/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 06:14:48,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 06:14:48,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 06:14:48,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 06:14:48,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 06:14:48,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 06:14:48,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 06:14:48,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 06:14:48,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 06:14:48,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 06:14:48,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 06:14:48,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 06:14:48,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 06:14:48,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 06:14:48,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 06:14:48,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 06:14:48,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 06:14:48,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 06:14:48,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 06:14:48,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 06:14:48,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 06:14:48,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 06:14:48,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 06:14:48,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 06:14:48,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 06:14:48,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 06:14:48,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 06:14:48,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 06:14:48,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 06:14:48,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 06:14:48,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 06:14:48,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 06:14:48,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 06:14:48,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 06:14:48,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 06:14:48,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 06:14:48,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 06:14:48,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 06:14:48,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 06:14:48,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 06:14:48,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 06:14:48,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-16 06:14:48,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 06:14:48,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 06:14:48,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 06:14:48,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 06:14:48,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 06:14:48,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 06:14:48,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 06:14:48,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 06:14:48,196 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 06:14:48,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 06:14:48,197 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 06:14:48,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 06:14:48,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 06:14:48,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 06:14:48,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 06:14:48,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 06:14:48,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 06:14:48,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 06:14:48,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 06:14:48,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 06:14:48,200 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 06:14:48,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2022-11-16 06:14:48,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 06:14:48,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 06:14:48,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 06:14:48,565 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 06:14:48,565 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 06:14:48,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2022-11-16 06:14:48,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab09d0dd/5e132fddd8344f6fac596367763fe30d/FLAG74e248c86 [2022-11-16 06:14:49,179 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 06:14:49,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2022-11-16 06:14:49,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab09d0dd/5e132fddd8344f6fac596367763fe30d/FLAG74e248c86 [2022-11-16 06:14:49,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab09d0dd/5e132fddd8344f6fac596367763fe30d [2022-11-16 06:14:49,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 06:14:49,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 06:14:49,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 06:14:49,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 06:14:49,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 06:14:49,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:14:49" (1/1) ... [2022-11-16 06:14:49,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c21daea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:49, skipping insertion in model container [2022-11-16 06:14:49,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:14:49" (1/1) ... [2022-11-16 06:14:49,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 06:14:49,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 06:14:50,075 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c[3424,3437] [2022-11-16 06:14:50,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 06:14:50,119 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 06:14:50,176 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c[3424,3437] [2022-11-16 06:14:50,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 06:14:50,222 INFO L208 MainTranslator]: Completed translation [2022-11-16 06:14:50,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50 WrapperNode [2022-11-16 06:14:50,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 06:14:50,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 06:14:50,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 06:14:50,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 06:14:50,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,311 INFO L138 Inliner]: procedures = 25, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 245 [2022-11-16 06:14:50,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 06:14:50,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 06:14:50,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 06:14:50,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 06:14:50,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 06:14:50,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 06:14:50,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 06:14:50,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 06:14:50,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (1/1) ... [2022-11-16 06:14:50,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 06:14:50,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:14:50,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 06:14:50,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 06:14:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 06:14:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 06:14:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 06:14:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 06:14:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 06:14:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 06:14:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 06:14:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 06:14:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 06:14:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 06:14:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 06:14:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 06:14:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 06:14:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 06:14:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 06:14:50,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 06:14:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 06:14:50,540 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 06:14:50,744 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 06:14:50,746 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 06:14:51,469 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 06:14:51,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 06:14:51,723 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-16 06:14:51,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 06:14:51 BoogieIcfgContainer [2022-11-16 06:14:51,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 06:14:51,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 06:14:51,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 06:14:51,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 06:14:51,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:14:49" (1/3) ... [2022-11-16 06:14:51,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c59c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:14:51, skipping insertion in model container [2022-11-16 06:14:51,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:50" (2/3) ... [2022-11-16 06:14:51,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c59c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:14:51, skipping insertion in model container [2022-11-16 06:14:51,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 06:14:51" (3/3) ... [2022-11-16 06:14:51,736 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-horseshoe.wvr.c [2022-11-16 06:14:51,744 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 06:14:51,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 06:14:51,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 06:14:51,752 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 06:14:51,898 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 06:14:51,964 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 06:14:51,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 06:14:51,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:14:51,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 06:14:52,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 06:14:52,050 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 06:14:52,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2022-11-16 06:14:52,109 