:24:56,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:56,387 INFO L225 Difference]: With dead ends: 3666 [2022-11-22 01:24:56,387 INFO L226 Difference]: Without dead ends: 3666 [2022-11-22 01:24:56,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:56,390 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:56,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:24:56,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2022-11-22 01:24:56,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3666. [2022-11-22 01:24:56,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3319 states have (on average 3.7532389273877675) internal successors, (12457), 3665 states have internal predecessors, (12457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:56,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 12457 transitions. [2022-11-22 01:24:56,529 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 12457 transitions. Word has length 3 [2022-11-22 01:24:56,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:56,529 INFO L495 AbstractCegarLoop]: Abstraction has 3666 states and 12457 transitions. [2022-11-22 01:24:56,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:56,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 12457 transitions. [2022-11-22 01:24:56,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:24:56,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:56,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:24:56,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:24:56,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:24:56,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:56,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2017389, now seen corresponding path program 1 times [2022-11-22 01:24:56,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:56,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456537322] [2022-11-22 01:24:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:56,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:56,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:56,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:56,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456537322] [2022-11-22 01:24:56,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456537322] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:24:56,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899450585] [2022-11-22 01:24:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:56,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:24:56,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:24:56,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:24:56,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:24:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:56,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:24:56,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:56,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:56,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:24:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:56,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899450585] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:24:56,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2050243565] [2022-11-22 01:24:56,924 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:24:56,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:24:56,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-22 01:24:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417686981] [2022-11-22 01:24:56,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:24:56,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:24:56,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:24:56,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:24:56,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:24:56,929 INFO L87 Difference]: Start difference. First operand 3666 states and 12457 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:57,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:57,672 INFO L93 Difference]: Finished difference Result 18299 states and 62229 transitions. [2022-11-22 01:24:57,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:24:57,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 3 [2022-11-22 01:24:57,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:57,789 INFO L225 Difference]: With dead ends: 18299 [2022-11-22 01:24:57,789 INFO L226 Difference]: Without dead ends: 18299 [2022-11-22 01:24:57,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:24:57,790 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 300 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:57,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 15 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:24:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18299 states. [2022-11-22 01:24:58,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18299 to 3675. [2022-11-22 01:24:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3675 states, 3328 states have (on average 3.750300480769231) internal successors, (12481), 3674 states have internal predecessors, (12481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3675 states to 3675 states and 12481 transitions. [2022-11-22 01:24:58,204 INFO L78 Accepts]: Start accepts. Automaton has 3675 states and 12481 transitions. Word has length 3 [2022-11-22 01:24:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:58,205 INFO L495 AbstractCegarLoop]: Abstraction has 3675 states and 12481 transitions. [2022-11-22 01:24:58,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:58,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3675 states and 12481 transitions. [2022-11-22 01:24:58,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:24:58,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:58,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:24:58,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:24:58,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:24:58,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:24:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:58,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1941352179, now seen corresponding path program 1 times [2022-11-22 01:24:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:58,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714710028] [2022-11-22 01:24:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:58,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:58,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714710028] [2022-11-22 01:24:58,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714710028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:58,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:58,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:24:58,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454935935] [2022-11-22 01:24:58,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:58,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:58,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:24:58,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:58,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:58,524 INFO L87 Difference]: Start difference. First operand 3675 states and 12481 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:58,887 INFO L93 Difference]: Finished difference Result 7335 states and 24929 transitions. [2022-11-22 01:24:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:58,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-22 01:24:58,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:58,949 INFO L225 Difference]: With dead ends: 7335 [2022-11-22 01:24:58,949 INFO L226 Difference]: Without dead ends: 7335 [2022-11-22 01:24:58,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:58,950 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 48 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:58,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:24:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7335 states. [2022-11-22 01:24:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7335 to 3681. [2022-11-22 01:24:59,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3334 states have (on average 3.7474505098980204) internal successors, (12494), 3680 states have internal predecessors, (12494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 12494 transitions. [2022-11-22 01:24:59,142 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 12494 transitions. Word has length 5 [2022-11-22 01:24:59,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:59,143 INFO L495 AbstractCegarLoop]: Abstraction has 3681 states and 12494 transitions. [2022-11-22 01:24:59,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 12494 transitions. [2022-11-22 01:24:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:24:59,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:59,145 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-11-22 01:24:59,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:24:59,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:24:59,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash -26456942, now seen corresponding path program 2 times [2022-11-22 01:24:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:59,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624816945] [2022-11-22 01:24:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:59,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:24:59,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:59,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624816945] [2022-11-22 01:24:59,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624816945] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:24:59,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40846250] [2022-11-22 