/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 07:13:31,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 07:13:31,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 07:13:31,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 07:13:31,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 07:13:31,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 07:13:31,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 07:13:31,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 07:13:31,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 07:13:31,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 07:13:31,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 07:13:31,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 07:13:31,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 07:13:31,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 07:13:31,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 07:13:31,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 07:13:31,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 07:13:31,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 07:13:31,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 07:13:31,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 07:13:31,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 07:13:31,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 07:13:31,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 07:13:31,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 07:13:31,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-09 07:13:31,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-09 07:13:31,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-09 07:13:32,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-09 07:13:32,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-09 07:13:32,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-09 07:13:32,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 07:13:32,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 07:13:32,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 07:13:32,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 07:13:32,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 07:13:32,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 07:13:32,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 07:13:32,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 07:13:32,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 07:13:32,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 07:13:32,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 07:13:32,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2022-02-09 07:13:32,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 07:13:32,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 07:13:32,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 07:13:32,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 07:13:32,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 07:13:32,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 07:13:32,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 07:13:32,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 07:13:32,060 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 07:13:32,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 07:13:32,061 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 07:13:32,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 07:13:32,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 07:13:32,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 07:13:32,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 07:13:32,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 07:13:32,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 07:13:32,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 07:13:32,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 07:13:32,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 07:13:32,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 07:13:32,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 07:13:32,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 07:13:32,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 07:13:32,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 07:13:32,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 07:13:32,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 07:13:32,065 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 07:13:32,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 07:13:32,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 07:13:32,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 07:13:32,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 07:13:32,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 07:13:32,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 07:13:32,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 07:13:32,066 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-09 07:13:32,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 07:13:32,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 07:13:32,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 07:13:32,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 07:13:32,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 07:13:32,406 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 07:13:32,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2022-02-09 07:13:32,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e74e73cf9/b3c94651765a4a7184aaaceb9272914a/FLAG7de3e7ba6 [2022-02-09 07:13:32,889 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 07:13:32,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2022-02-09 07:13:32,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e74e73cf9/b3c94651765a4a7184aaaceb9272914a/FLAG7de3e7ba6 [2022-02-09 07:13:33,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e74e73cf9/b3c94651765a4a7184aaaceb9272914a [2022-02-09 07:13:33,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 07:13:33,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 07:13:33,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 07:13:33,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 07:13:33,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 07:13:33,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be8d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33, skipping insertion in model container [2022-02-09 07:13:33,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 07:13:33,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 07:13:33,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c[3056,3069] [2022-02-09 07:13:33,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 07:13:33,503 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 07:13:33,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c[3056,3069] [2022-02-09 07:13:33,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 07:13:33,544 INFO L208 MainTranslator]: Completed translation [2022-02-09 07:13:33,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33 WrapperNode [2022-02-09 07:13:33,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 07:13:33,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 07:13:33,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 07:13:33,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 07:13:33,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,582 INFO L137 Inliner]: procedures = 25, calls = 50, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 166 [2022-02-09 07:13:33,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 07:13:33,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 07:13:33,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 07:13:33,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 07:13:33,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 07:13:33,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 07:13:33,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 07:13:33,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 07:13:33,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (1/1) ... [2022-02-09 07:13:33,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 07:13:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:33,654 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) [2022-02-09 07:13:33,667 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 [2022-02-09 07:13:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 07:13:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 07:13:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 07:13:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 07:13:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 07:13:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 07:13:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 07:13:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 07:13:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 07:13:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 07:13:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 07:13:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 07:13:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 07:13:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-09 07:13:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 07:13:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 07:13:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 07:13:33,721 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 07:13:33,800 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 07:13:33,801 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 07:13:34,114 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 07:13:34,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 07:13:34,165 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-09 07:13:34,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:13:34 BoogieIcfgContainer [2022-02-09 07:13:34,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 07:13:34,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 07:13:34,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 07:13:34,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 07:13:34,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 07:13:33" (1/3) ... [2022-02-09 07:13:34,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dc7b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:13:34, skipping insertion in model container [2022-02-09 07:13:34,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:13:33" (2/3) ... [2022-02-09 07:13:34,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dc7b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:13:34, skipping insertion in model container [2022-02-09 07:13:34,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:13:34" (3/3) ... [2022-02-09 07:13:34,172 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons.wvr.c [2022-02-09 07:13:34,176 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 07:13:34,176 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 07:13:34,176 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 07:13:34,176 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 07:13:34,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,219 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,225 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,225 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,225 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~temp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:13:34,232 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 07:13:34,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 07:13:34,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:34,277 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) [2022-02-09 07:13:34,278 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 [2022-02-09 07:13:34,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 07:13:34,300 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 07:13:34,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 07:13:34,379 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:34,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:34,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1466895868, now seen corresponding path program 1 times [2022-02-09 07:13:34,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:34,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546600648] [2022-02-09 07:13:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:34,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:34,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:34,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546600648] [2022-02-09 07:13:34,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546600648] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:13:34,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:13:34,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 07:13:34,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506672806] [2022-02-09 07:13:34,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:13:34,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 07:13:34,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:34,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 07:13:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 07:13:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:34,551 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:34,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:34,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:34,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:34,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 07:13:34,595 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:34,596 INFO L85 PathProgramCache]: Analyzing trace with hash -327021883, now seen corresponding path program 1 times [2022-02-09 07:13:34,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:34,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691815234] [2022-02-09 07:13:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:34,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:34,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:34,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691815234] [2022-02-09 07:13:34,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691815234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:13:34,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:13:34,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 07:13:34,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271941638] [2022-02-09 07:13:34,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:13:34,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 07:13:34,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:34,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 07:13:34,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 07:13:34,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:34,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:34,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:34,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 07:13:34,884 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:34,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:34,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1392779178, now seen corresponding path program 1 times [2022-02-09 07:13:34,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:34,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936847793] [2022-02-09 07:13:34,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:34,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:35,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:35,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936847793] [2022-02-09 