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=PARTIAL_ORDER_FA, 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;@5945041e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 06:14:52,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 06:14:52,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:14:52,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:14:52,539 INFO L85 PathProgramCache]: Analyzing trace with hash 461449685, now seen corresponding path program 1 times [2022-11-16 06:14:52,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:14:52,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590410998] [2022-11-16 06:14:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:14:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:14:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:14:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:14:52,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:14:52,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590410998] [2022-11-16 06:14:52,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590410998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:14:52,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 06:14:52,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 06:14:52,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039172189] [2022-11-16 06:14:52,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:14:52,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 06:14:52,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:14:52,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 06:14:52,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 06:14:52,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:52,997 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:14:52,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:14:52,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:53,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:53,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 06:14:53,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:14:53,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:14:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1822212564, now seen corresponding path program 1 times [2022-11-16 06:14:53,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:14:53,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162514066] [2022-11-16 06:14:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:14:53,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:14:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:14:53,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:14:53,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:14:53,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162514066] [2022-11-16 06:14:53,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162514066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:14:53,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 06:14:53,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 06:14:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208014346] [2022-11-16 06:14:53,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:14:53,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 06:14:53,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:14:53,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 06:14:53,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 06:14:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:53,796 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:14:53,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:14:53,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:53,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:54,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:54,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:14:54,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 06:14:54,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:14:54,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:14:54,127 INFO L85 PathProgramCache]: Analyzing trace with hash -846328068, now seen corresponding path program 1 times [2022-11-16 06:14:54,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:14:54,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323673906] [2022-11-16 06:14:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:14:54,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:14:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:14:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:14:54,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:14:54,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323673906] [2022-11-16 06:14:54,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323673906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:14:54,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 06:14:54,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 06:14:54,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383156871] [2022-11-16 06:14:54,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:14:54,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 06:14:54,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:14:54,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 06:14:54,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 06:14:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:54,478 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:14:54,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 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) [2022-11-16 06:14:54,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:54,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:14:54,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:14:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:14:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:14:55,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 06:14:55,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:14:55,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:14:55,019 INFO L85 PathProgramCache]: Analyzing trace with hash -305222665, now seen corresponding path program 1 times [2022-11-16 06:14:55,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:14:55,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220741835] [2022-11-16 06:14:55,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:14:55,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:14:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:15:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:15:02,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:15:02,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220741835] [2022-11-16 06:15:02,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220741835] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:15:02,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823129423] [2022-11-16 06:15:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:15:02,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:15:02,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:15:02,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:15:02,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 06:15:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:15:02,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-16 06:15:02,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:15:02,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:15:02,927 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 06:15:02,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-16 06:15:03,006 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 06:15:03,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-16 06:15:04,092 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 06:15:04,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 37 [2022-11-16 06:15:04,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 06:15:06,716 INFO L321 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2022-11-16 06:15:06,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 37 [2022-11-16 06:15:07,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 06:15:08,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:15:09,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:15:09,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:15:11,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 22 [2022-11-16 06:15:11,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:15:11,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:15:17,274 WARN L833 $PredicateComparison]: unable to prove that (or (not (<= 0 c_~q1_back~0)) (not (< c_~q2_back~0 c_~n2~0)) (not (< c_~q1_back~0 c_~n1~0)) (< (+ 1 |c_ULTIMATE.start_create_fresh_int_array_~i~1#1|) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (let ((.cse1 (* c_~t~0 2)) (.cse3 (* c_~q2_front~0 4)) (.cse6 (+ (* c_~q1_back~0 4) c_~q1~0.offset)) (.cse7 (+ (* c_~q1_front~0 4) c_~q1~0.offset)) (.cse9 (* c_~q2_back~0 4)) (.cse10 (select |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse11 (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~1#1|))) (and (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| Int) (v_ArrVal_99 (Array Int Int)) (v_ArrVal_98 Int) (v_ArrVal_100 (Array Int Int)) (v_ArrVal_101 (Array Int Int))) (let ((.cse8 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store .cse10 (+ .cse11 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_98)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_99) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_100) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_101))) (let ((.cse2 (select .cse8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (let ((.cse4 (select .cse2 (+ .cse9 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (let ((.cse5 (select .cse8 c_~q1~0.base)) (.cse0 (+ .cse4 1))) (or (not (<= .cse0 0)) (< (+ .cse1 (* 2 (select .cse2 (+ .cse3 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (+ c_~s~0 .cse4)) (not (= (select .cse5 .cse6) 0)) (not (<= (select .cse5 .cse7) .cse0)))))))) (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| Int) (v_ArrVal_99 (Array Int Int)) (v_ArrVal_98 Int) (v_ArrVal_100 (Array Int Int)) (v_ArrVal_101 (Array Int Int))) (let ((.cse16 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store .cse10 (+ .cse11 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_98)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_99) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_100) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_101))) (let ((.cse14 (select .cse16 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (let ((.cse13 (select .cse14 (+ .cse9 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (let ((.cse15 (select .cse16 c_~q1~0.base)) (.cse12 (+ .cse13 1))) (or (not (<= .cse12 0)) (<= (+ c_~s~0 .cse13) (+ .cse1 (* 2 (select .cse14 (+ .cse3 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) 