./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/hard2-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-nla/hard2-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23ac641bc90237de255e915a5ed362430f6ac59f0f6642be7f9d8479ff0a7576 --- 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-38b53e6 [2022-11-25 16:52:22,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:52:22,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:52:23,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:52:23,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:52:23,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:52:23,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:52:23,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:52:23,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:52:23,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:52:23,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:52:23,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:52:23,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:52:23,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:52:23,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:52:23,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:52:23,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:52:23,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:52:23,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:52:23,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:52:23,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:52:23,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:52:23,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:52:23,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:52:23,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:52:23,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:52:23,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:52:23,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:52:23,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:52:23,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:52:23,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:52:23,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:52:23,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:52:23,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:52:23,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:52:23,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:52:23,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:52:23,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:52:23,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:52:23,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:52:23,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:52:23,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:52:23,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:52:23,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:52:23,185 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:52:23,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:52:23,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:52:23,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:52:23,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:52:23,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:52:23,189 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:52:23,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:52:23,191 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:52:23,192 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:52:23,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:52:23,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:52:23,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:52:23,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:52:23,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:52:23,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:52:23,194 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:52:23,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:52:23,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:52:23,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:52:23,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:52:23,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:52:23,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:52:23,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:52:23,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:52:23,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:52:23,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:52:23,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:52:23,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:52:23,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:52:23,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:52:23,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:52:23,202 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:52:23,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:52:23,202 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ac641bc90237de255e915a5ed362430f6ac59f0f6642be7f9d8479ff0a7576 [2022-11-25 16:52:23,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:52:23,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:52:23,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:52:23,641 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:52:23,641 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:52:23,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-nla/hard2-both-nt.c [2022-11-25 16:52:27,442 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:52:27,745 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:52:27,746 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/sv-benchmarks/c/termination-nla/hard2-both-nt.c [2022-11-25 16:52:27,754 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/data/1350d6634/5610e829e4654463802a6f198368ed77/FLAGab40ee79d [2022-11-25 16:52:27,784 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/data/1350d6634/5610e829e4654463802a6f198368ed77 [2022-11-25 16:52:27,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:52:27,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:52:27,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:52:27,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:52:27,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:52:27,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:52:27" (1/1) ... [2022-11-25 16:52:27,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe34ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:27, skipping insertion in model container [2022-11-25 16:52:27,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:52:27" (1/1) ... [2022-11-25 16:52:27,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:52:27,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:52:28,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:52:28,081 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:52:28,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:52:28,116 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:52:28,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28 WrapperNode [2022-11-25 16:52:28,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:52:28,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:52:28,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:52:28,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:52:28,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,155 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-11-25 16:52:28,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:52:28,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:52:28,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:52:28,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:52:28,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:52:28,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:52:28,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:52:28,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:52:28,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (1/1) ... [2022-11-25 16:52:28,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:52:28,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:28,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:52:28,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:52:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:52:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:52:28,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:52:28,362 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:52:28,698 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:52:28,707 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:52:28,707 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 16:52:28,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:52:28 BoogieIcfgContainer [2022-11-25 16:52:28,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:52:28,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:52:28,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:52:28,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:52:28,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:52:27" (1/3) ... [2022-11-25 16:52:28,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65feac74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:52:28, skipping insertion in model container [2022-11-25 16:52:28,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:28" (2/3) ... [2022-11-25 16:52:28,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65feac74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:52:28, skipping insertion in model container [2022-11-25 16:52:28,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:52:28" (3/3) ... [2022-11-25 16:52:28,733 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2-both-nt.c [2022-11-25 16:52:28,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:52:28,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 16:52:28,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:52:28,952 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5268a111, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:52:28,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-25 16:52:28,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 46 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 16:52:28,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:28,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 16:52:28,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:28,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-25 16:52:28,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:28,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458692024] [2022-11-25 16:52:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:28,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:29,124 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:29,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065053565] [2022-11-25 16:52:29,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:29,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:29,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:29,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:29,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:52:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:29,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:29,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:29,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:29,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:29,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458692024] [2022-11-25 16:52:29,355 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:29,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065053565] [2022-11-25 16:52:29,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065053565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:29,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:29,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:29,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569490246] [2022-11-25 16:52:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:29,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:29,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:29,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:29,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:29,439 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 46 states have internal predecessors, (53), 0 states have call successors, (0), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:29,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:29,577 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions. [2022-11-25 16:52:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:29,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 16:52:29,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:29,591 INFO L225 Difference]: With dead ends: 99 [2022-11-25 16:52:29,592 INFO L226 Difference]: Without dead ends: 58 [2022-11-25 16:52:29,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:29,603 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 31 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:29,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 41 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-25 16:52:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2022-11-25 16:52:29,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 49 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-25 16:52:29,663 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 4 [2022-11-25 16:52:29,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:29,664 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-25 16:52:29,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-25 16:52:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 16:52:29,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:29,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:52:29,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:29,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 16:52:29,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:29,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-25 16:52:29,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:29,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448904616] [2022-11-25 16:52:29,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:29,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:29,899 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:29,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235479024] [2022-11-25 16:52:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:29,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:29,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:29,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:29,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:52:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:29,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:29,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:30,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:30,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:30,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448904616] [2022-11-25 16:52:30,032 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:30,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235479024] [2022-11-25 16:52:30,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235479024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:30,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:30,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:30,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108120726] [2022-11-25 16:52:30,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:30,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:30,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:30,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:30,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:30,047 INFO L87 Difference]: Start difference. First operand 50 states and 58 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) [2022-11-25 16:52:30,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:30,215 INFO L93 Difference]: Finished difference Result 98 states and 114 transitions. [2022-11-25 