01:24:59,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:24:59,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:24:59,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:24:59,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:24:59,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:24:59,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:24:59,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:24:59,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:24:59,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:24:59,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:59,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40846250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:59,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:24:59,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-22 01:24:59,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319704500] [2022-11-22 01:24:59,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:59,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:59,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:24:59,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:59,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:24:59,673 INFO L87 Difference]: Start difference. First operand 3681 states and 12494 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:59,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:59,838 INFO L93 Difference]: Finished difference Result 3680 states and 12493 transitions. [2022-11-22 01:24:59,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:59,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:24:59,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:59,858 INFO L225 Difference]: With dead ends: 3680 [2022-11-22 01:24:59,858 INFO L226 Difference]: Without dead ends: 3680 [2022-11-22 01:24:59,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:24:59,859 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:59,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:24:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3680 states. [2022-11-22 01:24:59,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3680 to 3676. [2022-11-22 01:24:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3330 states have (on average 3.749249249249249) internal successors, (12485), 3675 states have internal predecessors, (12485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:59,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12485 transitions. [2022-11-22 01:24:59,975 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12485 transitions. Word has length 6 [2022-11-22 01:24:59,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:59,975 INFO L495 AbstractCegarLoop]: Abstraction has 3676 states and 12485 transitions. [2022-11-22 01:24:59,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:24:59,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12485 transitions. [2022-11-22 01:24:59,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:24:59,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:59,976 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-22 01:24:59,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:00,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:00,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:00,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:00,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1623700542, now seen corresponding path program 1 times [2022-11-22 01:25:00,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:00,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016492735] [2022-11-22 01:25:00,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:00,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:00,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:00,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016492735] [2022-11-22 01:25:00,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016492735] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:00,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705758899] [2022-11-22 01:25:00,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:00,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:00,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:00,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:00,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:25:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:00,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:00,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:00,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:25:00,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705758899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:00,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:00,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-22 01:25:00,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939532707] [2022-11-22 01:25:00,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:00,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:00,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:00,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:00,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:00,672 INFO L87 Difference]: Start difference. First operand 3676 states and 12485 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:00,985 INFO L93 Difference]: Finished difference Result 7329 states and 24915 transitions. [2022-11-22 01:25:00,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:25:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:25:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:01,020 INFO L225 Difference]: With dead ends: 7329 [2022-11-22 01:25:01,020 INFO L226 Difference]: Without dead ends: 7329 [2022-11-22 01:25:01,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:01,021 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 97 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:01,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 9 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:25:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-11-22 01:25:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 3675. [2022-11-22 01:25:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3675 states, 3330 states have (on average 3.7477477477477477) internal successors, (12480), 3674 states have internal predecessors, (12480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3675 states to 3675 states and 12480 transitions. [2022-11-22 01:25:01,209 INFO L78 Accepts]: Start accepts. Automaton has 3675 states and 12480 transitions. Word has length 7 [2022-11-22 01:25:01,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:01,209 INFO L495 AbstractCegarLoop]: Abstraction has 3675 states and 12480 transitions. [2022-11-22 01:25:01,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:01,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3675 states and 12480 transitions. [2022-11-22 01:25:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:25:01,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:01,211 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-22 01:25:01,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:01,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:01,418 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:01,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:01,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1623700543, now seen corresponding path program 1 times [2022-11-22 01:25:01,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:01,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015614643] [2022-11-22 01:25:01,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:01,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:01,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:01,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015614643] [2022-11-22 01:25:01,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015614643] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:01,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190496936] [2022-11-22 01:25:01,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:01,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:01,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:01,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:01,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:25:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:01,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:01,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:01,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:01,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190496936] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:25:01,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878348930] [2022-11-22 01:25:01,933 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:25:01,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:25:01,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 01:25:01,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074596363] [2022-11-22 01:25:01,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:25:01,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:25:01,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:01,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:25:01,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:01,988 INFO L87 Difference]: Start difference. First operand 3675 states and 12480 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:02,712 INFO L93 Difference]: Finished difference Result 18309 states and 62259 transitions. [2022-11-22 01:25:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:25:02,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:25:02,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:02,794 INFO L225 Difference]: With dead ends: 18309 [2022-11-22 01:25:02,794 INFO L226 Difference]: Without dead ends: 18309 [2022-11-22 01:25:02,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:02,795 