1)) (not (= (select .cse15 .cse6) 0)) (not (<= (select .cse15 .cse7) .cse12)))))))))) (not (<= 0 c_~q2_back~0))) is different from false [2022-11-16 06:15:37,491 INFO L321 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-11-16 06:15:37,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 346 treesize of output 172 [2022-11-16 06:15:37,680 INFO L321 Elim1Store]: treesize reduction 4, result has 97.5 percent of original size [2022-11-16 06:15:37,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62574 treesize of output 58404 [2022-11-16 06:15:37,949 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:15:37,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58224 treesize of output 45352 [2022-11-16 06:15:38,202 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:15:38,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45264 treesize of output 38872 [2022-11-16 06:15:38,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:15:38,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38784 treesize of output 35632 [2022-11-16 06:17:23,838 INFO L321 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-11-16 06:17:23,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 347 treesize of output 173 [2022-11-16 06:17:24,070 INFO L321 Elim1Store]: treesize reduction 4, result has 97.5 percent of original size [2022-11-16 06:17:24,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 8518 treesize of output 8092 [2022-11-16 06:17:24,183 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:17:24,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 7912 treesize of output 7136 [2022-11-16 06:17:24,290 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:17:24,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 7048 treesize of output 5408 [2022-11-16 06:17:24,421 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:17:24,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 5150 treesize of output 4806 [2022-11-16 06:18:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-16 06:18:53,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823129423] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:18:53,083 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:18:53,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 43, 43] total 111 [2022-11-16 06:18:53,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32078587] [2022-11-16 06:18:53,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:18:53,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2022-11-16 06:18:53,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:18:53,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2022-11-16 06:18:53,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1671, Invalid=10229, Unknown=94, NotChecked=216, Total=12210 [2022-11-16 06:18:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:18:53,090 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:18:53,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 4.126126126126126) internal successors, (458), 111 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:18:53,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:18:53,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:18:53,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:18:53,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-16 06:19:08,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:08,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-16 06:19:08,901 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:08,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:08,902 INFO L85 PathProgramCache]: Analyzing trace with hash 393209203, now seen corresponding path program 1 times [2022-11-16 06:19:08,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:08,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130760306] [2022-11-16 06:19:08,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:08,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:09,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:09,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130760306] [2022-11-16 06:19:09,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130760306] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:09,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144618166] [2022-11-16 06:19:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:09,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:09,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:09,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:09,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 06:19:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:09,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 06:19:09,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 06:19:10,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 06:19:10,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144618166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:19:10,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 06:19:10,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 12 [2022-11-16 06:19:10,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579530473] [2022-11-16 06:19:10,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:19:10,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 06:19:10,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:19:10,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 06:19:10,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-16 06:19:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:10,330 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:19:10,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 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) [2022-11-16 06:19:10,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:10,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:10,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:10,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-11-16 06:19:10,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-16 06:19:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:10,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:10,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:10,777 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash -215920702, now seen corresponding path program 1 times [2022-11-16 06:19:10,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:10,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965052524] [2022-11-16 06:19:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:10,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:11,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:11,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965052524] [2022-11-16 06:19:11,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965052524] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:11,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272836215] [2022-11-16 06:19:11,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:11,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:11,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:11,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:11,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 06:19:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:11,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 06:19:11,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:11,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:19:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:12,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272836215] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:19:12,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:19:12,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-16 06:19:12,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765634025] [2022-11-16 06:19:12,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:19:12,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 06:19:12,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:19:12,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 06:19:12,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-11-16 06:19:12,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:12,211 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:19:12,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.473684210526315) internal successors, (237), 19 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:19:12,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:12,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:12,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:12,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-11-16 06:19:12,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:12,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-16 06:19:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:13,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:13,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:13,556 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:13,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:13,556 INFO L85 PathProgramCache]: Analyzing trace with hash -764309708, now seen corresponding path program 1 times [2022-11-16 06:19:13,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:13,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674350537] [2022-11-16 06:19:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:13,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:13,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:13,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:13,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674350537] [2022-11-16 06:19:13,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674350537] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:13,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583670081] [2022-11-16 06:19:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:13,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:13,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:13,836 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:13,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 06:19:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:13,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 06:19:13,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:14,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:19:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:14,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583670081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:19:14,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:19:14,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-16 06:19:14,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627871340] [2022-11-16 06:19:14,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:19:14,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 