16:52:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:30,216 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 [2022-11-25 16:52:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:30,217 INFO L225 Difference]: With dead ends: 98 [2022-11-25 16:52:30,218 INFO L226 Difference]: Without dead ends: 95 [2022-11-25 16:52:30,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:30,220 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 34 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:30,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 38 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:30,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-25 16:52:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2022-11-25 16:52:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.6818181818181819) internal successors, (111), 81 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2022-11-25 16:52:30,247 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 5 [2022-11-25 16:52:30,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:30,247 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2022-11-25 16:52:30,248 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) [2022-11-25 16:52:30,248 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2022-11-25 16:52:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 16:52:30,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:30,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:30,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:30,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:30,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:30,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629707, now seen corresponding path program 1 times [2022-11-25 16:52:30,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:30,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619583780] [2022-11-25 16:52:30,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:30,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:30,469 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:30,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48494701] [2022-11-25 16:52:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:30,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:30,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:30,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:30,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 16:52:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:30,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:52:30,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:30,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:30,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:30,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619583780] [2022-11-25 16:52:30,578 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:30,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48494701] [2022-11-25 16:52:30,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48494701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:30,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:30,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:30,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325582689] [2022-11-25 16:52:30,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:30,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:30,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:30,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:30,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:30,582 INFO L87 Difference]: Start difference. First operand 82 states and 111 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:30,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:30,625 INFO L93 Difference]: Finished difference Result 87 states and 111 transitions. [2022-11-25 16:52:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:30,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 16:52:30,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:30,628 INFO L225 Difference]: With dead ends: 87 [2022-11-25 16:52:30,631 INFO L226 Difference]: Without dead ends: 85 [2022-11-25 16:52:30,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:30,634 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 19 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:30,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 53 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:52:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-25 16:52:30,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2022-11-25 16:52:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 66 states have (on average 1.621212121212121) internal successors, (107), 80 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 107 transitions. [2022-11-25 16:52:30,650 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 107 transitions. Word has length 7 [2022-11-25 16:52:30,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:30,654 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 107 transitions. [2022-11-25 16:52:30,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 107 transitions. [2022-11-25 16:52:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 16:52:30,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:30,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:30,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:30,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:30,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:30,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash 294944745, now seen corresponding path program 1 times [2022-11-25 16:52:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:30,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975069819] [2022-11-25 16:52:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:30,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:30,863 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:30,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424868938] [2022-11-25 16:52:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:30,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:30,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:30,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:30,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 16:52:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:30,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:30,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:30,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:30,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:30,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975069819] [2022-11-25 16:52:30,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:30,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424868938] [2022-11-25 16:52:30,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424868938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:30,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:30,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197451223] [2022-11-25 16:52:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:30,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:30,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:30,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:30,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:30,993 INFO L87 Difference]: Start difference. First operand 81 states and 107 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-25 16:52:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:31,052 INFO L93 Difference]: Finished difference Result 123 states and 162 transitions. [2022-11-25 16:52:31,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:31,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 [2022-11-25 16:52:31,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:31,054 INFO L225 Difference]: With dead ends: 123 [2022-11-25 16:52:31,054 INFO L226 Difference]: Without dead ends: 122 [2022-11-25 16:52:31,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:31,056 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 33 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:31,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 41 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:52:31,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-25 16:52:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 103. [2022-11-25 16:52:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.6136363636363635) internal successors, (142), 102 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2022-11-25 16:52:31,070 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 8 [2022-11-25 16:52:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:31,071 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2022-11-25 16:52:31,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2022-11-25 16:52:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 16:52:31,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:31,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:31,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 16:52:31,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:31,278 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:31,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:31,279 INFO L85 PathProgramCache]: Analyzing trace with hash 294946123, now seen corresponding path program 1 times [2022-11-25 16:52:31,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:31,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227366939] [2022-11-25 16:52:31,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:31,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:31,287 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:31,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763197923] [2022-11-25 16:52:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:31,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:31,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:31,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:31,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 16:52:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:31,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:52:31,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:31,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:31,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227366939] [2022-11-25 16:52:31,366 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763197923] [2022-11-25 16:52:31,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763197923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:31,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:31,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:31,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639789009] [2022-11-25 16:52:31,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:31,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:31,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:31,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:31,369 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-25 16:52:31,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:31,469 INFO L93 Difference]: Finished difference Result 114 states and 142 transitions. [2022-11-25 16:52:31,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:31,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 [2022-11-25 16:52:31,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:31,471 INFO L225 Difference]: With dead ends: 114 [2022-11-25 16:52:31,471 INFO L226 Difference]: Without dead ends: 112 [2022-11-25 16:52:31,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:31,473 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:31,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 55 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:31,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-25 16:52:31,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2022-11-25 16:52:31,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.5681818181818181) internal successors, (138), 102 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 138 transitions. [2022-11-25 16:52:31,494 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 138 transitions. Word has length 8 [2022-11-25 16:52:31,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:31,494 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 138 transitions. [2022-11-25 16:52:31,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:31,495 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions. [2022-11-25 16:52:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 16:52:31,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:31,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:31,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:31,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:31,707 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash 553352576, now seen corresponding path program 1 times [2022-11-25 16:52:31,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:31,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320721425] [2022-11-25 16:52:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:31,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:31,714 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:31,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766690257] [2022-11-25 16:52:31,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:31,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:31,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:31,717 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:31,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 16:52:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:31,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:31,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:31,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:31,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:31,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320721425] [2022-11-25 16:52:31,826 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:31,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766690257] [2022-11-25 16:52:31,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766690257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:31,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:31,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:31,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638685637] [2022-11-25 16:52:31,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:31,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:31,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:31,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:31,830 INFO L87 Difference]: Start difference. First operand 103 states and 138 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:31,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:31,881 INFO L93 Difference]: Finished difference Result 122 states and 154 transitions. [2022-11-25 16:52:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:31,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 [2022-11-25 16:52:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:31,883 INFO L225 Difference]: With dead ends: 122 [2022-11-25 16:52:31,883 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 16:52:31,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:31,885 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 31 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:31,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 42 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:52:31,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 16:52:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 103. [2022-11-25 16:52:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.5227272727272727) internal successors, (134), 102 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:31,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2022-11-25 16:52:31,926 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 134 transitions. Word has length 9 [2022-11-25 16:52:31,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:31,926 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 134 