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 240 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:02,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 18 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:25:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18309 states. [2022-11-22 01:25:03,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18309 to 3693. [2022-11-22 01:25:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3348 states have (on average 3.739247311827957) internal successors, (12519), 3692 states have internal predecessors, (12519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 12519 transitions. [2022-11-22 01:25:03,161 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 12519 transitions. Word has length 7 [2022-11-22 01:25:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:03,162 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 12519 transitions. [2022-11-22 01:25:03,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 12519 transitions. [2022-11-22 01:25:03,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:25:03,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:03,163 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1] [2022-11-22 01:25:03,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:03,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:03,370 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1599955361, now seen corresponding path program 1 times [2022-11-22 01:25:03,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:03,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410418617] [2022-11-22 01:25:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:03,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:25:03,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:03,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410418617] [2022-11-22 01:25:03,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410418617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:03,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:03,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:03,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717614396] [2022-11-22 01:25:03,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:03,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:03,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:03,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:03,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:03,497 INFO L87 Difference]: Start difference. First operand 3693 states and 12519 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:03,719 INFO L93 Difference]: Finished difference Result 3706 states and 12538 transitions. [2022-11-22 01:25:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:25:03,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:25:03,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:03,735 INFO L225 Difference]: With dead ends: 3706 [2022-11-22 01:25:03,735 INFO L226 Difference]: Without dead ends: 3706 [2022-11-22 01:25:03,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:03,737 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:03,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2022-11-22 01:25:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3705. [2022-11-22 01:25:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3705 states, 3360 states have (on average 3.731547619047619) internal successors, (12538), 3704 states have internal predecessors, (12538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 12538 transitions. [2022-11-22 01:25:03,898 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 12538 transitions. Word has length 7 [2022-11-22 01:25:03,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:03,899 INFO L495 AbstractCegarLoop]: Abstraction has 3705 states and 12538 transitions. [2022-11-22 01:25:03,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 12538 transitions. [2022-11-22 01:25:03,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:25:03,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:03,900 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-11-22 01:25:03,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:25:03,901 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1530069018, now seen corresponding path program 1 times [2022-11-22 01:25:03,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:03,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853881926] [2022-11-22 01:25:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:03,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:25:04,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:04,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853881926] [2022-11-22 01:25:04,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853881926] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:04,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128302750] [2022-11-22 01:25:04,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:04,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:04,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:04,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:04,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:25:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:04,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:25:04,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:25:04,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:25:04,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128302750] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:25:04,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2040483776] [2022-11-22 01:25:04,506 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:25:04,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:25:04,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 13 [2022-11-22 01:25:04,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059209267] [2022-11-22 01:25:04,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:25:04,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:25:04,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:04,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:25:04,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:25:04,509 INFO L87 Difference]: Start difference. First operand 3705 states and 12538 transitions. Second operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:05,662 INFO L93 Difference]: Finished difference Result 17260 states and 58557 transitions. [2022-11-22 01:25:05,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:25:05,663 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 01:25:05,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:05,739 INFO L225 Difference]: With dead ends: 17260 [2022-11-22 01:25:05,739 INFO L226 Difference]: Without dead ends: 17260 [2022-11-22 01:25:05,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:25:05,740 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 862 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:05,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 42 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:25:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17260 states. [2022-11-22 01:25:06,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17260 to 4820. [2022-11-22 01:25:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 4475 states have (on average 4.103240223463687) internal successors, (18362), 4819 states have internal predecessors, (18362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 18362 transitions. [2022-11-22 01:25:06,067 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 18362 transitions. Word has length 8 [2022-11-22 01:25:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:06,068 INFO L495 AbstractCegarLoop]: Abstraction has 4820 states and 18362 transitions. [2022-11-22 01:25:06,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 18362 transitions. [2022-11-22 01:25:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:25:06,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:06,069 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1] [2022-11-22 01:25:06,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:06,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 01:25:06,281 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:06,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:06,281 INFO L85 PathProgramCache]: Analyzing trace with hash 223423041, now seen corresponding path program 2 times [2022-11-22 01:25:06,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:06,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120027644] [2022-11-22 01:25:06,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:25:06,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:06,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120027644] [2022-11-22 01:25:06,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120027644] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:06,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351841829] [2022-11-22 01:25:06,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:25:06,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:06,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:06,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:06,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:25:06,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:25:06,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:25:06,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:25:06,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 01:25:06,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:25:06,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351841829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:06,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:06,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2022-11-22 01:25:06,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344061460] [2022-11-22 