07:13:35,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936847793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:13:35,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:13:35,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 07:13:35,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443757114] [2022-02-09 07:13:35,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:13:35,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 07:13:35,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 07:13:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 07:13:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,083 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:35,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:35,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:35,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:35,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:35,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 07:13:35,123 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash -709519171, now seen corresponding path program 2 times [2022-02-09 07:13:35,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:35,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462713004] [2022-02-09 07:13:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:35,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:35,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:35,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462713004] [2022-02-09 07:13:35,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462713004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:13:35,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:13:35,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-09 07:13:35,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807512811] [2022-02-09 07:13:35,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:13:35,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 07:13:35,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:35,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 07:13:35,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-02-09 07:13:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,371 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:35,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:35,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:35,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:35,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:35,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 07:13:35,627 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:35,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:35,629 INFO L85 PathProgramCache]: Analyzing trace with hash -590908166, now seen corresponding path program 1 times [2022-02-09 07:13:35,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:35,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587442092] [2022-02-09 07:13:35,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:35,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 07:13:35,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:35,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587442092] [2022-02-09 07:13:35,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587442092] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:13:35,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:13:35,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 07:13:35,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104660913] [2022-02-09 07:13:35,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:13:35,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 07:13:35,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:35,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 07:13:35,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-09 07:13:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,795 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:35,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:35,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:35,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:35,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:35,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:13:35,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 07:13:35,966 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:35,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash 372859714, now seen corresponding path program 1 times [2022-02-09 07:13:35,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:35,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647791857] [2022-02-09 07:13:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:35,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:36,068 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 07:13:36,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:36,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647791857] [2022-02-09 07:13:36,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647791857] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:36,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192902382] [2022-02-09 07:13:36,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:36,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:36,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:36,070 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) [2022-02-09 07:13:36,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 07:13:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:36,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-09 07:13:36,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:36,825 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:36,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:37,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192902382] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:37,580 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:37,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 22 [2022-02-09 07:13:37,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719756133] [2022-02-09 07:13:37,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:37,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-09 07:13:37,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:37,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-09 07:13:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-02-09 07:13:37,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:37,583 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:37,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.227272727272727) internal successors, (291), 22 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:37,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:37,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:37,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:37,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:37,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:13:37,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:13:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 07:13:37,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 07:13:38,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-09 07:13:38,024 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:38,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1527431135, now seen corresponding path program 2 times [2022-02-09 07:13:38,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:38,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081389956] [2022-02-09 07:13:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:38,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:38,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:38,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081389956] [2022-02-09 07:13:38,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081389956] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:38,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807922514] [2022-02-09 07:13:38,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 07:13:38,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:38,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:38,708 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) [2022-02-09 07:13:38,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 07:13:38,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 07:13:38,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:38,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 52 conjunts are in the unsatisfiable core [2022-02-09 07:13:38,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:39,667 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:40,276 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:40,410 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:40,518 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:40,911 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:41,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:42,831 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:42,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 68 treesize of output 56 [2022-02-09 07:13:42,841 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:42,841 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1308 treesize of output 1260 [2022-02-09 07:13:42,856 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:42,856 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1244 treesize of output 1212 [2022-02-09 07:13:42,870 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:42,870 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1196 treesize of output 1020 [2022-02-09 07:13:42,884 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:42,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1004 treesize of output 924 [2022-02-09 07:13:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:13:46,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807922514] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:46,658 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:46,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 31, 27] total 73 [2022-02-09 07:13:46,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771235548] [2022-02-09 07:13:46,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:46,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-02-09 07:13:46,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:46,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-02-09 07:13:46,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=759, Invalid=4417, Unknown=80, NotChecked=0, Total=5256 [2022-02-09 07:13:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:46,661 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:46,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 4.410958904109589) internal successors, (322), 73 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:46,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:46,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:46,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:46,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:46,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:13:46,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-02-09 07:13:46,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:13:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 07:13:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:13:52,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 07:13:52,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:52,456 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:13:52,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:52,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1576366968, now seen corresponding path program 3 times [2022-02-09 07:13:52,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:52,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894419799] [2022-02-09 07:13:52,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:52,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 07:13:52,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:52,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894419799] [2022-02-09 07:13:52,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894419799] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:52,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044427964] [2022-02-09 07:13:52,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 07:13:52,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:52,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:52,560 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) [2022-02-09 07:13:52,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 07:13:52,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-09 07:13:52,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:52,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-09 07:13:52,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:53,135 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:53,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:53,468 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:53,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:13:53,781 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:53,973 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-02-09 07:13:53,973 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:13:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 07:13:54,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:55,066 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_175 (Array Int Int)) (~back~0 Int) (v_ArrVal_176 (Array Int Int)) (~front~0 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_175))) (or (not (= (select (select .cse0 c_~queue~0.base) (+ c_~queue~0.offset (* ~back~0 4))) 1)) (<= c_~n~0 ~front~0) (<= (+ c_~d~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_176) c_~queue~0.base) (+ c_~queue~0.offset (* ~front~0 4)))) 1) (not (< ~back~0 c_~n~0)) (not (<= 0 ~back~0)) (< ~front~0 0)))) (= (mod c_~v_assert~0 256) 0)) is different from false [2022-02-09 07:13:55,341 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_ArrVal_175 (Array Int Int)) (~back~0 Int) (v_ArrVal_174 (Array Int Int)) (v_ArrVal_176 (Array Int Int)) (~front~0 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_174) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_175))) (or (not (= (select (select .cse0 c_~queue~0.base) (+ c_~queue~0.offset (* ~back~0 4))) 1)) (<= c_~n~0 ~front~0) (not (< ~back~0 c_~n~0)) (<= (+ c_~d~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_176) c_~queue~0.base) (+ c_~queue~0.offset (* ~front~0 4)))) 1) (not (<= 0 ~back~0)) (< ~front~0 0))))) is different from false [2022-02-09 07:13:55,837 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_175 (Array Int Int)) (~back~0 Int) (v_ArrVal_174 (Array Int Int)) (v_ArrVal_176 (Array Int Int)) (~front~0 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_174) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_175))) (or (not (= (select (select .cse0 |c_ULTIMATE.start_main_#t~ret9#1.base|) (+ (* ~back~0 4) |c_ULTIMATE.start_main_#t~ret9#1.offset|)) 1)) (<= c_~n~0 ~front~0) (not (< ~back~0 c_~n~0)) (<= (+ c_~d~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_176) |c_ULTIMATE.start_main_#t~ret9#1.base|) (+ (* ~front~0 4) |c_ULTIMATE.start_main_#t~ret9#1.offset|))) 1) (not (<= 0 ~back~0)) (< ~front~0 0)))) (= (mod c_~v_assert~0 256) 0)) is different from false [2022-02-09 07:13:55,937 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_175 (Array Int Int)) (~back~0 Int) (v_ArrVal_174 (Array Int Int)) (v_ArrVal_176 (Array Int Int)) (~front~0 