06:19:14,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:19:14,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 06:19:14,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-11-16 06:19:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:14,551 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:19:14,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:19:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-11-16 06:19:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:14,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:14,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-16 06:19:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 06:19:15,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:15,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:15,381 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:15,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1126810181, now seen corresponding path program 2 times [2022-11-16 06:19:15,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:15,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617066097] [2022-11-16 06:19:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:15,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:19:19,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:19,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617066097] [2022-11-16 06:19:19,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617066097] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:19,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431709152] [2022-11-16 06:19:19,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 06:19:19,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:19,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:19,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 06:19:19,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 06:19:19,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 06:19:19,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-16 06:19:19,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:19,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:19:19,669 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 06:19:19,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 06:19:19,720 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 06:19:19,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 06:19:20,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 06:19:20,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:19:21,044 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 06:19:21,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2022-11-16 06:19:21,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-16 06:19:21,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2022-11-16 06:19:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 06:19:21,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 06:19:21,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431709152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:19:21,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 06:19:21,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [40] total 53 [2022-11-16 06:19:21,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041328674] [2022-11-16 06:19:21,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:19:21,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 06:19:21,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:19:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 06:19:21,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=2561, Unknown=0, NotChecked=0, Total=2756 [2022-11-16 06:19:21,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:21,415 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:19:21,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.0) internal successors, (171), 19 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:19:21,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:21,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:21,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:21,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-11-16 06:19:21,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:21,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:21,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-16 06:19:21,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-16 06:19:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 06:19:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:19:22,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:22,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:22,494 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:22,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:22,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1659914133, now seen corresponding path program 3 times [2022-11-16 06:19:22,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:22,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055728555] [2022-11-16 06:19:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:22,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:19:26,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:26,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055728555] [2022-11-16 06:19:26,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055728555] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:26,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626462004] [2022-11-16 06:19:26,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 06:19:26,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:26,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:26,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:26,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 06:19:27,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 06:19:27,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 06:19:27,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-16 06:19:27,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:30,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:19:30,015 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 06:19:30,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 49 [2022-11-16 06:19:30,041 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-11-16 06:19:30,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-16 06:19:30,509 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-11-16 06:19:30,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2022-11-16 06:19:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 06:19:30,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 06:19:30,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626462004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:19:30,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 06:19:30,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [40] total 52 [2022-11-16 06:19:30,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140643863] [2022-11-16 06:19:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:19:30,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 06:19:30,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:19:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 06:19:30,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=2424, Unknown=0, NotChecked=0, Total=2652 [2022-11-16 06:19:30,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:30,692 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:19:30,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.142857142857142) internal successors, (171), 21 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:19:30,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:30,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-11-16 06:19:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-16 06:19:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:19:30,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:35,842 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (not (<= 0 c_~q1_back~0))) (.cse1 (not (< c_~q2_back~0 c_~n2~0))) (.cse2 (not (< c_~q1_back~0 c_~n1~0))) (.cse5 (* c_~t~0 2)) (.cse7 (* c_~q2_front~0 4)) (.cse4 (+ (* c_~q1_back~0 4) c_~q1~0.offset)) (.cse10 (+ (* c_~q1_front~0 4) c_~q1~0.offset)) (.cse12 (* c_~q2_back~0 4)) (.cse13 (select |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse19 (not (<= 0 c_~q2_back~0)))) (and (or .cse0 .cse1 .cse2 (and (forall ((|v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| Int)) (or (not (<= |v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| 0)) (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| Int) (v_ArrVal_99 (Array Int Int)) (v_ArrVal_98 Int) (v_ArrVal_100 (Array Int Int)) (v_ArrVal_101 (Array Int Int))) (let ((.cse11 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store .cse13 (+ (* |v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| 4) |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_98)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_99) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_100) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_101))) (let ((.cse6 (select .cse11 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (let ((.cse8 (select .cse6 (+ .cse12 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (let ((.cse3 (select .cse11 c_~q1~0.base)) (.cse9 (+ .cse8 1))) (or (not (= (select .cse3 .cse4) 0)) (< (+ .cse5 (* (select .cse6 (+ .cse7 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 2)) (+ c_~s~0 .cse8)) (not (<= .cse9 0)) (not (<= (select .cse3 .cse10) .cse9)))))))) (< (+ |v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| 1) |c_ULTIMATE.start_create_fresh_int_array_~size#1|))) (forall ((|v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| Int)) (or (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| Int) (v_ArrVal_99 (Array Int Int)) (v_ArrVal_98 Int) (v_ArrVal_100 (Array Int Int)) (v_ArrVal_101 (Array Int Int))) (let ((.cse18 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store .cse13 (+ (* |v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| 4) |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_98)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_99) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_100) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_101))) (let ((.cse17 (select .cse18 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (let ((.cse16 (select .cse17 (+ .cse12 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (let ((.cse14 (select .cse18 c_~q1~0.base)) (.cse15 (+ .cse16 1))) (or (not (= (select .cse14 .cse4) 0)) (not (<= .cse15 0)) (not (<= (select .cse14 .cse10) .cse15)) (<= (+ c_~s~0 .cse16) (+ .cse5 (* (select .cse17 (+ .cse7 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 2) 1)))))))) (not (<= |v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| 0)) (< (+ |v_ULTIMATE.start_create_fresh_int_array_~i~1#1_16| 1) |c_ULTIMATE.start_create_fresh_int_array_~size#1|)))) .cse19) (or .cse0 .cse1 .cse2 (< (+ 1 |c_ULTIMATE.start_create_fresh_int_array_~i~1#1|) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (let ((.cse25 (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~1#1|))) (and (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| Int) (v_ArrVal_99 (Array Int Int)) (v_ArrVal_98 Int) (v_ArrVal_100 (Array Int Int)) (v_ArrVal_101 (Array Int Int))) (let ((.cse24 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store .cse13 (+ .cse25 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_98)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_99) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_100) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_101))) (let ((.cse21 (select .cse24 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (let ((.cse22 (select .cse21 (+ .cse12 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (let ((.cse23 (select .cse24 c_~q1~0.base)) (.cse20 (+ .cse22 1))) (or (not (<= .cse20 0)) (< (+ .cse5 (* 2 (select .cse21 (+ .cse7 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (+ c_~s~0 .cse22)) (not (= (select .cse23 .cse4) 0)) (not (<= (select .cse23 .cse10) .cse20)))))))) (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| Int) (v_ArrVal_99 (Array Int Int)) (v_ArrVal_98 Int) (v_ArrVal_100 (Array Int Int)) (v_ArrVal_101 (Array Int Int))) (let ((.cse30 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store .cse13 (+ .cse25 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_98)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_99) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_100) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_101))) (let ((.cse28 (select .cse30 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (let ((.cse27 (select .cse28 (+ .cse12 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (let ((.cse29 (select .cse30 c_~q1~0.base)) (.cse26 (+ .cse27 1))) (or (not (<= .cse26 0)) (<= (+ c_~s~0 .cse27) (+ .cse5 (* 2 (select .cse28 (+ .cse7 |ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) 1)) (not (= (select .cse29 .cse4) 0)) (not (<= (select .cse29 .cse10) .cse26)))))))))) .cse19))) is different from false [2022-11-16 06:19:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:19:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:19:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:19:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:19:38,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:38,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:38,758 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:38,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:38,758 INFO L85 PathProgramCache]: Analyzing trace with hash 900918372, now seen corresponding path program 2 times [2022-11-16 06:19:38,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:38,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430988500] [2022-11-16 06:19:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:38,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:39,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:39,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430988500] [2022-11-16 06:19:39,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430988500] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:39,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129070295] [2022-11-16 06:19:39,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 06:19:39,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:39,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:39,932 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:39,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 06:19:40,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 06:19:40,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 06:19:40,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-16 06:19:40,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:41,039 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-11-16 06:19:41,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-11-16 06:19:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:41,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:19:41,242 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-11-16 06:19:41,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2022-11-16 06:19:42,106 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:19:42,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129070295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:19:42,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:19:42,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 14] total 41 [2022-11-16 06:19:42,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976101408] [2022-11-16 06:19:42,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:19:42,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-16 06:19:42,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:19:42,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-16 06:19:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1343, Unknown=0, NotChecked=0, Total=1640 [2022-11-16 06:19:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:42,112 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:19:42,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 10.926829268292684) internal successors, (448), 41 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:19:42,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:19:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:19:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:19:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:19:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 06:19:45,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:45,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 06:19:45,329 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:45,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:45,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1649871504, now seen corresponding path program 3 times [2022-11-16 06:19:45,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:45,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694565664] [2022-11-16 06:19:45,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:45,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 06:19:45,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:45,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694565664] [2022-11-16 06:19:45,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694565664] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:45,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325564642] [2022-11-16 06:19:45,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 06:19:45,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:45,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:45,657 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:45,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 06:19:45,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 06:19:45,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 06:19:45,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 06:19:45,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:46,150 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:19:46,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 21 [2022-11-16 06:19:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 06:19:46,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:19:46,407 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-11-16 06:19:46,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2022-11-16 06:19:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 06:19:46,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325564642] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:19:46,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:19:46,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 30 [2022-11-16 06:19:46,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991434488] [2022-11-16 06:19:46,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:19:46,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-16 06:19:46,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:19:46,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-16 06:19:46,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=709, Unknown=0, NotChecked=0, Total=870 [2022-11-16 06:19:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:46,696 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:19:46,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.233333333333333) internal successors, (277), 30 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:19:46,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:19:46,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:19:46,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-11-16 06:19:46,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:49,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:19:49,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:19:49,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 06:19:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:19:49,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 06:19:49,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:49,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:19:49,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:19:49,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2006071289, now seen corresponding path program 4 times [2022-11-16 06:19:49,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:19:49,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403075750] [2022-11-16 06:19:49,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:19:49,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:19:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:19:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:19:57,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:19:57,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403075750] [2022-11-16 06:19:57,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403075750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:19:57,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803337730] [2022-11-16 06:19:57,527 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 06:19:57,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:19:57,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:19:57,532 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:19:57,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 06:19:57,652 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 06:19:57,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 06:19:57,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-16 