01:25:06,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:06,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:06,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:06,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:06,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:25:06,830 INFO L87 Difference]: Start difference. First operand 4820 states and 18362 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:07,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:07,073 INFO L93 Difference]: Finished difference Result 8837 states and 34053 transitions. [2022-11-22 01:25:07,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:25:07,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 9 [2022-11-22 01:25:07,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:07,106 INFO L225 Difference]: With dead ends: 8837 [2022-11-22 01:25:07,106 INFO L226 Difference]: Without dead ends: 8837 [2022-11-22 01:25:07,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:07,107 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 146 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:07,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 6 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:07,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8837 states. [2022-11-22 01:25:07,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8837 to 3338. [2022-11-22 01:25:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 3043 states have (on average 3.7039106145251397) internal successors, (11271), 3337 states have internal predecessors, (11271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 11271 transitions. [2022-11-22 01:25:07,264 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 11271 transitions. Word has length 9 [2022-11-22 01:25:07,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:07,265 INFO L495 AbstractCegarLoop]: Abstraction has 3338 states and 11271 transitions. [2022-11-22 01:25:07,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:07,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 11271 transitions. [2022-11-22 01:25:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:25:07,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:07,266 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-22 01:25:07,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-22 01:25:07,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:07,473 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:07,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:07,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1283442989, now seen corresponding path program 1 times [2022-11-22 01:25:07,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:07,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364139266] [2022-11-22 01:25:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:07,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:07,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:07,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364139266] [2022-11-22 01:25:07,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364139266] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:07,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735996822] [2022-11-22 01:25:07,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:07,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:07,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:07,665 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:07,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:25:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:07,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:25:07,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:07,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:08,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:08,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735996822] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:25:08,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1710048582] [2022-11-22 01:25:08,051 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:25:08,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:25:08,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-22 01:25:08,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364768070] [2022-11-22 01:25:08,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:25:08,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:25:08,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:08,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:25:08,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:25:08,055 INFO L87 Difference]: Start difference. First operand 3338 states and 11271 transitions. Second operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:09,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:09,638 INFO L93 Difference]: Finished difference Result 36314 states and 123169 transitions. [2022-11-22 01:25:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:25:09,638 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:25:09,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:09,771 INFO L225 Difference]: With dead ends: 36314 [2022-11-22 01:25:09,771 INFO L226 Difference]: Without dead ends: 36314 [2022-11-22 01:25:09,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:25:09,772 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 771 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:09,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 39 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:25:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36314 states. [2022-11-22 01:25:10,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36314 to 3368. [2022-11-22 01:25:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3368 states, 3073 states have (on average 3.689228766677514) internal successors, (11337), 3367 states have internal predecessors, (11337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 11337 transitions. [2022-11-22 01:25:10,159 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 11337 transitions. Word has length 9 [2022-11-22 01:25:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:10,159 INFO L495 AbstractCegarLoop]: Abstraction has 3368 states and 11337 transitions. [2022-11-22 01:25:10,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 11337 transitions. [2022-11-22 01:25:10,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:25:10,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:10,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:10,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:10,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:10,375 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:10,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash -994731279, now seen corresponding path program 1 times [2022-11-22 01:25:10,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:10,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221720612] [2022-11-22 01:25:10,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:10,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:10,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221720612] [2022-11-22 01:25:10,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221720612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:10,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:10,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:10,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969775906] [2022-11-22 01:25:10,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:10,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:10,472 INFO L87 Difference]: Start difference. First operand 3368 states and 11337 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:10,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:10,712 INFO L93 Difference]: Finished difference Result 4826 states and 15816 transitions. [2022-11-22 01:25:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:25:10,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-11-22 01:25:10,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:10,741 INFO L225 Difference]: With dead ends: 4826 [2022-11-22 01:25:10,741 INFO L226 Difference]: Without dead ends: 4812 [2022-11-22 01:25:10,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:10,742 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 77 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:10,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 9 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:10,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-11-22 01:25:10,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4451. [2022-11-22 01:25:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4451 states, 4156 states have (on average 3.5837343599615012) internal successors, (14894), 4450 states have internal predecessors, (14894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4451 states to 4451 states and 14894 transitions. [2022-11-22 01:25:10,907 INFO L78 Accepts]: Start accepts. Automaton has 4451 states and 14894 transitions. Word has length 13 [2022-11-22 01:25:10,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:10,909 INFO L495 AbstractCegarLoop]: Abstraction has 4451 states and 14894 transitions. [2022-11-22 01:25:10,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4451 states and 14894 transitions. [2022-11-22 01:25:10,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:25:10,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:10,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:10,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:25:10,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:10,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:10,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1110827033, now seen corresponding path program 1 times [2022-11-22 