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_174) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_175))) (or (<= c_~n~0 ~front~0) (not (= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ (* ~back~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) 1)) (not (< ~back~0 c_~n~0)) (<= (+ c_~d~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_176) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) (+ (* ~front~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) 1) (not (<= 0 ~back~0)) (< ~front~0 0)))) (= (mod c_~v_assert~0 256) 0)) is different from false [2022-02-09 07:13:55,996 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_ArrVal_175 (Array Int Int)) (~back~0 Int) (v_ArrVal_174 (Array Int Int)) (v_ArrVal_176 (Array Int Int)) (~front~0 Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_174) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_175))) (or (not (= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* ~back~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 1)) (<= c_~n~0 ~front~0) (not (< ~back~0 c_~n~0)) (<= (+ c_~d~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_176) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* ~front~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) 1) (not (<= 0 ~back~0)) (< ~front~0 0))))) is different from false [2022-02-09 07:13:56,421 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:56,421 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 65 treesize of output 53 [2022-02-09 07:13:56,429 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:56,430 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 742 treesize of output 718 [2022-02-09 07:13:56,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 638 treesize of output 542 [2022-02-09 07:13:56,451 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:56,451 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 606 treesize of output 562 [2022-02-09 07:13:56,465 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:13:56,465 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 312 treesize of output 298 [2022-02-09 07:13:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 07:13:58,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044427964] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:58,189 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:58,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 29] total 63 [2022-02-09 07:13:58,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207807858] [2022-02-09 07:13:58,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:58,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-02-09 07:13:58,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:58,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-02-09 07:13:58,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=2993, Unknown=21, NotChecked=580, Total=3906 [2022-02-09 07:13:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:58,191 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:58,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 5.444444444444445) internal successors, (343), 63 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:13:58,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:58,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:58,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:13:58,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:13:58,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:13:58,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-02-09 07:13:58,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:13:58,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:02,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:02,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:02,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:14:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:02,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-09 07:14:03,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:03,138 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:14:03,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:14:03,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1900738376, now seen corresponding path program 4 times [2022-02-09 07:14:03,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:14:03,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935165777] [2022-02-09 07:14:03,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:14:03,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:14:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:14:03,256 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-09 07:14:03,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:14:03,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935165777] [2022-02-09 07:14:03,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935165777] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:14:03,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439067446] [2022-02-09 07:14:03,257 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 07:14:03,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:03,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:14:03,272 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) [2022-02-09 07:14:03,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 07:14:03,365 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 07:14:03,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:14:03,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-09 07:14:03,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:14:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-09 07:14:03,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:14:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-09 07:14:04,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439067446] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:14:04,614 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:14:04,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 14] total 28 [2022-02-09 07:14:04,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436119176] [2022-02-09 07:14:04,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:14:04,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 07:14:04,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:14:04,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 07:14:04,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-02-09 07:14:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:04,619 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:14:04,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.857142857142858) internal successors, (332), 28 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:04,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:14:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:05,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:14:05,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 07:14:05,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:05,212 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:14:05,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:14:05,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2102249255, now seen corresponding path program 5 times [2022-02-09 07:14:05,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:14:05,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714729019] [2022-02-09 07:14:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:14:05,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:14:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:14:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:14:06,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:14:06,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714729019] [2022-02-09 07:14:06,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714729019] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:14:06,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300815612] [2022-02-09 07:14:06,358 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 07:14:06,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:06,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:14:06,363 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) [2022-02-09 07:14:06,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 07:14:06,487 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-02-09 07:14:06,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:14:06,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 66 conjunts are in the unsatisfiable core [2022-02-09 07:14:06,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:14:08,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:14:08,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:14:08,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:14:08,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:14:08,545 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:14:08,545 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 41 treesize of output 19 [2022-02-09 07:14:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:14:08,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:14:09,445 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-02-09 07:14:09,446 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 67 [2022-02-09 07:14:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:14:11,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300815612] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:14:11,268 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:14:11,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 32, 27] total 81 [2022-02-09 07:14:11,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190787062] [2022-02-09 07:14:11,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:14:11,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-02-09 07:14:11,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:14:11,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-02-09 07:14:11,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=743, Invalid=5737, Unknown=0, NotChecked=0, Total=6480 [2022-02-09 07:14:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:11,271 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:14:11,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 4.493827160493828) internal successors, (364), 81 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:14:11,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:11,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:14:11,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:14:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:14:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 07:14:15,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 07:14:16,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:16,136 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:14:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:14:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1157267324, now seen corresponding path program 1 times [2022-02-09 07:14:16,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:14:16,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54155261] [2022-02-09 07:14:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:14:16,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:14:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:14:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-09 07:14:16,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:14:16,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54155261] [2022-02-09 07:14:16,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54155261] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:14:16,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766348363] [2022-02-09 07:14:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:14:16,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:16,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:14:16,224 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) [2022-02-09 07:14:16,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 07:14:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:14:16,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 07:14:16,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:14:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-09 07:14:16,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:14:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-09 07:14:16,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766348363] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:14:16,955 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:14:16,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 8 [2022-02-09 07:14:16,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829736884] [2022-02-09 07:14:16,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:14:16,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-09 07:14:16,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:14:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-09 07:14:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-09 07:14:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:16,960 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:14:16,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.75) internal successors, (206), 8 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:16,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:14:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 07:14:16,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-09 07:14:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:14:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-02-09 07:14:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:19,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 07:14:19,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:19,568 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:14:19,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:14:19,568 INFO L85 PathProgramCache]: Analyzing trace with hash 182679091, now seen corresponding path program 2 times [2022-02-09 07:14:19,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:14:19,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725907001] [2022-02-09 07:14:19,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:14:19,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:14:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:14:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 07:14:19,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:14:19,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725907001] [2022-02-09 07:14:19,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725907001] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:14:19,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361775795] [2022-02-09 07:14:19,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 07:14:19,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:19,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:14:19,659 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) [2022-02-09 07:14:19,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 07:14:19,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 07:14:19,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:14:19,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-09 07:14:19,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:14:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 07:14:20,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:14:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 07:14:20,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361775795] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:14:20,465 