06:19:57,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:19:59,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 06:20:01,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:20:01,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 06:20:01,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:20:01,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 06:20:02,188 INFO L321 Elim1Store]: treesize reduction 3, result has 85.0 percent of original size [2022-11-16 06:20:02,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 34 [2022-11-16 06:20:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 06:20:02,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:20:03,543 WARN L833 $PredicateComparison]: unable to prove that (or (not (< c_~q2_back~0 c_~n2~0)) (let ((.cse3 (* c_~t~0 2)) (.cse5 (+ c_~q2~0.offset (* c_~q2_front~0 4))) (.cse2 (* c_~q1_front~0 4)) (.cse6 (+ (* c_~q2_back~0 4) c_~q2~0.offset)) (.cse8 (* c_~q1_back~0 4))) (and (forall ((~q1~0.offset Int) (v_ArrVal_444 (Array Int Int))) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_444))) (or (forall ((v_ArrVal_445 (Array Int Int))) (let ((.cse1 (store .cse7 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_445))) (let ((.cse4 (select .cse1 c_~q2~0.base))) (let ((.cse0 (select .cse4 .cse6))) (or (not (= (+ .cse0 1) (select (select .cse1 c_~q1~0.base) (+ .cse2 ~q1~0.offset)))) (<= (+ c_~s~0 .cse0) (+ .cse3 (* (select .cse4 .cse5) 2) 1))))))) (not (= (select (select .cse7 c_~q1~0.base) (+ .cse8 ~q1~0.offset)) 0))))) (forall ((~q1~0.offset Int) (v_ArrVal_444 (Array Int Int))) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_444))) (or (forall ((v_ArrVal_445 (Array Int Int))) (let ((.cse11 (store .cse12 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_445))) (let ((.cse9 (select .cse11 c_~q2~0.base))) (let ((.cse10 (select .cse9 .cse6))) (or (< (+ .cse3 (* (select .cse9 .cse5) 2)) (+ c_~s~0 .cse10)) (not (= (+ .cse10 1) (select (select .cse11 c_~q1~0.base) (+ .cse2 ~q1~0.offset))))))))) (not (= (select (select .cse12 c_~q1~0.base) (+ .cse8 ~q1~0.offset)) 0))))))) (not (<= 0 c_~q2_back~0))) is different from false [2022-11-16 06:20:07,299 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:20:07,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 116 [2022-11-16 06:20:07,459 INFO L321 Elim1Store]: treesize reduction 4, result has 96.0 percent of original size [2022-11-16 06:20:07,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 16788 treesize of output 15724 [2022-11-16 06:20:07,595 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:20:07,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 15564 treesize of output 12152 [2022-11-16 06:20:07,793 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:20:07,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 11362 treesize of output 10580 [2022-11-16 06:20:07,914 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:20:07,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 11302 treesize of output 9650 [2022-11-16 06:24:07,987 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:24:07,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 165 treesize of output 117 [2022-11-16 06:24:07,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 06:24:08,039 INFO L321 Elim1Store]: treesize reduction 77, result has 23.8 percent of original size [2022-11-16 06:24:08,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2444 treesize of output 2235 [2022-11-16 06:24:08,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:08,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:08,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:24:08,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 1969 treesize of output 1803 [2022-11-16 06:24:08,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:08,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:08,105 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:24:08,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 2022 treesize of output 1674 [2022-11-16 06:24:08,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:08,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1612 treesize of output 1292 [2022-11-16 06:24:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 06:24:13,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803337730] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:24:13,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:24:13,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 36, 33] total 101 [2022-11-16 06:24:13,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099946773] [2022-11-16 06:24:13,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:24:13,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-16 06:24:13,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:24:13,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-16 06:24:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=619, Invalid=9225, Unknown=60, NotChecked=196, Total=10100 [2022-11-16 06:24:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:13,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:24:13,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 4.603960396039604) internal successors, (465), 101 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:24:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:24:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:24:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:24:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:24:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:24:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:24:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:24:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:24:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-16 06:24:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:24:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-16 06:24:32,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 06:24:32,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 06:24:32,825 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:24:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:24:32,825 INFO L85 PathProgramCache]: Analyzing trace with hash -29405362, now seen corresponding path program 4 times [2022-11-16 06:24:32,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:24:32,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252399596] [2022-11-16 06:24:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:24:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:24:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:24:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:24:33,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:24:33,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252399596] [2022-11-16 06:24:33,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252399596] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:24:33,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893754414] [2022-11-16 06:24:33,875 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 06:24:33,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:24:33,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:24:33,880 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:24:33,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 06:24:34,023 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 06:24:34,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 06:24:34,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-16 06:24:34,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:24:35,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:35,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 06:24:35,265 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-11-16 06:24:35,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-11-16 06:24:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:24:35,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:24:35,492 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:24:35,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 38 [2022-11-16 06:24:35,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-16 06:24:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:24:36,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893754414] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:24:36,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:24:36,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 21] total 56 [2022-11-16 06:24:36,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274504230] [2022-11-16 06:24:36,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:24:36,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-16 06:24:36,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:24:36,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-16 06:24:36,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=2821, Unknown=8, NotChecked=0, Total=3080 [2022-11-16 06:24:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:36,965 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:24:36,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 7.607142857142857) internal successors, (426), 56 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:24:36,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-11-16 06:24:36,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-16 06:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-16 06:24:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-16 06:24:43,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 06:24:43,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 06:24:43,255 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:24:43,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:24:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1410877206, now seen corresponding path program 5 times [2022-11-16 06:24:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:24:43,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214397361] [2022-11-16 06:24:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:24:43,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:24:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:24:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 06:24:44,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:24:44,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214397361] [2022-11-16 06:24:44,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214397361] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:24:44,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621433627] [2022-11-16 06:24:44,501 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 06:24:44,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:24:44,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:24:44,502 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:24:44,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 06:24:44,611 