transitions. [2022-11-25 16:52:31,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 134 transitions. [2022-11-25 16:52:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 16:52:31,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:31,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:31,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:32,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 16:52:32,135 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:32,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:32,136 INFO L85 PathProgramCache]: Analyzing trace with hash -25939253, now seen corresponding path program 1 times [2022-11-25 16:52:32,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:32,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946958756] [2022-11-25 16:52:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:32,144 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:32,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729078173] [2022-11-25 16:52:32,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:32,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:32,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:32,148 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:32,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 16:52:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:52:32,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:32,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:32,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:32,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946958756] [2022-11-25 16:52:32,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:32,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729078173] [2022-11-25 16:52:32,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729078173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:32,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:32,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:32,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502232913] [2022-11-25 16:52:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:32,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:32,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:32,311 INFO L87 Difference]: Start difference. First operand 103 states and 134 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:32,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:32,382 INFO L93 Difference]: Finished difference Result 115 states and 142 transitions. [2022-11-25 16:52:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:32,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 16:52:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:32,386 INFO L225 Difference]: With dead ends: 115 [2022-11-25 16:52:32,386 INFO L226 Difference]: Without dead ends: 114 [2022-11-25 16:52:32,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:32,392 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 25 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:32,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 35 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:32,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-25 16:52:32,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 103. [2022-11-25 16:52:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 102 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2022-11-25 16:52:32,416 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 10 [2022-11-25 16:52:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:32,416 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-11-25 16:52:32,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2022-11-25 16:52:32,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 16:52:32,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:32,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:32,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:32,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:32,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:32,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:32,632 INFO L85 PathProgramCache]: Analyzing trace with hash -804116766, now seen corresponding path program 1 times [2022-11-25 16:52:32,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:32,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58068282] [2022-11-25 16:52:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:32,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:32,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:32,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852214861] [2022-11-25 16:52:32,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:32,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:32,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:32,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:32,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 16:52:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:32,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:52:32,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:32,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:32,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:32,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58068282] [2022-11-25 16:52:32,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:32,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852214861] [2022-11-25 16:52:32,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852214861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:32,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:32,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:32,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733688355] [2022-11-25 16:52:32,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:32,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:32,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:32,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:32,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:32,839 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:32,932 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2022-11-25 16:52:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:32,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 16:52:32,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:32,934 INFO L225 Difference]: With dead ends: 120 [2022-11-25 16:52:32,935 INFO L226 Difference]: Without dead ends: 119 [2022-11-25 16:52:32,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:32,941 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:32,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-25 16:52:32,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 103. [2022-11-25 16:52:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.4318181818181819) internal successors, (126), 102 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 126 transitions. [2022-11-25 16:52:32,980 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 126 transitions. Word has length 11 [2022-11-25 16:52:32,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:32,980 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 126 transitions. [2022-11-25 16:52:32,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:32,981 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 126 transitions. [2022-11-25 16:52:32,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 16:52:32,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:32,982 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:32,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-25 16:52:33,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:33,191 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:33,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:33,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1117926046, now seen corresponding path program 1 times [2022-11-25 16:52:33,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:33,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239623996] [2022-11-25 16:52:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:33,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:33,199 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:33,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159021238] [2022-11-25 16:52:33,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:33,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:33,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:33,203 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:33,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 16:52:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:33,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:52:33,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:33,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:33,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:52:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:33,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:33,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239623996] [2022-11-25 16:52:33,639 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:33,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159021238] [2022-11-25 16:52:33,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159021238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:52:33,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:52:33,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-11-25 16:52:33,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109796157] [2022-11-25 16:52:33,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:52:33,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:52:33,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:33,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:52:33,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:52:33,653 INFO L87 Difference]: Start difference. First operand 103 states and 126 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:34,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:34,057 INFO L93 Difference]: Finished difference Result 222 states and 264 transitions. [2022-11-25 16:52:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:52:34,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 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 [2022-11-25 16:52:34,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:34,059 INFO L225 Difference]: With dead ends: 222 [2022-11-25 16:52:34,060 INFO L226 Difference]: Without dead ends: 219 [2022-11-25 16:52:34,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:52:34,061 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 108 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:34,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 69 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 16:52:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-25 16:52:34,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 157. [2022-11-25 16:52:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 142 states have (on average 1.4225352112676057) internal successors, (202), 156 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 202 transitions. [2022-11-25 16:52:34,078 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 202 transitions. Word has length 13 [2022-11-25 16:52:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:34,078 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 202 transitions. [2022-11-25 16:52:34,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 202 transitions. [2022-11-25 16:52:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 16:52:34,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:34,080 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:34,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:34,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:34,287 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:34,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash 958472918, now seen corresponding path program 1 times [2022-11-25 16:52:34,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:34,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450120917] [2022-11-25 16:52:34,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:34,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:34,295 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:34,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914250305] [2022-11-25 16:52:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:34,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:34,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:34,299 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:34,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 16:52:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:34,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:34,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:34,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:52:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:34,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:34,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450120917] [2022-11-25 16:52:34,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:34,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914250305] [2022-11-25 16:52:34,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914250305] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:52:34,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:52:34,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-11-25 16:52:34,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971430203] [2022-11-25 16:52:34,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:52:34,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:52:34,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:34,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:52:34,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:52:34,480 INFO L87 Difference]: Start difference. First operand 157 states and 202 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:34,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:34,636 INFO L93 Difference]: Finished difference Result 225 states and 270 transitions. [2022-11-25 16:52:34,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:52:34,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 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 16 [2022-11-25 16:52:34,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:34,638 INFO L225 Difference]: With dead ends: 225 [2022-11-25 16:52:34,638 INFO L226 Difference]: Without dead ends: 223 [2022-11-25 16:52:34,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:52:34,639 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 97 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:34,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 118 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:34,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-25 16:52:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 160. [2022-11-25 16:52:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 145 states have (on average 1.4) internal successors, (203), 159 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 203 transitions. [2022-11-25 16:52:34,655 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 203 transitions. Word has length 16 [2022-11-25 16:52:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:34,655 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 203 transitions. [2022-11-25 16:52:34,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2022-11-25 16:52:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 16:52:34,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:34,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:34,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:34,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 16:52:34,864 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:34,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash -14939818, now seen corresponding path program 1 times [2022-11-25 16:52:34,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:34,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624792512] [2022-11-25 16:52:34,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:34,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:34,873 