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:14:20,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2022-02-09 07:14:20,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993182939] [2022-02-09 07:14:20,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:14:20,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 07:14:20,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:14:20,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 07:14:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2022-02-09 07:14:20,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:20,467 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:14:20,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.357142857142858) internal successors, (234), 28 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:20,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:20,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:20,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:20,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:14:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 07:14:20,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-09 07:14:20,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-09 07:14:20,943 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:14:20,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:14:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1139558524, now seen corresponding path program 3 times [2022-02-09 07:14:20,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:14:20,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726725765] [2022-02-09 07:14:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:14:20,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:14:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:14:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:14:22,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:14:22,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726725765] [2022-02-09 07:14:22,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726725765] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:14:22,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682158232] [2022-02-09 07:14:22,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 07:14:22,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:22,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:14:22,057 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) [2022-02-09 07:14:22,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 07:14:22,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-09 07:14:22,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:14:22,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-09 07:14:22,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:14:22,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:14:23,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:14:23,540 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:14:23,624 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:14:23,710 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:14:24,718 INFO L353 Elim1Store]: treesize reduction 46, result has 6.1 percent of original size [2022-02-09 07:14:24,719 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 16 [2022-02-09 07:14:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:14:24,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:14:31,605 INFO L353 Elim1Store]: treesize reduction 28, result has 54.8 percent of original size [2022-02-09 07:14:31,605 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 159 treesize of output 116 [2022-02-09 07:14:31,686 INFO L353 Elim1Store]: treesize reduction 64, result has 60.2 percent of original size [2022-02-09 07:14:31,686 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 4407 treesize of output 4239 [2022-02-09 07:14:31,842 INFO L353 Elim1Store]: treesize reduction 48, result has 50.5 percent of original size [2022-02-09 07:14:31,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 4130 treesize of output 3794 [2022-02-09 07:14:31,922 INFO L353 Elim1Store]: treesize reduction 48, result has 50.5 percent of original size [2022-02-09 07:14:31,922 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 3746 treesize of output 3026 [2022-02-09 07:14:32,030 INFO L353 Elim1Store]: treesize reduction 48, result has 50.5 percent of original size [2022-02-09 07:14:32,031 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 2978 treesize of output 2834 [2022-02-09 07:15:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:15:53,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682158232] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:15:53,627 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:15:53,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 41, 38] total 103 [2022-02-09 07:15:53,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184867099] [2022-02-09 07:15:53,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:15:53,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-02-09 07:15:53,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:15:53,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-02-09 07:15:53,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1132, Invalid=9264, Unknown=110, NotChecked=0, Total=10506 [2022-02-09 07:15:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:15:53,635 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:15:53,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 4.087378640776699) internal successors, (421), 103 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:15:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:15:53,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:15:53,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:15:53,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:15:53,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:15:53,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:15:53,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-02-09 07:15:53,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:15:53,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 07:15:53,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-02-09 07:15:53,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:15:53,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 07:15:53,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 07:16:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-09 07:16:05,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-09 07:16:06,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-09 07:16:06,148 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:16:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:16:06,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1032431133, now seen corresponding path program 6 times [2022-02-09 07:16:06,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:16:06,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491844388] [2022-02-09 07:16:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:16:06,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:16:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:16:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:07,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:16:07,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491844388] [2022-02-09 07:16:07,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491844388] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:16:07,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102650440] [2022-02-09 07:16:07,239 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 07:16:07,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:16:07,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:16:07,241 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) [2022-02-09 07:16:07,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-09 07:16:07,351 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-09 07:16:07,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:16:07,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 70 conjunts are in the unsatisfiable core [2022-02-09 07:16:07,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:16:08,204 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:08,539 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:08,611 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:09,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:16:09,026 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 30 [2022-02-09 07:16:09,271 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-09 07:16:09,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 13 [2022-02-09 07:16:09,365 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:09,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:16:09,594 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_404 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404) c_~queue~0.base)) (.cse1 (* c_~front~0 4))) (+ (select .cse0 (+ c_~queue~0.offset .cse1 4)) (select .cse0 (+ c_~queue~0.offset .cse1)) c_~d~0)) c_~W~0)) is different from false [2022-02-09 07:16:11,355 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:16:11,356 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 127 treesize of output 91 [2022-02-09 07:16:11,397 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-02-09 07:16:11,397 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 778 treesize of output 762 [2022-02-09 07:16:11,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:16:11,408 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 428 treesize of output 324 [2022-02-09 07:16:11,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:16:11,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:16:11,439 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:16:11,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 445 treesize of output 461 [2022-02-09 07:16:11,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:16:11,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:16:11,461 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:16:11,461 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 554 treesize of output 518 [2022-02-09 07:16:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:18,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102650440] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:16:18,201 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:16:18,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 38, 37] total 99 [2022-02-09 07:16:18,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498402117] [2022-02-09 07:16:18,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:16:18,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-02-09 07:16:18,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:16:18,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-02-09 07:16:18,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=801, Invalid=8678, Unknown=31, NotChecked=192, Total=9702 [2022-02-09 07:16:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:18,204 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:16:18,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 3.797979797979798) internal successors, (376), 99 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-09 07:16:18,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:16:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 07:16:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-09 07:16:25,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-09 07:16:25,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-09 07:16:25,693 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:16:25,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:16:25,694 INFO L85 PathProgramCache]: Analyzing trace with hash -735764515, now seen corresponding path program 7 times [2022-02-09 07:16:25,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:16:25,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127513033] [2022-02-09 07:16:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:16:25,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:16:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:16:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:26,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:16:26,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127513033] [2022-02-09 07:16:26,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127513033] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:16:26,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806492688] [2022-02-09 07:16:26,971 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 07:16:26,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:16:26,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:16:26,972 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) [2022-02-09 07:16:26,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-09 07:16:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:16:27,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-09 07:16:27,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:16:27,146 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:27,517 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-09 07:16:27,517 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-09 07:16:28,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:16:28,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-02-09 07:16:29,036 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 29 [2022-02-09 07:16:29,588 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-02-09 07:16:29,589 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 47 treesize of output 16 [2022-02-09 07:16:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:29,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:16:30,040 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_443 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_443) c_~queue~0.base)) (.cse1 (* c_~front~0 4))) (+ (select .cse0 (+ c_~queue~0.offset .cse1 4)) c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse1)))) c_~W~0)) is different from false [2022-02-09 07:16:30,056 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_443 (Array Int Int)) (v_ArrVal_442 (Array Int Int))) (<= (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_442) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_443) c_~queue~0.base)) (.cse1 (* c_~front~0 4))) (+ c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse1 4)) (select .cse0 (+ c_~queue~0.offset .cse1)))) c_~W~0)) is different from false [2022-02-09 07:16:30,503 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-02-09 07:16:30,503 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 134 treesize of output 153 [2022-02-09 07:16:30,511 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-09 07:16:30,511 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 93 treesize of output 67 [2022-02-09 07:16:30,518 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-09 07:16:30,518 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 26 [2022-02-09 07:16:35,086 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2022-02-09 07:16:35,144 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:35,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806492688] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:16:35,144 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:16:35,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 36, 36] total 97 [2022-02-09 07:16:35,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371601389] [2022-02-09 07:16:35,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:16:35,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-09 07:16:35,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:16:35,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-09 