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 06:24:44,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 06:24:44,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-16 06:24:44,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:24:45,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:45,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 06:24:45,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 06:24:45,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-16 06:24:45,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-11-16 06:24:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 06:24:45,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:24:45,611 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_536 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_536) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)))) is different from false [2022-11-16 06:24:45,712 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:24:45,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 76 [2022-11-16 06:24:45,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-16 06:24:45,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-11-16 06:24:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 06:24:46,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621433627] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:24:46,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:24:46,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 14] total 48 [2022-11-16 06:24:46,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453620868] [2022-11-16 06:24:46,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:24:46,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-16 06:24:46,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:24:46,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-16 06:24:46,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=2009, Unknown=7, NotChecked=90, Total=2256 [2022-11-16 06:24:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:46,506 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:24:46,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 9.416666666666666) internal successors, (452), 48 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-11-16 06:24:46,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:24:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:24:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-16 06:24:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-16 06:24:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 06:24:51,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 06:24:51,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 06:24:51,952 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:24:51,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:24:51,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1293711554, now seen corresponding path program 1 times [2022-11-16 06:24:51,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:24:51,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791922560] [2022-11-16 06:24:51,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:24:51,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:24:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:24:54,718 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:24:54,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:24:54,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791922560] [2022-11-16 06:24:54,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791922560] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:24:54,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193382705] [2022-11-16 06:24:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:24:54,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:24:54,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:24:54,721 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:24:54,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 06:24:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:24:54,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-16 06:24:54,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:24:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:24:57,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:24:58,612 INFO L321 Elim1Store]: treesize reduction 4, result has 97.4 percent of original size [2022-11-16 06:24:58,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 173 [2022-11-16 06:25:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:25:01,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193382705] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 06:25:01,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 06:25:01,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 29, 27] total 90 [2022-11-16 06:25:01,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722928407] [2022-11-16 06:25:01,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 06:25:01,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-11-16 06:25:01,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:25:01,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-11-16 06:25:01,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1066, Invalid=6944, Unknown=0, NotChecked=0, Total=8010 [2022-11-16 06:25:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:25:01,761 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:25:01,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 5.677777777777778) internal successors, (511), 90 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 06:25:01,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:25:01,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-11-16 06:25:01,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-16 06:25:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 06:25:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-16 06:25:26,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 06:25:26,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 06:25:26,570 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:25:26,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:25:26,570 INFO L85 PathProgramCache]: Analyzing trace with hash -295217700, now seen corresponding path program 1 times [2022-11-16 06:25:26,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:25:26,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961584502] [2022-11-16 06:25:26,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:25:26,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:25:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:25:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:25:31,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:25:31,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961584502] [2022-11-16 06:25:31,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961584502] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:25:31,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638446120] [2022-11-16 06:25:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:25:31,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:25:31,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:25:31,190 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 06:25:31,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 06:25:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:25:31,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 89 conjunts are in the unsatisfiable core [2022-11-16 06:25:31,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:25:36,840 INFO L321 Elim1Store]: treesize reduction 380, result has 14.6 percent of original size [2022-11-16 06:25:36,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 94 [2022-11-16 06:25:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 06:25:37,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:25:40,377 INFO L321 Elim1Store]: treesize reduction 158, result has 84.2 percent of original size [2022-11-16 06:25:40,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 249 treesize of output 933 [2022-11-16 06:25:46,571 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:25:46,683 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 06:25:54,028 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:26:01,966 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:26:09,629 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:26:13,364 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:26:24,440 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:26:38,485 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:05,859 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:14,549 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:21,252 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:27,355 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:34,152 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:36,930 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:38,984 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:39,654 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-16 06:27:44,090 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:54,105 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:54,239 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:54,476 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:54,529 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:55,530 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:27:58,977 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:00,074 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:00,278 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:09,072 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:09,663 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:09,776 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:09,977 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:10,162 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:10,370 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:10,498 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:10,597 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:10,686 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:10,812 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:10,982 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:11,056 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:11,213 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:11,506 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:18,322 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-16 06:28:18,543 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. Received shutdown request... [2022-11-16 06:28:18,686 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 06:28:18,687 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-11-16 06:28:18,687 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 06:28:18,689 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 06:28:18,693 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 06:28:18,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 06:28:18,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:28:18,890 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 200 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-11-16 06:28:18,897 INFO L444 BasicCegarLoop]: Path program histogram: [5, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 06:28:18,899 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/4) [2022-11-16 06:28:18,900 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 06:28:18,900 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 06:28:18,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 06:28:18 BasicIcfg [2022-11-16 06:28:18,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 06:28:18,903 INFO L158 Benchmark]: Toolchain (without parser) took 809265.31ms. Allocated memory was 185.6MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 129.1MB in the beginning and 978.8MB in the end (delta: -849.