01:25:10,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:10,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022622089] [2022-11-22 01:25:10,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:10,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:11,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:11,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:11,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022622089] [2022-11-22 01:25:11,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022622089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:11,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:11,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:25:11,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959935969] [2022-11-22 01:25:11,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:11,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:25:11,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:11,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:25:11,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:11,286 INFO L87 Difference]: Start difference. First operand 4451 states and 14894 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:11,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:11,846 INFO L93 Difference]: Finished difference Result 5330 states and 17192 transitions. [2022-11-22 01:25:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:25:11,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2022-11-22 01:25:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:11,864 INFO L225 Difference]: With dead ends: 5330 [2022-11-22 01:25:11,864 INFO L226 Difference]: Without dead ends: 5277 [2022-11-22 01:25:11,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:25:11,865 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 170 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:11,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 36 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:25:11,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5277 states. [2022-11-22 01:25:11,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5277 to 4878. [2022-11-22 01:25:11,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4878 states, 4577 states have (on average 3.5409656980554947) internal successors, (16207), 4877 states have internal predecessors, (16207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:11,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4878 states to 4878 states and 16207 transitions. [2022-11-22 01:25:11,987 INFO L78 Accepts]: Start accepts. Automaton has 4878 states and 16207 transitions. Word has length 13 [2022-11-22 01:25:11,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:11,988 INFO L495 AbstractCegarLoop]: Abstraction has 4878 states and 16207 transitions. [2022-11-22 01:25:11,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:11,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4878 states and 16207 transitions. [2022-11-22 01:25:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:25:11,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:11,989 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1] [2022-11-22 01:25:11,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:25:11,990 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:11,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1346331744, now seen corresponding path program 2 times [2022-11-22 01:25:11,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:11,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563228915] [2022-11-22 01:25:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:11,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:12,145 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:12,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:12,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563228915] [2022-11-22 01:25:12,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563228915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:12,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522346381] [2022-11-22 01:25:12,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:25:12,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:12,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:12,148 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:12,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:25:12,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:25:12,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:25:12,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:25:12,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 01:25:12,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 01:25:12,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522346381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:25:12,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2131234380] [2022-11-22 01:25:12,507 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:25:12,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:25:12,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 8 [2022-11-22 01:25:12,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196550340] [2022-11-22 01:25:12,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:25:12,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:25:12,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:12,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:25:12,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:25:12,509 INFO L87 Difference]: Start difference. First operand 4878 states and 16207 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:13,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:13,373 INFO L93 Difference]: Finished difference Result 21537 states and 72394 transitions. [2022-11-22 01:25:13,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:25:13,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-22 01:25:13,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:13,492 INFO L225 Difference]: With dead ends: 21537 [2022-11-22 01:25:13,492 INFO L226 Difference]: Without dead ends: 21537 [2022-11-22 01:25:13,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:25:13,493 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 768 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:13,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 21 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:25:13,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21537 states. [2022-11-22 01:25:13,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21537 to 4822. [2022-11-22 01:25:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4522 states have (on average 3.5570544007076514) internal successors, (16085), 4821 states have internal predecessors, (16085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 16085 transitions. [2022-11-22 01:25:13,821 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 16085 transitions. Word has length 13 [2022-11-22 01:25:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:13,822 INFO L495 AbstractCegarLoop]: Abstraction has 4822 states and 16085 transitions. [2022-11-22 01:25:13,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:13,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 16085 transitions. [2022-11-22 01:25:13,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:25:13,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:13,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:13,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:14,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:14,029 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:14,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash -67768727, now seen corresponding path program 1 times [2022-11-22 01:25:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:14,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121861648] [2022-11-22 01:25:14,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:14,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:14,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:14,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121861648] [2022-11-22 01:25:14,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121861648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:14,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:14,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:25:14,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589091651] [2022-11-22 01:25:14,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:14,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:14,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:14,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:14,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:14,239 INFO L87 Difference]: Start difference. First operand 4822 states and 16085 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:14,468 INFO L93 Difference]: Finished difference Result 7905 states and 26932 transitions. [2022-11-22 01:25:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2022-11-22 01:25:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:14,507 INFO L225 Difference]: With dead ends: 7905 [2022-11-22 01:25:14,507 INFO L226 Difference]: Without dead ends: 7905 [2022-11-22 01:25:14,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:14,508 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:14,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7905 states. [2022-11-22 01:25:14,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7905 to 6366. [2022-11-22 01:25:14,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6366 states, 6066 states have (on average 3.762776129244972) internal successors, (22825), 6365 states have internal predecessors, (22825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:14,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6366 states to 6366 states and 22825 transitions. [2022-11-22 01:25:14,750 INFO L78 Accepts]: Start accepts. Automaton