07:16:35,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=638, Invalid=8298, Unknown=2, NotChecked=374, Total=9312 [2022-02-09 07:16:35,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:35,149 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:16:35,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.865979381443299) internal successors, (375), 97 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 160 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-09 07:16:35,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:16:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:16:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:44,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-09 07:16:44,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-09 07:16:44,875 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:16:44,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:16:44,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1178346148, now seen corresponding path program 8 times [2022-02-09 07:16:44,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:16:44,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506762046] [2022-02-09 07:16:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:16:44,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:16:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:16:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 07:16:44,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:16:44,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506762046] [2022-02-09 07:16:44,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506762046] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:16:44,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854032612] [2022-02-09 07:16:44,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 07:16:44,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:16:44,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:16:44,941 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) [2022-02-09 07:16:44,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-09 07:16:45,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 07:16:45,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:16:45,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-09 07:16:45,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:16:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 07:16:45,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:16:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 18 proven. 34 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 07:16:45,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854032612] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:16:45,791 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:16:45,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 9] total 13 [2022-02-09 07:16:45,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382378309] [2022-02-09 07:16:45,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:16:45,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-09 07:16:45,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:16:45,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-09 07:16:45,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-02-09 07:16:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:45,792 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:16:45,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.846153846153847) internal successors, (258), 13 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:16:45,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:45,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:16:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:16:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:16:45,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-09 07:16:46,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-09 07:16:46,064 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:16:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:16:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -290138309, now seen corresponding path program 9 times [2022-02-09 07:16:46,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:16:46,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655909231] [2022-02-09 07:16:46,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:16:46,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:16:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:16:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:47,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:16:47,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655909231] [2022-02-09 07:16:47,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655909231] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:16:47,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508557235] [2022-02-09 07:16:47,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 07:16:47,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:16:47,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:16:47,782 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) [2022-02-09 07:16:47,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-09 07:16:48,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-09 07:16:48,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:16:48,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 92 conjunts are in the unsatisfiable core [2022-02-09 07:16:48,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:16:48,964 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:49,135 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:49,573 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:49,668 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:49,753 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:16:51,089 INFO L353 Elim1Store]: treesize reduction 158, result has 4.2 percent of original size [2022-02-09 07:16:51,090 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 67 treesize of output 24 [2022-02-09 07:16:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:16:51,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:17:00,105 INFO L353 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-02-09 07:17:00,106 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 243 treesize of output 148 [2022-02-09 07:17:00,176 INFO L353 Elim1Store]: treesize reduction 145, result has 41.1 percent of original size [2022-02-09 07:17:00,176 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 3080 treesize of output 2984 [2022-02-09 07:17:00,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,232 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:17:00,233 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 2366 treesize of output 2200 [2022-02-09 07:17:00,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,294 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:17:00,294 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 2588 treesize of output 2570 [2022-02-09 07:17:00,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:17:00,375 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:17:00,376 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 2440 treesize of output 1978 [2022-02-09 07:17:50,933 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:17:50,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508557235] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:17:50,933 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:17:50,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 45, 42] total 116 [2022-02-09 07:17:50,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672034171] [2022-02-09 07:17:50,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:17:50,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-09 07:17:50,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:17:50,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-09 07:17:50,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1507, Invalid=11703, Unknown=130, NotChecked=0, Total=13340 [2022-02-09 07:17:50,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:17:50,938 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:17:50,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 3.706896551724138) internal successors, (430), 116 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:17:50,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:17:50,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:17:50,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:17:50,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:17:50,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:17:50,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:17:50,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:17:50,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:17:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:17:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:17:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-09 07:17:59,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-02-09 07:17:59,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-09 07:17:59,592 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:17:59,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:17:59,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1649498220, now seen corresponding path program 10 times [2022-02-09 07:17:59,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:17:59,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18317395] [2022-02-09 07:17:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:17:59,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:17:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:17:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 34 proven. 36 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-02-09 07:17:59,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:17:59,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18317395] [2022-02-09 07:17:59,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18317395] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:17:59,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730470863] [2022-02-09 07:17:59,751 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 07:17:59,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:17:59,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:17:59,752 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) [2022-02-09 07:17:59,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-09 07:17:59,897 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 07:17:59,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:17:59,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-09 07:17:59,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:18:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 46 proven. 24 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-02-09 07:18:00,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:18:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 20 proven. 50 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-02-09 07:18:00,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730470863] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:18:00,877 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:18:00,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2022-02-09 07:18:00,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934820138] [2022-02-09 07:18:00,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:18:00,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-09 07:18:00,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:18:00,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-09 07:18:00,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1097, Unknown=0, NotChecked=0, Total=1332 [2022-02-09 07:18:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:00,880 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:18:00,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.405405405405405) internal successors, (274), 37 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:18:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-02-09 07:18:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:18:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 07:18:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-09 07:18:02,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:02,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-02-09 07:18:02,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:02,855 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:18:02,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:18:02,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1640737064, now seen corresponding path program 4 times [2022-02-09 07:18:02,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:18:02,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357605776] [2022-02-09 07:18:02,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:18:02,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:18:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:18:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:18:04,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:18:04,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357605776] [2022-02-09 07:18:04,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357605776] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:18:04,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479001734] [2022-02-09 07:18:04,219 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 07:18:04,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:04,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:18:04,220 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:18:04,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-09 07:18:04,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 07:18:04,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:18:04,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 66 conjunts are in the unsatisfiable core [2022-02-09 07:18:04,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:18:06,852 INFO L353 Elim1Store]: treesize reduction 162, result has 4.1 percent of original size [2022-02-09 07:18:06,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 69 treesize of output 24 [2022-02-09 07:18:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:18:07,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:18:08,013 INFO L353 Elim1Store]: treesize reduction 130, result has 48.2 percent of original size [2022-02-09 07:18:08,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 140 [2022-02-09 07:18:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:18:10,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479001734] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:18:10,507 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:18:10,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 36, 36] total 105 [2022-02-09 07:18:10,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701556266] [2022-02-09 07:18:10,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:18:10,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-02-09 07:18:10,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:18:10,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-02-09 07:18:10,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1022, Invalid=9898, Unknown=0, NotChecked=0, Total=10920 [2022-02-09 07:18:10,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:10,510 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:18:10,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 4.228571428571429) internal successors, (444), 105 