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:34,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305197510] [2022-11-25 16:52:34,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:34,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:34,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:34,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:34,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 16:52:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:34,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:52:34,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:34,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:34,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624792512] [2022-11-25 16:52:34,935 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305197510] [2022-11-25 16:52:34,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305197510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:34,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:34,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:52:34,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353081635] [2022-11-25 16:52:34,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:34,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:34,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:34,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:34,937 INFO L87 Difference]: Start difference. First operand 160 states and 203 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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) [2022-11-25 16:52:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:34,985 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2022-11-25 16:52:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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 18 [2022-11-25 16:52:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:34,988 INFO L225 Difference]: With dead ends: 160 [2022-11-25 16:52:34,988 INFO L226 Difference]: Without dead ends: 159 [2022-11-25 16:52:34,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:34,989 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:34,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 59 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:52:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-25 16:52:35,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-11-25 16:52:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 145 states have (on average 1.3793103448275863) internal successors, (200), 158 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 200 transitions. [2022-11-25 16:52:35,007 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 200 transitions. Word has length 18 [2022-11-25 16:52:35,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:35,008 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 200 transitions. [2022-11-25 16:52:35,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 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) [2022-11-25 16:52:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 200 transitions. [2022-11-25 16:52:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 16:52:35,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:35,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:35,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:35,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 16:52:35,217 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:35,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:35,218 INFO L85 PathProgramCache]: Analyzing trace with hash -463134261, now seen corresponding path program 1 times [2022-11-25 16:52:35,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:35,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964595233] [2022-11-25 16:52:35,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:35,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:35,225 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:35,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711750542] [2022-11-25 16:52:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:35,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:35,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:35,228 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:35,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 16:52:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:35,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:52:35,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:35,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:35,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:35,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964595233] [2022-11-25 16:52:35,404 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:35,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711750542] [2022-11-25 16:52:35,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711750542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:35,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:35,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:52:35,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921430064] [2022-11-25 16:52:35,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:35,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:52:35,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:35,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:52:35,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:52:35,407 INFO L87 Difference]: Start difference. First operand 159 states and 200 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:35,460 INFO L93 Difference]: Finished difference Result 159 states and 200 transitions. [2022-11-25 16:52:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:52:35,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 16:52:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:35,462 INFO L225 Difference]: With dead ends: 159 [2022-11-25 16:52:35,462 INFO L226 Difference]: Without dead ends: 157 [2022-11-25 16:52:35,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:52:35,463 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:35,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 37 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:52:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-25 16:52:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-25 16:52:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 145 states have (on average 1.3172413793103448) internal successors, (191), 156 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2022-11-25 16:52:35,477 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 19 [2022-11-25 16:52:35,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:35,478 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2022-11-25 16:52:35,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:35,478 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2022-11-25 16:52:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 16:52:35,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:35,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:35,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:35,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 16:52:35,692 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:35,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:35,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1472260104, now seen corresponding path program 1 times [2022-11-25 16:52:35,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:35,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303653425] [2022-11-25 16:52:35,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:35,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:35,713 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:35,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025315260] [2022-11-25 16:52:35,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:35,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:35,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:35,718 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:35,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 16:52:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:35,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:35,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:35,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:35,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303653425] [2022-11-25 16:52:35,894 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:35,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025315260] [2022-11-25 16:52:35,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025315260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:35,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:35,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:52:35,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242570614] [2022-11-25 16:52:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:35,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:52:35,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:52:35,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:52:35,900 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:35,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:35,971 INFO L93 Difference]: Finished difference Result 161 states and 196 transitions. [2022-11-25 16:52:35,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:52:35,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 16:52:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:35,973 INFO L225 Difference]: With dead ends: 161 [2022-11-25 16:52:35,973 INFO L226 Difference]: Without dead ends: 159 [2022-11-25 16:52:35,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:52:35,975 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:35,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 23 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-25 16:52:35,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 128. [2022-11-25 16:52:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 118 states have (on average 1.305084745762712) internal successors, (154), 127 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 154 transitions. [2022-11-25 16:52:35,989 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 154 transitions. Word has length 20 [2022-11-25 16:52:35,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:35,989 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 154 transitions. [2022-11-25 16:52:35,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:35,990 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 154 transitions. [2022-11-25 16:52:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 16:52:35,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:35,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:36,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:36,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 16:52:36,199 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1604577133, now seen corresponding path program 1 times [2022-11-25 16:52:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:36,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446774650] [2022-11-25 16:52:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:36,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:36,207 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:36,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421696631] [2022-11-25 16:52:36,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:36,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:36,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:36,209 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:36,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 16:52:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:36,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:36,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:36,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:36,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:36,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446774650] [2022-11-25 16:52:36,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:36,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421696631] [2022-11-25 16:52:36,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421696631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:36,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:36,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:52:36,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752151745] [2022-11-25 16:52:36,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:36,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:52:36,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:36,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:52:36,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:52:36,559 INFO L87 Difference]: Start difference. First operand 128 states and 154 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:36,632 INFO L93 Difference]: Finished difference Result 143 states and 169 transitions. [2022-11-25 16:52:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:36,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-25 16:52:36,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:36,635 INFO L225 Difference]: With dead ends: 143 [2022-11-25 16:52:36,635 INFO L226 Difference]: Without dead ends: 141 [2022-11-25 16:52:36,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:52:36,636 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:36,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 41 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:36,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-25 16:52:36,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2022-11-25 16:52:36,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 139 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:36,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2022-11-25 16:52:36,652 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 21 [2022-11-25 16:52:36,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:36,653 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2022-11-25 16:52:36,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:36,653 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2022-11-25 16:52:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 16:52:36,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:36,655 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:36,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:36,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:36,861 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:36,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash 105367759, now seen corresponding path program 1 times [2022-11-25 16:52:36,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:36,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394955118] [2022-11-25 16:52:36,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:36,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:36,879 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:36,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928943602] [2022-11-25 16:52:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:36,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:36,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:36,882 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:36,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 16:52:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:36,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:52:36,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 16:52:36,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:52:36,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:36,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394955118] [2022-11-25 16:52:36,972 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:36,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928943602] [2022-11-25 