has 6366 states and 22825 transitions. Word has length 14 [2022-11-22 01:25:14,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:14,750 INFO L495 AbstractCegarLoop]: Abstraction has 6366 states and 22825 transitions. [2022-11-22 01:25:14,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:14,751 INFO L276 IsEmpty]: Start isEmpty. Operand 6366 states and 22825 transitions. [2022-11-22 01:25:14,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:25:14,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:14,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:14,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:25:14,757 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:14,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash -67768726, now seen corresponding path program 1 times [2022-11-22 01:25:14,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:14,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723931725] [2022-11-22 01:25:14,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:14,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:15,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:15,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723931725] [2022-11-22 01:25:15,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723931725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:15,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:15,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:25:15,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187192892] [2022-11-22 01:25:15,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:15,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:25:15,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:15,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:25:15,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:15,319 INFO L87 Difference]: Start difference. First operand 6366 states and 22825 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:16,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:16,050 INFO L93 Difference]: Finished difference Result 6290 states and 21709 transitions. [2022-11-22 01:25:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:25:16,050 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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 14 [2022-11-22 01:25:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:16,076 INFO L225 Difference]: With dead ends: 6290 [2022-11-22 01:25:16,076 INFO L226 Difference]: Without dead ends: 6274 [2022-11-22 01:25:16,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:25:16,077 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 264 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:16,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 47 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:25:16,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2022-11-22 01:25:16,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 5732. [2022-11-22 01:25:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5732 states, 5432 states have (on average 3.757179675994109) internal successors, (20409), 5731 states have internal predecessors, (20409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5732 states to 5732 states and 20409 transitions. [2022-11-22 01:25:16,230 INFO L78 Accepts]: Start accepts. Automaton has 5732 states and 20409 transitions. Word has length 14 [2022-11-22 01:25:16,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:16,234 INFO L495 AbstractCegarLoop]: Abstraction has 5732 states and 20409 transitions. [2022-11-22 01:25:16,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:16,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5732 states and 20409 transitions. [2022-11-22 01:25:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:25:16,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:16,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:16,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:25:16,237 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:16,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:16,237 INFO L85 PathProgramCache]: Analyzing trace with hash 184574958, now seen corresponding path program 1 times [2022-11-22 01:25:16,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:16,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561402580] [2022-11-22 01:25:16,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:16,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:16,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:16,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561402580] [2022-11-22 01:25:16,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561402580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:16,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:16,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:25:16,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272393815] [2022-11-22 01:25:16,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:16,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:16,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:16,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:16,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:16,512 INFO L87 Difference]: Start difference. First operand 5732 states and 20409 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:16,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:16,783 INFO L93 Difference]: Finished difference Result 5745 states and 20433 transitions. [2022-11-22 01:25:16,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:25:16,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-11-22 01:25:16,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:16,807 INFO L225 Difference]: With dead ends: 5745 [2022-11-22 01:25:16,808 INFO L226 Difference]: Without dead ends: 5745 [2022-11-22 01:25:16,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:16,809 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:16,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 11 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5745 states. [2022-11-22 01:25:17,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5745 to 5742. [2022-11-22 01:25:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5442 states have (on average 3.754134509371555) internal successors, (20430), 5741 states have internal predecessors, (20430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:17,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 20430 transitions. [2022-11-22 01:25:17,032 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 20430 transitions. Word has length 14 [2022-11-22 01:25:17,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:17,032 INFO L495 AbstractCegarLoop]: Abstraction has 5742 states and 20430 transitions. [2022-11-22 01:25:17,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 20430 transitions. [2022-11-22 01:25:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:25:17,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:17,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:17,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:25:17,034 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:17,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1305727492, now seen corresponding path program 1 times [2022-11-22 01:25:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:17,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754607248] [2022-11-22 01:25:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:17,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:17,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:17,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754607248] [2022-11-22 01:25:17,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754607248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:17,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:17,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:17,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718315815] [2022-11-22 01:25:17,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:17,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:17,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:17,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:17,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:17,179 INFO L87 Difference]: Start difference. First operand 5742 states and 20430 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:17,561 INFO L93 Difference]: Finished difference Result 9743 states and 33786 transitions. [2022-11-22 01:25:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:25:17,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-11-22 01:25:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:17,591 INFO L225 Difference]: With dead ends: 9743 [2022-11-22 01:25:17,591 INFO L226 Difference]: Without dead ends: 9715 [2022-11-22 01:25:17,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:17,591 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 116 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:17,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 15 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:25:17,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9715 states. [2022-11-22 01:25:17,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9715 to 6855. [2022-11-22 01:25:17,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6855 states, 6555 states have (on average 3.781540808543097) internal successors, (24788), 6854 states have internal predecessors, (24788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:17,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6855 states to 6855 states and 24788 transitions. [2022-11-22 01:25:17,765 INFO L78 Accepts]: Start accepts. Automaton has 6855 states and 24788 transitions. Word has length 15 [2022-11-22 01:25:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:17,766 INFO L495 AbstractCegarLoop]: Abstraction has 6855 states and 24788 transitions. [2022-11-22 01:25:17,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:17,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6855 states and 24788 transitions. [2022-11-22 01:25:17,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:25:17,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:17,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:17,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:25:17,768 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:17,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:17,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1421823245, now seen corresponding path program 1 times [2022-11-22 01:25:17,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:17,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521350005] [2022-11-22 01:25:17,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:17,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:18,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:18,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521350005] [2022-11-22 01:25:18,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521350005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:18,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:18,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:25:18,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415578309] [2022-11-22 01:25:18,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:18,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:18,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:18,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:25:18,027 INFO L87 Difference]: Start difference. First operand 6855 states and 24788 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:18,554 INFO L93 Difference]: Finished difference Result 9999 states and 34094 transitions. [2022-11-22 01:25:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:25:18,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2022-11-22 01:25:18,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:18,599 INFO L225 Difference]: With dead ends: 9999 [2022-11-22 01:25:18,599 INFO L226 Difference]: Without dead ends: 9873 [2022-11-22 01:25:18,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:25:18,600 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 150 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:18,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 23 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9873 states. [2022-11-22 01:25:18,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9873 to 6282. [2022-11-22 01:25:18,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6282 states, 5982 states have (on average 3.760448010698763) internal successors, (22495), 6281 states have internal predecessors, (22495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:18,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6282 states to 6282 states and 22495 transitions. [2022-11-22 01:25:18,819 INFO L78 Accepts]: Start accepts. Automaton has 6282 states and 22495 transitions. Word has length 15 [2022-11-22 01:25:18,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:18,819 INFO L495 AbstractCegarLoop]: Abstraction has 6282 states and 22495 transitions. [2022-11-22 01:25:18,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6282 states and 22495 transitions. [2022-11-22 01:25:18,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:25:18,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:18,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:18,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:25:18,822 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:18,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:18,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1703459882, now seen corresponding path program 1 times [2022-11-22 01:25:18,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:18,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759584068] [2022-11-22 01:25:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:18,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:18,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:18,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:18,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759584068] [2022-11-22 01:25:18,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759584068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:18,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:18,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:25:18,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155683237] [2022-11-22 01:25:18,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:18,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:18,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:18,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:18,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:18,905 INFO L87 Difference]: Start difference. First operand 6282 states and 22495 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:19,167 INFO L93 Difference]: Finished difference Result 11015 states and 39580 transitions. [2022-11-22 01:25:19,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:19,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-11-22 01:25:19,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:19,219 INFO L225 Difference]: With dead ends: 11015 [2022-11-22 01:25:19,219 INFO L226 Difference]: Without dead ends: 11015 [2022-11-22 01:25:19,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:19,220 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 33 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:19,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 7 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:25:19,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11015 states. [2022-11-22 01:25:19,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11015 to 8667. [2022-11-22 01:25:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8667 states, 8367 states have (on average 3.9977291741364884) internal successors, (33449), 8666 states have internal predecessors, (33449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8667 states to 8667 states and 33449 transitions. [2022-11-22 01:25:19,505 INFO L78 Accepts]: Start accepts. Automaton has 8667 states and 33449 transitions. Word has length 15 [2022-11-22 01:25:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:19,505 INFO L495 AbstractCegarLoop]: Abstraction has 8667 states and 33449 transitions. [2022-11-22 01:25:19,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 8667 states and 33449 transitions. [2022-11-22 01:25:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:25:19,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:19,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:19,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:25:19,508 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:19,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:19,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1703459820, now seen corresponding path program 1 times [2022-11-22 01:25:19,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:19,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704636168] [2022-11-22 01:25:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:19,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:19,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:19,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704636168] [2022-11-22 01:25:19,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704636168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:19,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:19,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:25:19,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122016886] [2022-11-22 01:25:19,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:19,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:25:19,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:19,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:25:19,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:19,838 INFO L87 Difference]: Start difference. First operand 8667 states and 33449 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:20,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:20,440 INFO L93 Difference]: Finished difference Result 10418 states and 38373 transitions. [2022-11-22 01:25:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:25:20,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 15 [2022-11-22 01:25:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:20,482 INFO L225 Difference]: With dead ends: 10418 [2022-11-22 01:25:20,482 INFO L226 Difference]: Without dead ends: 9884 [2022-11-22 01:25:20,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:25:20,483 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 159 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:20,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 33 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:25:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9884 states. [2022-11-22 01:25:20,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9884 to 9122. [2022-11-22 01:25:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9122 states, 8818 states have (on average 3.9679065547743253) internal successors, (34989), 9121 states have internal predecessors, (34989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9122 states to 9122 states and 34989 transitions. [2022-11-22 01:25:20,725 INFO L78 Accepts]: Start accepts. Automaton has 9122 states and 34989 transitions. Word has length 15 [2022-11-22 01:25:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:20,725 INFO L495 AbstractCegarLoop]: Abstraction has 9122 states and 34989 transitions. [2022-11-22 01:25:20,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:20,726 