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:18:10,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:10,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-09 07:18:20,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:20,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-09 07:18:20,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-09 07:18:20,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:20,629 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:18:20,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:18:20,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1179748145, now seen corresponding path program 11 times [2022-02-09 07:18:20,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:18:20,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718706844] [2022-02-09 07:18:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:18:20,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:18:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:18:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-09 07:18:20,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:18:20,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718706844] [2022-02-09 07:18:20,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718706844] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:18:20,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:18:20,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 07:18:20,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626034695] [2022-02-09 07:18:20,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:18:20,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 07:18:20,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:18:20,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 07:18:20,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 07:18:20,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:20,765 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:18:20,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:20,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-09 07:18:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:18:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-09 07:18:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-09 07:18:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-09 07:18:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:21,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-09 07:18:21,081 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:18:21,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:18:21,081 INFO L85 PathProgramCache]: Analyzing trace with hash -960088004, now seen corresponding path program 5 times [2022-02-09 07:18:21,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:18:21,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868435637] [2022-02-09 07:18:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:18:21,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:18:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:18:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:18:22,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:18:22,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868435637] [2022-02-09 07:18:22,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868435637] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:18:22,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829302356] [2022-02-09 07:18:22,841 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 07:18:22,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:22,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:18:22,843 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:18:22,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-09 07:18:22,972 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-02-09 07:18:22,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:18:22,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-09 07:18:22,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:18:23,727 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-09 07:18:23,727 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 13 [2022-02-09 07:18:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-09 07:18:23,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:18:24,378 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-02-09 07:18:24,378 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 67 [2022-02-09 07:18:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 07:18:24,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829302356] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:18:24,777 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:18:24,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 21, 18] total 67 [2022-02-09 07:18:24,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683558252] [2022-02-09 07:18:24,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:18:24,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-09 07:18:24,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:18:24,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-09 07:18:24,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=373, Invalid=4049, Unknown=0, NotChecked=0, Total=4422 [2022-02-09 07:18:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:24,781 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:18:24,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 5.686567164179104) internal successors, (381), 67 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:18:24,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:24,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:24,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:24,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:24,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:24,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:24,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:24,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:18:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:18:38,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-09 07:18:38,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:38,676 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:18:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:18:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1255362023, now seen corresponding path program 12 times [2022-02-09 07:18:38,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:18:38,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973297913] [2022-02-09 07:18:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:18:38,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:18:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:18:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:18:39,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:18:39,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973297913] [2022-02-09 07:18:39,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973297913] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:18:39,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994317364] [2022-02-09 07:18:39,930 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 07:18:39,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:39,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:18:39,932 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:18:39,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-09 07:18:40,072 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-02-09 07:18:40,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:18:40,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 51 conjunts are in the unsatisfiable core [2022-02-09 07:18:40,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:18:41,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:18:41,080 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:18:41,169 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:18:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 07:18:41,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:18:41,367 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_711 (Array Int Int))) (<= (+ c_~d~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_711) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0)) is different from false [2022-02-09 07:18:41,372 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod |c_thread1Thread1of1ForFork1_~cond~0#1| 256) 0) (forall ((v_ArrVal_711 (Array Int Int))) (<= (+ c_~d~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_711) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0))) is different from false [2022-02-09 07:18:41,376 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_ArrVal_711 (Array Int Int))) (<= (+ c_~d~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_711) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0))) is different from false [2022-02-09 07:18:41,514 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:18:41,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 46 [2022-02-09 07:18:41,517 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 9 [2022-02-09 07:18:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 3 not checked. [2022-02-09 07:18:42,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994317364] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:18:42,484 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:18:42,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 23] total 76 [2022-02-09 07:18:42,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124894023] [2022-02-09 07:18:42,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:18:42,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-09 07:18:42,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:18:42,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-09 07:18:42,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=4852, Unknown=3, NotChecked=432, Total=5700 [2022-02-09 07:18:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:42,486 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:18:42,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 5.118421052631579) internal successors, (389), 76 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:42,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-09 07:18:42,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:42,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-09 07:18:42,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:18:42,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 07:18:42,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 07:18:45,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-09 07:18:45,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:45,905 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:18:45,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:18:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash 489140841, now seen corresponding path program 13 times [2022-02-09 07:18:45,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:18:45,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732164006] [2022-02-09 07:18:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:18:45,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:18:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:18:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:18:47,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:18:47,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732164006] [2022-02-09 07:18:47,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732164006] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:18:47,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672136805] [2022-02-09 07:18:47,421 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 07:18:47,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:18:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:18:47,422 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:18:47,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-09 07:18:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:18:47,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 84 conjunts are in the unsatisfiable core [2022-02-09 07:18:47,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:18:47,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:18:47,909 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-09 07:18:47,909 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-09 07:18:50,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 66 treesize of output 60 [2022-02-09 07:18:50,723 INFO L353 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-02-09 07:18:50,724 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 70 treesize of output 18 [2022-02-09 07:18:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:18:50,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:18:51,076 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_753 (Array Int Int))) (<= (+ c_~d~0 |c_thread2Thread1of1ForFork2_~temp~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_753) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) c_~W~0)) is different from false [2022-02-09 07:18:51,080 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_753 (Array Int Int))) (<= (let ((.cse0 (* c_~front~0 4))) (+ c_~d~0 (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset .cse0)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_753) c_~queue~0.base) (+ c_~queue~0.offset .cse0 4)))) c_~W~0)) is different from false [2022-02-09 07:18:51,089 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_753 (Array Int Int))) (<= (let ((.cse0 (* c_~front~0 4))) (+ c_~d~0 |c_thread2Thread1of1ForFork2_~temp~0#1| (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset .cse0)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_753) c_~queue~0.base) (+ c_~queue~0.offset .cse0 4)))) c_~W~0)) is different from false [2022-02-09 07:18:51,093 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_753 (Array Int Int))) (<= (let ((.cse1 (select |c_#memory_int| c_~queue~0.base)) (.cse0 (* c_~front~0 4))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_753) c_~queue~0.base) (+ c_~queue~0.offset .cse0 8)) c_~d~0 (select .cse1 (+ c_~queue~0.offset .cse0)) (select .cse1 (+ c_~queue~0.offset .cse0 4)))) c_~W~0)) is different from false [2022-02-09 07:18:51,820 INFO L353 Elim1Store]: treesize reduction 140, result has 46.4 percent of original size [2022-02-09 07:18:51,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 112 treesize of output 163 [2022-02-09 07:18:51,826 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 11 [2022-02-09 07:18:54,137 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2022-02-09 07:18:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 21 not checked. [2022-02-09 07:18:54,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672136805] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:18:54,156 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:18:54,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 41, 41] total 112 [2022-02-09 07:18:54,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889468744] [2022-02-09 07:18:54,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:18:54,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-09 07:18:54,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:18:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-09 07:18:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=963, Invalid=10605, Unknown=4, NotChecked=860, Total=12432 [2022-02-09 07:18:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:54,159 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:18:54,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 3.8214285714285716) internal successors, (428), 