16:52:36,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928943602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:36,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:36,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:52:36,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586980583] [2022-11-25 16:52:36,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:36,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:52:36,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:36,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:52:36,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:36,975 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:37,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:37,047 INFO L93 Difference]: Finished difference Result 175 states and 201 transitions. [2022-11-25 16:52:37,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:52:37,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-25 16:52:37,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:37,048 INFO L225 Difference]: With dead ends: 175 [2022-11-25 16:52:37,049 INFO L226 Difference]: Without dead ends: 140 [2022-11-25 16:52:37,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:52:37,050 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:37,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:37,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-25 16:52:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-11-25 16:52:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 139 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2022-11-25 16:52:37,062 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 23 [2022-11-25 16:52:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:37,062 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2022-11-25 16:52:37,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2022-11-25 16:52:37,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 16:52:37,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:37,064 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2022-11-25 16:52:37,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:37,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:37,270 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:37,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1212336093, now seen corresponding path program 1 times [2022-11-25 16:52:37,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:37,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418633266] [2022-11-25 16:52:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:37,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:37,278 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:37,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520555933] [2022-11-25 16:52:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:37,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:37,280 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:37,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 16:52:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:37,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:52:37,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:37,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:52:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:37,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:37,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418633266] [2022-11-25 16:52:37,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:37,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520555933] [2022-11-25 16:52:37,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520555933] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:52:37,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:52:37,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-25 16:52:37,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523062363] [2022-11-25 16:52:37,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:52:37,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:52:37,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:37,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:52:37,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:52:37,495 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:37,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:37,676 INFO L93 Difference]: Finished difference Result 325 states and 363 transitions. [2022-11-25 16:52:37,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:52:37,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 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 26 [2022-11-25 16:52:37,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:37,679 INFO L225 Difference]: With dead ends: 325 [2022-11-25 16:52:37,679 INFO L226 Difference]: Without dead ends: 323 [2022-11-25 16:52:37,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:52:37,681 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 160 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:37,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 152 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:52:37,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-11-25 16:52:37,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 158. [2022-11-25 16:52:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 148 states have (on average 1.2635135135135136) internal successors, (187), 157 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 187 transitions. [2022-11-25 16:52:37,697 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 187 transitions. Word has length 26 [2022-11-25 16:52:37,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:37,697 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 187 transitions. [2022-11-25 16:52:37,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 187 transitions. [2022-11-25 16:52:37,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 16:52:37,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:37,699 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:37,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:37,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 16:52:37,912 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:37,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:37,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1149305828, now seen corresponding path program 1 times [2022-11-25 16:52:37,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:37,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697513495] [2022-11-25 16:52:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:37,928 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:37,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094489662] [2022-11-25 16:52:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:37,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:37,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:37,943 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:37,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 16:52:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:38,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 16:52:38,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:38,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:52:51,480 WARN L233 SmtUtils]: Spent 12.69s on a formula simplification. DAG size of input: 28 DAG size of output: 27 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 16:52:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:52,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:52,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697513495] [2022-11-25 16:52:52,205 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:52,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094489662] [2022-11-25 16:52:52,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094489662] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:52:52,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:52:52,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2022-11-25 16:52:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251719659] [2022-11-25 16:52:52,206 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:52:52,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:52:52,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:52:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:52:52,208 INFO L87 Difference]: Start difference. First operand 158 states and 187 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:52,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:52,869 INFO L93 Difference]: Finished difference Result 231 states and 265 transitions. [2022-11-25 16:52:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:52:52,870 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 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 31 [2022-11-25 16:52:52,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:52,871 INFO L225 Difference]: With dead ends: 231 [2022-11-25 16:52:52,871 INFO L226 Difference]: Without dead ends: 196 [2022-11-25 16:52:52,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:52:52,872 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 90 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:52,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 70 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 16:52:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-25 16:52:52,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 164. [2022-11-25 16:52:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 154 states have (on average 1.2467532467532467) internal successors, (192), 163 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 192 transitions. [2022-11-25 16:52:52,889 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 192 transitions. Word has length 31 [2022-11-25 16:52:52,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:52,890 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 192 transitions. [2022-11-25 16:52:52,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 192 transitions. [2022-11-25 16:52:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 16:52:52,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:52,892 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-25 16:52:52,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:53,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 16:52:53,099 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1118578589, now seen corresponding path program 2 times [2022-11-25 16:52:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:53,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741591018] [2022-11-25 16:52:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:53,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:53,116 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:53,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604693455] [2022-11-25 16:52:53,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:52:53,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:53,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:53,118 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:53,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 16:52:53,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:52:53,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:52:53,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 16:52:53,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:53,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:52:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:54,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:54,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741591018] [2022-11-25 16:52:54,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:54,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604693455] [2022-11-25 16:52:54,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604693455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:52:54,274 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:52:54,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-11-25 16:52:54,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87043227] [2022-11-25 16:52:54,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:52:54,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:52:54,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:52:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:52:54,276 INFO L87 Difference]: Start difference. First operand 164 states and 192 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:56,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:56,962 INFO L93 Difference]: Finished difference Result 536 states and 602 transitions. [2022-11-25 16:52:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:52:56,962 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 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 37 [2022-11-25 16:52:56,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:56,965 INFO L225 Difference]: With dead ends: 536 [2022-11-25 16:52:56,965 INFO L226 Difference]: Without dead ends: 535 [2022-11-25 16:52:56,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:52:56,967 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 332 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:56,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 141 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 16:52:56,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-25 16:52:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 191. [2022-11-25 16:52:56,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 181 states have (on average 1.2486187845303867) internal successors, (226), 190 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:56,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 226 transitions. [2022-11-25 16:52:56,987 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 226 transitions. Word has length 37 [2022-11-25 16:52:56,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:56,988 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 226 transitions. [2022-11-25 16:52:56,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:56,988 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 226 transitions. [2022-11-25 16:52:56,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 16:52:56,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:56,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:52:56,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:57,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 16:52:57,195 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:52:57,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:57,196 INFO L85 PathProgramCache]: Analyzing trace with hash -190913168, now seen corresponding path program 1 times [2022-11-25 16:52:57,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:57,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186066301] [2022-11-25 16:52:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:57,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:57,206 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:52:57,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584722030] [2022-11-25 16:52:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:57,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:57,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:57,209 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:57,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 16:52:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:57,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 16:52:57,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:52:57,614 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:57,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:52:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:58,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:58,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186066301] [2022-11-25 16:52:58,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:52:58,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584722030] [2022-11-25 16:52:58,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584722030] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:52:58,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:52:58,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2022-11-25 16:52:58,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357193433] [2022-11-25 