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-11-16 06:28:18,903 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 145.8MB in the beginning and 145.7MB in the end (delta: 75.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-11-16 06:28:18,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.16ms. Allocated memory is still 185.6MB. Free memory was 128.9MB in the beginning and 158.6MB in the end (delta: -29.8MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. [2022-11-16 06:28:18,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.19ms. Allocated memory is still 185.6MB. Free memory was 158.4MB in the beginning and 156.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-16 06:28:18,904 INFO L158 Benchmark]: Boogie Preprocessor took 67.48ms. Allocated memory is still 185.6MB. Free memory was 156.0MB in the beginning and 154.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-16 06:28:18,904 INFO L158 Benchmark]: RCFGBuilder took 1344.24ms. Allocated memory is still 185.6MB. Free memory was 154.2MB in the beginning and 120.4MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-11-16 06:28:18,905 INFO L158 Benchmark]: TraceAbstraction took 807176.22ms. Allocated memory was 185.6MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 119.8MB in the beginning and 978.8MB in the end (delta: -859.0MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-11-16 06:28:18,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 145.8MB in the beginning and 145.7MB in the end (delta: 75.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 579.16ms. Allocated memory is still 185.6MB. Free memory was 128.9MB in the beginning and 158.6MB in the end (delta: -29.8MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 88.19ms. Allocated memory is still 185.6MB. Free memory was 158.4MB in the beginning and 156.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.48ms. Allocated memory is still 185.6MB. Free memory was 156.0MB in the beginning and 154.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1344.24ms. Allocated memory is still 185.6MB. Free memory was 154.2MB in the beginning and 120.4MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 807176.22ms. Allocated memory was 185.6MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 119.8MB in the beginning and 978.8MB in the end (delta: -859.0MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 942910, independent: 775355, independent conditional: 772705, independent unconditional: 2650, dependent: 167552, dependent conditional: 167524, dependent unconditional: 28, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 777212, independent: 775355, independent conditional: 772705, independent unconditional: 2650, dependent: 1854, dependent conditional: 1826, dependent unconditional: 28, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 777212, independent: 775355, independent conditional: 772705, independent unconditional: 2650, dependent: 1854, dependent conditional: 1826, dependent unconditional: 28, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 797551, independent: 775355, independent conditional: 4304, independent unconditional: 771051, dependent: 22184, dependent conditional: 16023, dependent unconditional: 6161, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 797551, independent: 775355, independent conditional: 4304, independent unconditional: 771051, dependent: 22184, dependent conditional: 8067, dependent unconditional: 14117, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 797551, independent: 775355, independent conditional: 4304, independent unconditional: 771051, dependent: 22184, dependent conditional: 8067, dependent unconditional: 14117, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2701, independent: 2322, independent conditional: 161, independent unconditional: 2161, dependent: 377, dependent conditional: 349, dependent unconditional: 28, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2701, independent: 2158, independent conditional: 0, independent unconditional: 2158, dependent: 543, dependent conditional: 0, dependent unconditional: 543, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 543, independent: 164, independent conditional: 161, independent unconditional: 3, dependent: 377, dependent conditional: 349, dependent unconditional: 28, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 543, independent: 164, independent conditional: 161, independent unconditional: 3, dependent: 377, dependent conditional: 349, dependent unconditional: 28, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1605, independent: 459, independent conditional: 420, independent unconditional: 39, dependent: 1139, dependent conditional: 945, dependent unconditional: 194, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 797551, independent: 773033, independent conditional: 4143, independent unconditional: 768890, dependent: 21807, dependent conditional: 7718, dependent unconditional: 14089, unknown: 2711, unknown conditional: 522, unknown unconditional: 2189] , Statistics on independence cache: Total cache size (in pairs): 2699, Positive cache size: 2322, Positive conditional cache size: 161, Positive unconditional cache size: 2161, Negative cache size: 377, Negative conditional cache size: 349, Negative unconditional cache size: 28, Unknown cache size: 2, Unknown conditional cache size: 2, Unknown unconditional cache size: 0, Eliminated conditions: 7956, Maximal queried relation: 13, Independence queries for same thread: 165698 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.7s, Number of persistent set computation: 3394, Number of trivial persistent sets: 2903, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2678, independent: 2650, independent conditional: 0, independent unconditional: 2650, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 942910, independent: 775355, independent conditional: 772705, independent unconditional: 2650, dependent: 167552, dependent conditional: 167524, dependent unconditional: 28, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 777212, independent: 775355, independent conditional: 772705, independent unconditional: 2650, dependent: 1854, dependent conditional: 1826, dependent unconditional: 28, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 777212, independent: 775355, independent conditional: 772705, independent unconditional: 2650, dependent: 1854, dependent conditional: 1826, dependent unconditional: 28, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 797551, independent: 775355, independent conditional: 4304, independent unconditional: 771051, dependent: 22184, dependent conditional: 16023, dependent unconditional: 6161, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 797551, independent: 775355, independent conditional: 4304, independent unconditional: 771051, dependent: 22184, dependent conditional: 8067, dependent unconditional: 14117, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 797551, independent: 775355, independent conditional: 4304, independent unconditional: 771051, dependent: 22184, dependent conditional: 8067, dependent unconditional: 14117, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2701, independent: 2322, independent conditional: 161, independent unconditional: 2161, dependent: 377, dependent conditional: 349, dependent unconditional: 28, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2701, independent: 2158, independent conditional: 0, independent unconditional: 2158, dependent: 543, dependent conditional: 0, dependent unconditional: 543, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 543, independent: 164, independent conditional: 161, independent unconditional: 3, dependent: 377, dependent conditional: 349, dependent unconditional: 28, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 543, independent: 164, independent conditional: 161, independent unconditional: 3, dependent: 377, dependent conditional: 349, dependent unconditional: 28, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1605, independent: 459, independent conditional: 420, independent unconditional: 39, dependent: 1139, dependent conditional: 945, dependent unconditional: 194, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 797551, independent: 773033, independent conditional: 4143, independent unconditional: 768890, dependent: 21807, dependent conditional: 7718, dependent unconditional: 14089, unknown: 2711, unknown conditional: 522, unknown unconditional: 2189] , Statistics on independence cache: Total cache size (in pairs): 2699, Positive cache size: 2322, Positive conditional cache size: 161, Positive unconditional cache size: 2161, Negative cache size: 377, Negative conditional cache size: 349, Negative unconditional cache size: 28, Unknown cache size: 2, Unknown conditional cache size: 2, Unknown unconditional cache size: 0, Eliminated conditions: 7956, Maximal queried relation: 13, Independence queries for same thread: 165698 - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 200 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 7 procedures, 224 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 806.9s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 88.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 706, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 539.7s InterpolantComputationTime, 4787 NumberOfCodeBlocks, 4752 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 6389 ConstructedInterpolants, 234 QuantifiedInterpolants, 156072 SizeOfPredicates, 270 NumberOfNonLiveVariables, 5122 ConjunctsInSsa, 466 ConjunctsInUnsatCore, 36 InterpolantComputations, 6 PerfectInterpolantSequences, 119/342 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 could not prove your program: Timeout Completed graceful shutdown