112 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:18:54,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:54,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:18:54,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-09 07:18:54,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:18:54,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:18:54,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-09 07:18:54,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 07:19:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-09 07:19:07,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-09 07:19:07,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:19:07,544 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:19:07,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:19:07,544 INFO L85 PathProgramCache]: Analyzing trace with hash -999264619, now seen corresponding path program 14 times [2022-02-09 07:19:07,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:19:07,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735397447] [2022-02-09 07:19:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:19:07,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:19:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:19:09,750 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:19:09,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:19:09,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735397447] [2022-02-09 07:19:09,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735397447] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:19:09,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972741066] [2022-02-09 07:19:09,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 07:19:09,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:19:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:19:09,753 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:19:09,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-02-09 07:19:09,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 07:19:09,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:19:09,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 77 conjunts are in the unsatisfiable core [2022-02-09 07:19:09,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:19:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:11,787 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 30 [2022-02-09 07:19:11,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:11,912 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 30 [2022-02-09 07:19:12,506 INFO L353 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-02-09 07:19:12,506 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 13 [2022-02-09 07:19:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:19:12,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:19:13,955 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-02-09 07:19:13,956 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 255 treesize of output 256 [2022-02-09 07:19:13,967 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-09 07:19:13,968 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 196 treesize of output 144 [2022-02-09 07:19:13,977 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-02-09 07:19:13,977 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 144 treesize of output 118 [2022-02-09 07:19:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:19:17,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972741066] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:19:17,288 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:19:17,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 38, 38] total 104 [2022-02-09 07:19:17,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680598441] [2022-02-09 07:19:17,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:19:17,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-09 07:19:17,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:19:17,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-09 07:19:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=628, Invalid=10080, Unknown=4, NotChecked=0, Total=10712 [2022-02-09 07:19:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:17,292 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:19:17,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 3.8076923076923075) internal successors, (396), 104 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:19:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-09 07:19:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:31,003 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_753 (Array Int Int))) (<= (let ((.cse1 (select |c_#memory_int| c_~queue~0.base)) (.cse0 (* c_~front~0 4))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_753) c_~queue~0.base) (+ c_~queue~0.offset .cse0 8)) c_~d~0 (select .cse1 (+ c_~queue~0.offset .cse0)) (select .cse1 (+ c_~queue~0.offset .cse0 4)))) c_~W~0)) (not (<= (mod |c_thread2Thread1of1ForFork2_~cond~1#1| 256) 0))) is different from false [2022-02-09 07:19:31,395 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_753 (Array Int Int))) (<= (let ((.cse0 (* c_~front~0 4))) (+ c_~d~0 (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset .cse0)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_753) c_~queue~0.base) (+ c_~queue~0.offset .cse0 4)))) c_~W~0)) (not (<= (mod |c_thread2Thread1of1ForFork2_~cond~1#1| 256) 0))) is different from false [2022-02-09 07:19:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:19:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:19:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:19:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-02-09 07:19:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 07:19:31,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-02-09 07:19:31,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:19:31,739 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:19:31,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:19:31,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1048504307, now seen corresponding path program 15 times [2022-02-09 07:19:31,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:19:31,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153694848] [2022-02-09 07:19:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:19:31,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:19:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:19:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:19:33,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:19:33,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153694848] [2022-02-09 07:19:33,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153694848] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:19:33,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079087810] [2022-02-09 07:19:33,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 07:19:33,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:19:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:19:33,836 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:19:33,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-02-09 07:19:34,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-09 07:19:34,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:19:34,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-09 07:19:34,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:19:35,362 INFO L353 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-02-09 07:19:35,362 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 70 treesize of output 18 [2022-02-09 07:19:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-02-09 07:19:35,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:19:36,465 INFO L353 Elim1Store]: treesize reduction 140, result has 46.4 percent of original size [2022-02-09 07:19:36,466 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 140 [2022-02-09 07:19:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 14 proven. 25 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-02-09 07:19:37,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079087810] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:19:37,124 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:19:37,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 24, 24] total 78 [2022-02-09 07:19:37,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241665375] [2022-02-09 07:19:37,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:19:37,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-09 07:19:37,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:19:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-09 07:19:37,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=466, Invalid=5540, Unknown=0, NotChecked=0, Total=6006 [2022-02-09 07:19:37,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:37,133 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:19:37,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 5.076923076923077) internal successors, (396), 78 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:19:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-09 07:19:37,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:19:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:19:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:19:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:19:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 07:19:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 07:19:42,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-02-09 07:19:43,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-02-09 07:19:43,020 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:19:43,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:19:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1903968162, now seen corresponding path program 16 times [2022-02-09 07:19:43,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:19:43,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366246143] [2022-02-09 07:19:43,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:19:43,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:19:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:19:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 45 proven. 46 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-02-09 07:19:43,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:19:43,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366246143] [2022-02-09 07:19:43,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366246143] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:19:43,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958006960] [2022-02-09 07:19:43,120 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 07:19:43,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:19:43,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:19:43,121 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:19:43,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-02-09 07:19:43,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 07:19:43,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:19:43,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-09 07:19:43,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:19:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-09 07:19:44,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:19:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 44 proven. 60 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-09 07:19:45,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958006960] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:19:45,045 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:19:45,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 20, 20] total 42 [2022-02-09 07:19:45,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677200274] [2022-02-09 07:19:45,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:19:45,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-09 07:19:45,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:19:45,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-09 07:19:45,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=1314, Unknown=0, NotChecked=0, Total=1722 [2022-02-09 07:19:45,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:45,046 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:19:45,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 9.476190476190476) internal successors, (398), 42 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 07:19:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 07:19:45,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 07:19:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:19:45,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-02-09 07:19:45,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-02-09 07:19:45,773 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 07:19:45,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:19:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1042985855, now seen corresponding path program 17 times [2022-02-09 07:19:45,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:19:45,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770456151] [2022-02-09 07:19:45,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:19:45,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:19:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:19:47,587 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 21 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:19:47,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:19:47,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770456151] [2022-02-09 07:19:47,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770456151] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:19:47,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303756819] [2022-02-09 07:19:47,587 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 07:19:47,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:19:47,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:19:47,588 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 07:19:47,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-02-09 07:19:47,735 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-02-09 07:19:47,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:19:47,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 120 conjunts are in the unsatisfiable core [2022-02-09 07:19:47,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:19:48,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:19:48,889 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:19:49,061 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:19:49,451 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:19:49,528 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:19:49,591 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-02-09 07:19:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:19:51,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:19:51,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 07:19:51,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:19:51,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 07:19:51,792 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 07:19:51,792 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 80 treesize of output 34 [2022-02-09 07:19:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 9 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 07:19:51,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:19:55,322 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_~front~0_148 Int) (v_ArrVal_936 (Array Int Int)) (~back~0 Int) (~front~0 Int)) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_936) c_~queue~0.base)) (.cse1 (* ~back~0 4))) (or (< ~back~0 0) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 4)) 1)) (<= c_~n~0 (+ ~back~0 3)) (not (= (select .cse0 (+ c_~queue~0.offset .cse1)) 1)) (<= (let ((.cse2 (* ~front~0 4))) (+ (select .cse0 (+ c_~queue~0.offset .cse2)) c_~d~0 (select .cse0 (+ c_~queue~0.offset (* v_~front~0_148 4))) (select .cse0 (+ c_~queue~0.offset .cse2 4)) (select .cse0 (+ c_~queue~0.offset .cse2 8)))) 4) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 8)) 1)) (<= c_~n~0 v_~front~0_148) (< v_~front~0_148 (+ 3 ~front~0)) (< ~front~0 0) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 12)) 1)))))) is different from false [2022-02-09 07:19:55,835 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_~front~0_148 Int) (v_ArrVal_935 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (~back~0 Int) (~front~0 Int)) (let ((.cse1 (* ~back~0 4)) (.