16:52:58,779 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:52:58,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:52:58,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:58,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:52:58,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:52:58,782 INFO L87 Difference]: Start difference. First operand 191 states and 226 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:00,511 INFO L93 Difference]: Finished difference Result 395 states and 455 transitions. [2022-11-25 16:53:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:53:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 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 40 [2022-11-25 16:53:00,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:00,515 INFO L225 Difference]: With dead ends: 395 [2022-11-25 16:53:00,515 INFO L226 Difference]: Without dead ends: 393 [2022-11-25 16:53:00,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=142, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:53:00,517 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 349 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:00,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 148 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 16:53:00,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-25 16:53:00,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 287. [2022-11-25 16:53:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 277 states have (on average 1.2346570397111913) internal successors, (342), 286 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 342 transitions. [2022-11-25 16:53:00,546 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 342 transitions. Word has length 40 [2022-11-25 16:53:00,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:00,547 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 342 transitions. [2022-11-25 16:53:00,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:00,548 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 342 transitions. [2022-11-25 16:53:00,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 16:53:00,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:00,550 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2022-11-25 16:53:00,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-11-25 16:53:00,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:00,755 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:00,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:00,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1076455049, now seen corresponding path program 2 times [2022-11-25 16:53:00,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:00,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890136311] [2022-11-25 16:53:00,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:00,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:00,762 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:00,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059443941] [2022-11-25 16:53:00,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:53:00,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:00,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:00,764 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:00,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 16:53:00,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:53:00,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:53:00,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:53:00,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:00,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:53:01,042 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:01,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:01,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890136311] [2022-11-25 16:53:01,043 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:53:01,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059443941] [2022-11-25 16:53:01,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059443941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:53:01,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:53:01,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-11-25 16:53:01,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110955112] [2022-11-25 16:53:01,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:53:01,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:53:01,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:01,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:53:01,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:53:01,045 INFO L87 Difference]: Start difference. First operand 287 states and 342 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:01,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:01,345 INFO L93 Difference]: Finished difference Result 767 states and 886 transitions. [2022-11-25 16:53:01,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:53:01,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 0 states have call successors, (0), 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 40 [2022-11-25 16:53:01,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:01,349 INFO L225 Difference]: With dead ends: 767 [2022-11-25 16:53:01,349 INFO L226 Difference]: Without dead ends: 765 [2022-11-25 16:53:01,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:53:01,351 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 357 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:01,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 243 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:53:01,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-11-25 16:53:01,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 323. [2022-11-25 16:53:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 313 states have (on average 1.2108626198083068) internal successors, (379), 322 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 379 transitions. [2022-11-25 16:53:01,390 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 379 transitions. Word has length 40 [2022-11-25 16:53:01,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:01,391 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 379 transitions. [2022-11-25 16:53:01,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 379 transitions. [2022-11-25 16:53:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 16:53:01,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:01,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:01,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:01,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:01,599 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:01,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:01,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1623340837, now seen corresponding path program 1 times [2022-11-25 16:53:01,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:01,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042344329] [2022-11-25 16:53:01,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:01,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:01,611 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:01,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030796888] [2022-11-25 16:53:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:01,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:01,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:01,613 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:01,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-25 16:53:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:01,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:53:01,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 16:53:01,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:01,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:01,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042344329] [2022-11-25 16:53:01,717 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:53:01,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030796888] [2022-11-25 16:53:01,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030796888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:01,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:01,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:53:01,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873285077] [2022-11-25 16:53:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:01,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:53:01,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:01,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:53:01,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:01,719 INFO L87 Difference]: Start difference. First operand 323 states and 379 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:01,852 INFO L93 Difference]: Finished difference Result 338 states and 393 transitions. [2022-11-25 16:53:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:53:01,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-25 16:53:01,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:01,854 INFO L225 Difference]: With dead ends: 338 [2022-11-25 16:53:01,854 INFO L226 Difference]: Without dead ends: 337 [2022-11-25 16:53:01,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:53:01,856 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:01,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 97 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:53:01,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-25 16:53:01,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 322. [2022-11-25 16:53:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 313 states have (on average 1.1884984025559104) internal successors, (372), 321 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 372 transitions. [2022-11-25 16:53:01,889 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 372 transitions. Word has length 41 [2022-11-25 16:53:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:01,890 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 372 transitions. [2022-11-25 16:53:01,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 372 transitions. [2022-11-25 16:53:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 16:53:01,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:01,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:01,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:02,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 16:53:02,097 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:02,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:02,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1216041682, now seen corresponding path program 1 times [2022-11-25 16:53:02,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:02,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599722631] [2022-11-25 16:53:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:02,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:02,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:02,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729082670] [2022-11-25 16:53:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:02,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:02,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:02,107 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:02,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 16:53:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:02,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-25 16:53:02,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:02,375 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 16:53:02,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:53:02,482 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 16:53:02,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:02,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599722631] [2022-11-25 16:53:02,482 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:53:02,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729082670] [2022-11-25 16:53:02,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729082670] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 16:53:02,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:53:02,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-11-25 16:53:02,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226028868] [2022-11-25 16:53:02,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:02,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:02,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:02,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:02,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:53:02,484 INFO L87 Difference]: Start difference. First operand 322 states and 372 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:02,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:02,591 INFO L93 Difference]: Finished difference Result 322 states and 372 transitions. [2022-11-25 16:53:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:53:02,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 42 [2022-11-25 16:53:02,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:02,593 INFO L225 Difference]: With dead ends: 322 [2022-11-25 16:53:02,593 INFO L226 Difference]: Without dead ends: 91 [2022-11-25 16:53:02,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:53:02,598 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:02,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:53:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-25 16:53:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-25 16:53:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 90 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2022-11-25 16:53:02,610 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 42 [2022-11-25 16:53:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:02,631 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2022-11-25 16:53:02,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2022-11-25 16:53:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 16:53:02,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:02,632 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2022-11-25 16:53:02,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:02,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:02,839 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:02,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:02,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1033168561, now seen corresponding path program 2 times [2022-11-25 16:53:02,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:02,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900409681] [2022-11-25 16:53:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:02,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:02,847 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:02,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355307000] [2022-11-25 16:53:02,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:53:02,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:02,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:02,850 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:02,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 16:53:02,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 16:53:02,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:53:02,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:53:02,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-25 16:53:03,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:53:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-25 16:53:03,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:03,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900409681] [2022-11-25 16:53:03,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:53:03,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355307000] [2022-11-25 16:53:03,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355307000] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:53:03,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:53:03,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-25 