INFO L276 IsEmpty]: Start isEmpty. Operand 9122 states and 34989 transitions. [2022-11-22 01:25:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:25:20,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:20,727 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1] [2022-11-22 01:25:20,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 01:25:20,728 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:20,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1591679213, now seen corresponding path program 2 times [2022-11-22 01:25:20,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:20,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347763566] [2022-11-22 01:25:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:20,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:21,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:21,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347763566] [2022-11-22 01:25:21,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347763566] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:21,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886576313] [2022-11-22 01:25:21,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:25:21,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:21,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:21,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:21,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:25:21,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:25:21,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:25:21,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:25:21,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-22 01:25:21,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:25:21,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886576313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:21,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:21,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2022-11-22 01:25:21,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728398096] [2022-11-22 01:25:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:21,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:21,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:21,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:21,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:25:21,365 INFO L87 Difference]: Start difference. First operand 9122 states and 34989 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:21,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:21,580 INFO L93 Difference]: Finished difference Result 9524 states and 35802 transitions. [2022-11-22 01:25:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:25:21,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:25:21,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:21,612 INFO L225 Difference]: With dead ends: 9524 [2022-11-22 01:25:21,612 INFO L226 Difference]: Without dead ends: 9510 [2022-11-22 01:25:21,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:25:21,613 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:21,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 8 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:25:21,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9510 states. [2022-11-22 01:25:21,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9510 to 9089. [2022-11-22 01:25:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9089 states, 8786 states have (on average 3.974618711586615) internal successors, (34921), 9088 states have internal predecessors, (34921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9089 states to 9089 states and 34921 transitions. [2022-11-22 01:25:21,813 INFO L78 Accepts]: Start accepts. Automaton has 9089 states and 34921 transitions. Word has length 15 [2022-11-22 01:25:21,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:21,813 INFO L495 AbstractCegarLoop]: Abstraction has 9089 states and 34921 transitions. [2022-11-22 01:25:21,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:25:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 9089 states and 34921 transitions. [2022-11-22 01:25:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:25:21,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:21,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:21,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:22,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:22,016 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2022-11-22 01:25:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash -277867210, now seen corresponding path program 1 times [2022-11-22 01:25:22,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:22,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636438983] [2022-11-22 01:25:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:22,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:23,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:23,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636438983] [2022-11-22 01:25:23,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636438983] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:23,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687356390] [2022-11-22 01:25:23,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:23,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:25:23,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:25:23,656 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:25:23,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1802c6e-ad91-4f70-b6c8-d3cf46e87747/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:25:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:24,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-22 01:25:24,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:24,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:25:24,197 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:25:24,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 01:25:24,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:25:24,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:25:24,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:25:24,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:25:24,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:24,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 81 [2022-11-22 01:25:24,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:24,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-11-22 01:25:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:24,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-11-22 01:25:24,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:24,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-11-22 01:25:24,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:24,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-11-22 01:25:24,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:24,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-11-22 01:25:24,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:24,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-11-22 01:25:25,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:25,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-11-22 01:25:25,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:25:25,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-11-22 01:25:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:25:25,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:25,601 WARN L837 $PredicateComparison]: unable to prove that (forall ((~A~0.offset Int) (|thread3Thread1of1ForFork1_~i~2#1| Int) (v_ArrVal_1545 (Array Int Int)) (v_ArrVal_1544 (Array Int Int)) (v_ArrVal_1543 (Array Int Int)) (v_ArrVal_1542 (Array Int Int)) (v_ArrVal_1541 (Array Int Int)) (v_ArrVal_1540 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int) (~A~0.base Int)) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1541) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1544)) (.cse4 (* 4 |thread3Thread1of1ForFork1_~i~2#1|))) (let ((.cse0 (select (select .cse2 ~B~0.base) (+ ~B~0.offset .cse4))) (.cse1 (select (select .cse2 ~A~0.base) (+ ~A~0.offset .cse4)))) (or (not (< .cse0 c_~maxB~0)) (not (<= 0 .cse1)) (not (<= 0 .cse0)) (< 0 (+ (let ((.cse3 (+ c_~mult~0.offset (* .cse1 4)))) (select (select .cse2 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1542) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1545) c_~mult~0.base) .cse3)) (+ (* .cse0 4) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1540) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1543) c_~mult~0.base) .cse3)))) 9223372039002259456)) (not (< .cse1 c_~maxA~0)))))) is different from false [2022-11-22 01:25:25,891 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:25:25,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 144 [2022-11-22 01:25:25,909 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:25:25,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 132 [2022-11-22 01:25:25,939 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:25:25,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1894 treesize of output 1862 [2022-11-22 01:25:25,998 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:25:25,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53250 treesize of output 51482 [2022-11-22 01:25:26,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26554 treesize of output 24890 [2022-11-22 01:25:26,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49782 treesize of output 43126 [2022-11-22 01:25:26,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43126 treesize of output 39798 [2022-11-22 01:25:26,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39798 treesize of output 33142 [2022-11-22 01:25:27,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33142 treesize of output 31478 [2022-11-22 01:25:27,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31478 treesize of output 28150