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_935) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_936) c_~queue~0.base))) (or (< ~back~0 0) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 12)) 1)) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 4)) 1)) (<= c_~n~0 (+ ~back~0 3)) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 8)) 1)) (not (= (select .cse0 (+ c_~queue~0.offset .cse1)) 1)) (<= (let ((.cse2 (* ~front~0 4))) (+ (select .cse0 (+ c_~queue~0.offset .cse2 8)) c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse2 4)) (select .cse0 (+ c_~queue~0.offset (* v_~front~0_148 4))) (select .cse0 (+ c_~queue~0.offset .cse2)))) 4) (<= c_~n~0 v_~front~0_148) (< v_~front~0_148 (+ 3 ~front~0)) (< ~front~0 0))))) is different from false [2022-02-09 07:19:56,385 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_~front~0_148 Int) (v_ArrVal_935 (Array Int Int)) (v_ArrVal_934 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (~back~0 Int) (~front~0 Int)) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_934) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_935) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_936) c_~queue~0.base)) (.cse1 (* ~back~0 4))) (or (< ~back~0 0) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 8)) 1)) (<= c_~n~0 (+ ~back~0 3)) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 12)) 1)) (<= (let ((.cse2 (* ~front~0 4))) (+ c_~d~0 (select .cse0 (+ c_~queue~0.offset .cse2)) (select .cse0 (+ c_~queue~0.offset .cse2 8)) (select .cse0 (+ c_~queue~0.offset .cse2 4)) (select .cse0 (+ c_~queue~0.offset (* v_~front~0_148 4))))) 4) (not (= (select .cse0 (+ c_~queue~0.offset .cse1)) 1)) (<= c_~n~0 v_~front~0_148) (< v_~front~0_148 (+ 3 ~front~0)) (< ~front~0 0) (not (= (select .cse0 (+ c_~queue~0.offset .cse1 4)) 1))))) (= (mod c_~v_assert~0 256) 0)) is different from false [2022-02-09 07:19:57,738 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_~front~0_148 Int) (v_ArrVal_935 (Array Int Int)) (v_ArrVal_934 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (~back~0 Int) (~front~0 Int)) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_934) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_935) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_936) |c_ULTIMATE.start_main_#t~ret9#1.base|)) (.cse1 (* ~back~0 4))) (or (< ~back~0 0) (not (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_#t~ret9#1.offset|)) 1)) (not (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_#t~ret9#1.offset| 4)) 1)) (<= c_~n~0 (+ ~back~0 3)) (not (= (select .cse0 (+ .cse1 8 |c_ULTIMATE.start_main_#t~ret9#1.offset|)) 1)) (<= c_~n~0 v_~front~0_148) (<= (let ((.cse2 (* ~front~0 4))) (+ (select .cse0 (+ .cse2 |c_ULTIMATE.start_main_#t~ret9#1.offset|)) c_~d~0 (select .cse0 (+ .cse2 8 |c_ULTIMATE.start_main_#t~ret9#1.offset|)) (select .cse0 (+ .cse2 |c_ULTIMATE.start_main_#t~ret9#1.offset| 4)) (select .cse0 (+ (* v_~front~0_148 4) |c_ULTIMATE.start_main_#t~ret9#1.offset|)))) 4) (< v_~front~0_148 (+ 3 ~front~0)) (< ~front~0 0) (not (= (select .cse0 (+ .cse1 12 |c_ULTIMATE.start_main_#t~ret9#1.offset|)) 1)))))) is different from false [2022-02-09 07:19:57,934 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_~front~0_148 Int) (v_ArrVal_935 (Array Int Int)) (v_ArrVal_934 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (~back~0 Int) (~front~0 Int)) (let ((.cse1 (* ~back~0 4)) (.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_934) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_935) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_936) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|))) (or (< ~back~0 0) (not (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset| 4)) 1)) (not (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) 1)) (<= c_~n~0 (+ ~back~0 3)) (not (= (select .cse0 (+ .cse1 8 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) 1)) (not (= (select .cse0 (+ .cse1 12 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) 1)) (<= c_~n~0 v_~front~0_148) (< v_~front~0_148 (+ 3 ~front~0)) (< ~front~0 0) (<= (let ((.cse2 (* ~front~0 4))) (+ (select .cse0 (+ .cse2 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) c_~d~0 (select .cse0 (+ .cse2 8 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)) (select .cse0 (+ .cse2 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset| 4)) (select .cse0 (+ (* v_~front~0_148 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) 4)))) (= (mod c_~v_assert~0 256) 0)) is different from false [2022-02-09 07:19:58,051 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod c_~v_assert~0 256) 0) (forall ((v_~front~0_148 Int) (v_ArrVal_935 (Array Int Int)) (v_ArrVal_934 (Array Int Int)) (v_ArrVal_936 (Array Int Int)) (~back~0 Int) (~front~0 Int)) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_934) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_935) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_936) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse1 (* ~back~0 4))) (or (< ~back~0 0) (not (= (select .cse0 (+ .cse1 12 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 1)) (<= (let ((.cse2 (* ~front~0 4))) (+ (select .cse0 (+ .cse2 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) c_~d~0 (select .cse0 (+ (* v_~front~0_148 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (select .cse0 (+ .cse2 8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (select .cse0 (+ .cse2 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) 4) (<= c_~n~0 (+ ~back~0 3)) (not (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 1)) (<= c_~n~0 v_~front~0_148) (< v_~front~0_148 (+ 3 ~front~0)) (not (= (select .cse0 (+ .cse1 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 1)) (< ~front~0 0) (not (= (select .cse0 (+ .cse1 8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 1)))))) is different from false [2022-02-09 07:20:07,130 INFO L353 Elim1Store]: treesize reduction 132, result has 22.8 percent of original size [2022-02-09 07:20:07,130 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 390 treesize of output 204 [2022-02-09 07:20:07,335 INFO L353 Elim1Store]: treesize reduction 267, result has 44.8 percent of original size [2022-02-09 07:20:07,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 982 treesize of output 1129 [2022-02-09 07:20:07,526 INFO L353 Elim1Store]: treesize reduction 267, result has 44.8 percent of original size [2022-02-09 07:20:07,527 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 913 treesize of output 917 [2022-02-09 07:20:07,712 INFO L353 Elim1Store]: treesize reduction 267, result has 44.8 percent of original size [2022-02-09 07:20:07,712 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 701 treesize of output 811 [2022-02-09 07:20:07,919 INFO L353 Elim1Store]: treesize reduction 267, result has 44.8 percent of original size [2022-02-09 07:20:07,919 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 528 treesize of output 691 Received shutdown request... [2022-02-09 07:27:45,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-09 07:27:45,813 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 07:27:45,813 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 [2022-02-09 07:27:45,813 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 [2022-02-09 07:27:45,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-02-09 07:27:46,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-02-09 07:27:46,007 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 185 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-5-5-1 context. [2022-02-09 07:27:46,008 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 07:27:46,009 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 07:27:46,009 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 07:27:46,013 INFO L732 BasicCegarLoop]: Path program histogram: [17, 5, 2, 1, 1, 1] [2022-02-09 07:27:46,015 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 07:27:46,015 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 07:27:46,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 07:27:46 BasicIcfg [2022-02-09 07:27:46,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 07:27:46,017 INFO L158 Benchmark]: Toolchain (without parser) took 852725.83ms. Allocated memory was 179.3MB in the beginning and 997.2MB in the end (delta: 817.9MB). Free memory was 121.8MB in the beginning and 625.3MB in the end (delta: -503.5MB). Peak memory consumption was 810.8MB. Max. memory is 8.0GB. [2022-02-09 07:27:46,017 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 138.6MB in the beginning and 138.5MB in the end (delta: 136.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 07:27:46,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.69ms. Allocated memory was 179.3MB in the beginning and 230.7MB in the end (delta: 51.4MB). Free memory was 121.6MB in the beginning and 202.2MB in the end (delta: -80.6MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2022-02-09 07:27:46,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.25ms. Allocated memory is still 230.7MB. Free memory was 202.2MB in the beginning and 200.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 07:27:46,018 INFO L158 Benchmark]: Boogie Preprocessor took 29.68ms. Allocated memory is still 230.7MB. Free memory was 200.1MB in the beginning and 198.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 07:27:46,018 INFO L158 Benchmark]: RCFGBuilder took 553.59ms. Allocated memory is still 230.7MB. Free memory was 198.5MB in the beginning and 178.1MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-02-09 07:27:46,018 INFO L158 Benchmark]: TraceAbstraction took 851848.82ms. Allocated memory was 230.7MB in the beginning and 997.2MB in the end (delta: 766.5MB). Free memory was 178.1MB in the beginning and 625.3MB in the end (delta: -447.2MB). Peak memory consumption was 816.3MB. Max. memory is 8.0GB. [2022-02-09 07:27:46,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 138.6MB in the beginning and 138.5MB in the end (delta: 136.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.69ms. Allocated memory was 179.3MB in the beginning and 230.7MB in the end (delta: 51.4MB). Free memory was 121.6MB in the beginning and 202.2MB in the end (delta: -80.6MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.25ms. Allocated memory is still 230.7MB. Free memory was 202.2MB in the beginning and 200.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.68ms. Allocated memory is still 230.7MB. Free memory was 200.1MB in the beginning and 198.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 553.59ms. Allocated memory is still 230.7MB. Free memory was 198.5MB in the beginning and 178.1MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 851848.82ms. Allocated memory was 230.7MB in the beginning and 997.2MB in the end (delta: 766.5MB). Free memory was 178.1MB in the beginning and 625.3MB in the end (delta: -447.2MB). Peak memory consumption was 816.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 94205, positive: 85009, positive conditional: 85009, positive unconditional: 0, negative: 9196, negative conditional: 9196, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 85383, positive: 85009, positive conditional: 85009, positive unconditional: 0, negative: 374, negative conditional: 374, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 85383, positive: 85009, positive conditional: 85009, positive unconditional: 0, negative: 374, negative conditional: 374, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 93095, positive: 85009, positive conditional: 84821, positive unconditional: 188, negative: 8086, negative conditional: 7712, negative unconditional: 374, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 93095, positive: 85009, positive conditional: 39437, positive unconditional: 45572, negative: 8086, negative conditional: 3345, negative unconditional: 4741, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 93095, positive: 85009, positive conditional: 39437, positive unconditional: 45572, negative: 8086, negative conditional: 3345, negative unconditional: 4741, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1768, positive: 1480, positive conditional: 914, positive unconditional: 566, negative: 288, negative conditional: 280, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1768, positive: 1229, positive conditional: 0, positive unconditional: 1229, negative: 539, negative conditional: 0, negative unconditional: 539, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 539, positive: 251, positive conditional: 250, positive unconditional: 1, negative: 282, negative conditional: 274, negative unconditional: 8, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1080, positive: 552, positive conditional: 551, positive unconditional: 1, negative: 516, negative conditional: 479, negative unconditional: 37, unknown: 12, unknown conditional: 12, unknown unconditional: 0] ], Cache Queries: [ total: 93095, positive: 83529, positive conditional: 38523, positive unconditional: 45006, negative: 7798, negative conditional: 3065, negative unconditional: 4733, unknown: 1768, unknown conditional: 1194, unknown unconditional: 574] , Statistics on independence cache: Total cache size (in pairs): 1768, Positive cache size: 1480, Positive conditional cache size: 914, Positive unconditional cache size: 566, Negative cache size: 288, Negative conditional cache size: 280, Negative unconditional cache size: 8, Eliminated conditions: 49751, Maximal queried relation: 22, Independence queries for same thread: 8822 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 185 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-5-5-1 context. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 185 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-5-5-1 context. - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 185 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-5-5-1 context. - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 185 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-5-5-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 173 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 851.7s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 119.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1419, 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: 0.4s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 243.7s InterpolantComputationTime, 7031 NumberOfCodeBlocks, 6950 NumberOfCodeBlocksAsserted, 70 NumberOfCheckSat, 10106 ConstructedInterpolants, 579 QuantifiedInterpolants, 160208 SizeOfPredicates, 592 NumberOfNonLiveVariables, 7454 ConjunctsInSsa, 952 ConjunctsInUnsatCore, 66 InterpolantComputations, 6 PerfectInterpolantSequences, 1323/3080 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