16:53:03,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964680858] [2022-11-25 16:53:03,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:53:03,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:53:03,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:03,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:53:03,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:53:03,297 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:04,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:04,867 INFO L93 Difference]: Finished difference Result 91 states and 94 transitions. [2022-11-25 16:53:04,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:53:04,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-25 16:53:04,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:04,869 INFO L225 Difference]: With dead ends: 91 [2022-11-25 16:53:04,869 INFO L226 Difference]: Without dead ends: 90 [2022-11-25 16:53:04,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:53:04,870 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:04,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:53:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-25 16:53:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-25 16:53:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 88 states have (on average 1.0227272727272727) internal successors, (90), 89 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:04,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2022-11-25 16:53:04,882 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 58 [2022-11-25 16:53:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2022-11-25 16:53:04,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2022-11-25 16:53:04,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 16:53:04,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:04,884 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2022-11-25 16:53:04,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:05,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:05,090 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:05,091 INFO L85 PathProgramCache]: Analyzing trace with hash -937874789, now seen corresponding path program 3 times [2022-11-25 16:53:05,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:05,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969890585] [2022-11-25 16:53:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:05,098 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:05,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261648090] [2022-11-25 16:53:05,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:53:05,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:05,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:05,104 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:05,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 16:53:05,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 16:53:05,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:53:05,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:53:05,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-11-25 16:53:05,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:53:05,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:05,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969890585] [2022-11-25 16:53:05,338 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:53:05,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261648090] [2022-11-25 16:53:05,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261648090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:05,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:05,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:53:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132317416] [2022-11-25 16:53:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:05,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:05,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:05,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:05,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:05,341 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-11-25 16:53:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:05,359 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-11-25 16:53:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:53:05,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) 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 85 [2022-11-25 16:53:05,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:05,361 INFO L225 Difference]: With dead ends: 90 [2022-11-25 16:53:05,361 INFO L226 Difference]: Without dead ends: 89 [2022-11-25 16:53:05,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:05,363 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:05,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-25 16:53:05,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-11-25 16:53:05,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.0113636363636365) internal successors, (89), 88 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2022-11-25 16:53:05,375 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 85 [2022-11-25 16:53:05,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:05,375 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2022-11-25 16:53:05,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-11-25 16:53:05,376 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2022-11-25 16:53:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 16:53:05,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:05,377 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2022-11-25 16:53:05,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:05,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-25 16:53:05,590 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:05,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:05,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1465528903, now seen corresponding path program 3 times [2022-11-25 16:53:05,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:05,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251285295] [2022-11-25 16:53:05,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:05,597 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:05,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819889235] [2022-11-25 16:53:05,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:53:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:05,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:05,601 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:05,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-25 16:53:05,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-25 16:53:05,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:53:05,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 16:53:05,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:05,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:53:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:06,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251285295] [2022-11-25 16:53:06,383 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:53:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819889235] [2022-11-25 16:53:06,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819889235] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:53:06,384 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:53:06,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2022-11-25 16:53:06,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639622544] [2022-11-25 16:53:06,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:53:06,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 16:53:06,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:06,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 16:53:06,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:53:06,386 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 24 states, 23 states have (on average 7.608695652173913) internal successors, (175), 24 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:06,534 INFO L93 Difference]: Finished difference Result 186 states and 197 transitions. [2022-11-25 16:53:06,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 16:53:06,535 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.608695652173913) internal successors, (175), 24 states have internal predecessors, (175), 0 states have call successors, (0), 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 88 [2022-11-25 16:53:06,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:06,536 INFO L225 Difference]: With dead ends: 186 [2022-11-25 16:53:06,536 INFO L226 Difference]: Without dead ends: 185 [2022-11-25 16:53:06,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:53:06,537 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:06,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 124 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:53:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-25 16:53:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-25 16:53:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.0054347826086956) internal successors, (185), 184 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 185 transitions. [2022-11-25 16:53:06,553 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 185 transitions. Word has length 88 [2022-11-25 16:53:06,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:06,553 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 185 transitions. [2022-11-25 16:53:06,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.608695652173913) internal successors, (175), 24 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 185 transitions. [2022-11-25 16:53:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-25 16:53:06,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:06,556 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 1, 1, 1] [2022-11-25 16:53:06,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:06,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-25 16:53:06,769 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:06,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:06,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1691439677, now seen corresponding path program 4 times [2022-11-25 16:53:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:06,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648088790] [2022-11-25 16:53:06,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:06,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:06,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:06,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475119772] [2022-11-25 16:53:06,783 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 16:53:06,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:06,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:06,784 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:06,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-25 16:53:06,877 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 16:53:06,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:53:06,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 16:53:06,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:07,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:53:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:08,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648088790] [2022-11-25 16:53:08,577 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:53:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475119772] [2022-11-25 16:53:08,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475119772] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:53:08,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 16:53:08,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2022-11-25 16:53:08,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739292966] [2022-11-25 16:53:08,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 16:53:08,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-25 16:53:08,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-25 16:53:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 16:53:08,583 INFO L87 Difference]: Start difference. First operand 185 states and 185 transitions. Second operand has 48 states, 47 states have (on average 7.808510638297872) internal successors, (367), 48 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:08,821 INFO L93 Difference]: Finished difference Result 250 states and 257 transitions. [2022-11-25 16:53:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 16:53:08,822 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 7.808510638297872) internal successors, (367), 48 states have internal predecessors, (367), 0 states have call successors, (0), 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 184 [2022-11-25 16:53:08,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:08,823 INFO L225 Difference]: With dead ends: 250 [2022-11-25 16:53:08,824 INFO L226 Difference]: Without dead ends: 249 [2022-11-25 16:53:08,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 16:53:08,826 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:08,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:53:08,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-11-25 16:53:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-11-25 16:53:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.0040322580645162) internal successors, (249), 248 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 249 transitions. [2022-11-25 16:53:08,846 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 249 transitions. Word has length 184 [2022-11-25 16:53:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:08,847 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 249 transitions. [2022-11-25 16:53:08,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 7.808510638297872) internal successors, (367), 48 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 249 transitions. [2022-11-25 16:53:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-25 16:53:08,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:08,850 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 1, 1, 1] [2022-11-25 16:53:08,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:09,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-25 16:53:09,057 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 16:53:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash -407291243, now seen corresponding path program 5 times [2022-11-25 16:53:09,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:09,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780303862] [2022-11-25 16:53:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:09,074 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:53:09,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378627984] [2022-11-25 16:53:09,075 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 16:53:09,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:53:09,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:09,076 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:53:09,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-25 16:53:09,227 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2022-11-25 16:53:09,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-25 16:53:09,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:53:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:53:09,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:53:09,402 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:53:09,404 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-25 16:53:09,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-25 16:53:09,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-25 16:53:09,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-25 16:53:09,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-25 16:53:09,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-25 16:53:09,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-25 16:53:09,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-25 16:53:09,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-25 16:53:09,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-25 16:53:09,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-25 16:53:09,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-25 16:53:09,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-25 16:53:09,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-25 16:53:09,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-25 16:53:09,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-25 16:53:09,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-25 16:53:09,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-25 16:53:09,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-25 16:53:09,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-25 16:53:09,622 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:09,628 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:53:09,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:53:09 BoogieIcfgContainer [2022-11-25 16:53:09,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:53:09,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:53:09,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:53:09,719 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:53:09,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:52:28" (3/4) ... [2022-11-25 16:53:09,721 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 16:53:09,844 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:53:09,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:53:09,851 INFO L158 Benchmark]: Toolchain (without parser) took 42056.94ms. Allocated memory was 157.3MB in the beginning and 192.9MB in the end (delta: 35.7MB). Free memory was 114.5MB in the beginning and 61.8MB in the end (delta: 52.7MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2022-11-25 16:53:09,852 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:53:09,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.35ms. Allocated memory is still 157.3MB. Free memory was 114.5MB in the beginning and 105.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 16:53:09,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.09ms. Allocated memory is still 157.3MB. Free memory was 105.0MB in the beginning and 103.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:53:09,853 INFO L158 Benchmark]: Boogie Preprocessor took 27.60ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 102.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:53:09,854 INFO L158 Benchmark]: RCFGBuilder took 537.00ms. Allocated memory is still 157.3MB. Free memory was 102.4MB in the beginning and 91.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 16:53:09,857 INFO L158 Benchmark]: TraceAbstraction took 40992.47ms. Allocated memory was 157.3MB in the beginning and 192.9MB in the end (delta: 35.7MB). Free memory was 90.3MB in the beginning and 69.1MB in the end (delta: 21.2MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2022-11-25 16:53:09,857 INFO L158 Benchmark]: Witness Printer took 132.68ms. Allocated memory is still 192.9MB. Free memory was 69.1MB in the beginning and 61.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 16:53:09,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.35ms. Allocated memory is still 157.3MB. Free memory was 114.5MB in the beginning and 105.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.09ms. Allocated memory is still 157.3MB. Free memory was 105.0MB in the beginning and 103.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.60ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 102.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 537.00ms. Allocated memory is still 157.3MB. Free memory was 102.4MB in the beginning and 91.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 40992.47ms. Allocated memory was 157.3MB in the beginning and 192.9MB in the end (delta: 35.7MB). Free memory was 90.3MB in the beginning and 69.1MB in the end (delta: 21.2MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Witness Printer took 132.68ms. Allocated memory is still 192.9MB. Free memory was 69.1MB in the beginning and 61.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 39]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int A, B; [L24] int r, d, p, q; [L25] A = __VERIFIER_nondet_int() [L26] B = 1 [L28] r = A [L29] d = B [L30] p = 1 [L31] q = 0 VAL [A=0, B=1, d=1, p=1, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=1, p=1, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=1, p=1, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=1, p=1, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=2, p=1, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=2, p=2, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=2, p=2, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=2, p=2, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=2, p=2, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=4, p=2, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=4, p=4, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=4, p=4, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=4, p=4, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=4, p=4, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=8, p=4, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=8, p=8, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=8, p=8, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=8, p=8, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=8, p=8, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=16, p=8, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=16, p=16, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=16, p=16, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=16, p=16, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=16, p=16, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=32, p=16, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=32, p=32, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=32, p=32, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=32, p=32, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=32, p=32, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=64, p=32, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=64, p=64, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=64, p=64, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=64, p=64, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=64, p=64, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=128, p=64, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=128, p=128, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=128, p=128, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=128, p=128, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=128, p=128, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=256, p=128, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=256, p=256, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=256, p=256, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=256, p=256, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=256, p=256, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=512, p=256, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=512, p=512, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=512, p=512, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=512, p=512, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=512, p=512, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=1024, p=512, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=1024, p=1024, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=1024, p=1024, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=1024, p=1024, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=1024, p=1024, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=2048, p=1024, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=2048, p=2048, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=2048, p=2048, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=2048, p=2048, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=2048, p=2048, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=4096, p=2048, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=4096, p=4096, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=4096, p=4096, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=4096, p=4096, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=4096, p=4096, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=8192, p=4096, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=8192, p=8192, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=8192, p=8192, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=8192, p=8192, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=8192, p=8192, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=16384, p=8192, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=16384, p=16384, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=16384, p=16384, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=16384, p=16384, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=16384, p=16384, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=32768, p=16384, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=32768, p=32768, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=32768, p=32768, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=32768, p=32768, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=32768, p=32768, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=65536, p=32768, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=65536, p=65536, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=65536, p=65536, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=65536, p=65536, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=65536, p=65536, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=131072, p=65536, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=131072, p=131072, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=131072, p=131072, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=131072, p=131072, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=131072, p=131072, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=262144, p=131072, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=262144, p=262144, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=262144, p=262144, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=262144, p=262144, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=262144, p=262144, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=524288, p=262144, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=524288, p=524288, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=524288, p=524288, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=524288, p=524288, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=524288, p=524288, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=1048576, p=524288, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=1048576, p=1048576, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=1048576, p=1048576, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=1048576, p=1048576, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=1048576, p=1048576, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=2097152, p=1048576, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=2097152, p=2097152, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=2097152, p=2097152, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=2097152, p=2097152, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=2097152, p=2097152, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=4194304, p=2097152, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=4194304, p=4194304, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=4194304, p=4194304, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=4194304, p=4194304, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=4194304, p=4194304, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=8388608, p=4194304, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=8388608, p=8388608, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=8388608, p=8388608, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=8388608, p=8388608, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=8388608, p=8388608, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=16777216, p=8388608, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=16777216, p=16777216, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=16777216, p=16777216, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=16777216, p=16777216, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=16777216, p=16777216, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=33554432, p=16777216, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=33554432, p=33554432, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=33554432, p=33554432, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=33554432, p=33554432, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=33554432, p=33554432, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=67108864, p=33554432, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=67108864, p=67108864, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=67108864, p=67108864, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=67108864, p=67108864, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=67108864, p=67108864, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=134217728, p=67108864, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=134217728, p=134217728, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=134217728, p=134217728, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=134217728, p=134217728, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=134217728, p=134217728, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=268435456, p=134217728, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=268435456, p=268435456, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=268435456, p=268435456, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=268435456, p=268435456, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=268435456, p=268435456, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=536870912, p=268435456, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=536870912, p=536870912, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=536870912, p=536870912, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=536870912, p=536870912, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=536870912, p=536870912, q=0, r=0] [L39] EXPR 2 * d [L39] d = 2 * d VAL [A=0, B=1, d=1073741824, p=536870912, q=0, r=0] [L40] EXPR 2 * p [L40] p = 2 * p VAL [A=0, B=1, d=1073741824, p=1073741824, q=0, r=0] [L33] COND TRUE 1 VAL [A=0, B=1, d=1073741824, p=1073741824, q=0, r=0] [L37] EXPR B * p VAL [A=0, B=1, d=1073741824, p=1073741824, q=0, r=0] [L37] COND FALSE !(!(d == B * p)) VAL [A=0, B=1, d=1073741824, p=1073741824, q=0, r=0] [L39] 2 * d VAL [A=0, B=1, d=1073741824, p=1073741824, q=0, r=0] - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 40.8s, OverallIterations: 27, TraceHistogramMax: 31, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1850 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1850 mSDsluCounter, 1927 SdHoareTripleChecker+Invalid, 7.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1321 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1806 IncrementalHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 606 mSDtfsCounter, 1806 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1412 GetRequests, 1244 SyntacticMatches, 5 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 16.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=20, InterpolantAutomatonStates: 181, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 26 MinimizatonAttempts, 1359 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 22.3s InterpolantComputationTime, 1112 NumberOfCodeBlocks, 992 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 1402 ConstructedInterpolants, 106 QuantifiedInterpolants, 7937 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1423 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 37 InterpolantComputations, 16 PerfectInterpolantSequences, 726/5970 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 16:53:09,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95553436-b85f-499e-a85c-67ccba8a6fe2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)