/usr/bin/java -Xmx16000000000 -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-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-13 17:25:32,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:25:32,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:25:32,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:25:32,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:25:32,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:25:32,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:25:32,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:25:32,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:25:32,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:25:32,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:25:32,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:25:32,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:25:32,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:25:32,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:25:32,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:25:32,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:25:32,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:25:32,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:25:32,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:25:32,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:25:32,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:25:32,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:25:32,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:25:32,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-13 17:25:32,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:25:32,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:25:32,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:25:32,310 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-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-11-13 17:25:32,340 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:25:32,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:25:32,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:25:32,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:25:32,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:25:32,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:25:32,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:25:32,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:25:32,342 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:25:32,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:25:32,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:25:32,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:25:32,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:25:32,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:25:32,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:25:32,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:25:32,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:25:32,344 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:25:32,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:25:32,344 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:25:32,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:25:32,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:25:32,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:25:32,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-13 17:25:32,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:25:32,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-13 17:25:32,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:25:32,346 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-13 17:25:32,346 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-13 17:25:32,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-13 17:25:32,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:25:32,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:25:32,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:25:32,593 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:25:32,595 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:25:32,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-5.i [2021-11-13 17:25:32,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3b7bc181/e00a5792432743a8b88fa514f267d813/FLAG80a0a8175 [2021-11-13 17:25:33,109 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:25:33,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-5.i [2021-11-13 17:25:33,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3b7bc181/e00a5792432743a8b88fa514f267d813/FLAG80a0a8175 [2021-11-13 17:25:33,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3b7bc181/e00a5792432743a8b88fa514f267d813 [2021-11-13 17:25:33,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:25:33,145 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 17:25:33,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:25:33,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:25:33,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:25:33,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7ad7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33, skipping insertion in model container [2021-11-13 17:25:33,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:25:33,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:25:33,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-5.i[30819,30832] [2021-11-13 17:25:33,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:25:33,528 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:25:33,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-5.i[30819,30832] [2021-11-13 17:25:33,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:25:33,618 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:25:33,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33 WrapperNode [2021-11-13 17:25:33,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:25:33,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:25:33,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:25:33,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:25:33,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:25:33,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:25:33,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:25:33,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:25:33,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:25:33,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:25:33,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:25:33,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:25:33,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (1/1) ... [2021-11-13 17:25:33,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:25:33,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 17:25:33,739 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) [2021-11-13 17:25:33,745 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 [2021-11-13 17:25:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-13 17:25:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-13 17:25:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-13 17:25:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-13 17:25:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:25:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 17:25:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-13 17:25:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:25:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:25:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:25:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 17:25:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:25:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:25:33,773 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 17:25:34,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:25:34,071 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 17:25:34,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:25:34 BoogieIcfgContainer [2021-11-13 17:25:34,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:25:34,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:25:34,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:25:34,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:25:34,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:25:33" (1/3) ... [2021-11-13 17:25:34,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434ba650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:25:34, skipping insertion in model container [2021-11-13 17:25:34,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:25:33" (2/3) ... [2021-11-13 17:25:34,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434ba650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:25:34, skipping insertion in model container [2021-11-13 17:25:34,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:25:34" (3/3) ... [2021-11-13 17:25:34,081 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-5.i [2021-11-13 17:25:34,086 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 17:25:34,086 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:25:34,086 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:25:34,086 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 17:25:34,122 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,123 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,123 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,124 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,124 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,124 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,124 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,124 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,124 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,125 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,125 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,125 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,125 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,125 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,125 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,126 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,126 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,126 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,126 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,126 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,127 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,127 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,127 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,127 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,130 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,130 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,130 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,130 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,130 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,136 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,136 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,136 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,136 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,136 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,140 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,140 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,140 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,141 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,141 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:25:34,141 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 17:25:34,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 17:25:34,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 17:25:34,200 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) [2021-11-13 17:25:34,223 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 [2021-11-13 17:25:34,238 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 17:25:34,245 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, 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 [2021-11-13 17:25:34,245 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 17:25:34,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 17:25:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:25:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2021-11-13 17:25:34,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:25:34,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915535575] [2021-11-13 17:25:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:25:34,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:25:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:25:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:34,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:25:34,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915535575] [2021-11-13 17:25:34,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915535575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:25:34,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:25:34,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:25:34,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436738185] [2021-11-13 17:25:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:25:34,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:25:34,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:25:34,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:25:34,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:25:34,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:34,636 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 17:25:34,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:25:34,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:34,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:34,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:25:34,653 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 17:25:34,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:25:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2021-11-13 17:25:34,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:25:34,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865912427] [2021-11-13 17:25:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:25:34,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:25:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:25:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:34,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:25:34,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865912427] [2021-11-13 17:25:34,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865912427] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:25:34,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:25:34,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:25:34,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823912367] [2021-11-13 17:25:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:25:34,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:25:34,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:25:34,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:25:34,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:25:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:34,731 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 17:25:34,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:25:34,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:34,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:25:34,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:25:34,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 17:25:34,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:25:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2021-11-13 17:25:34,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:25:34,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522498543] [2021-11-13 17:25:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:25:34,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:25:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:25:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:34,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:25:34,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522498543] [2021-11-13 17:25:34,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522498543] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:25:34,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765895876] [2021-11-13 17:25:34,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:25:34,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:25:34,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 17:25:34,851 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) [2021-11-13 17:25:34,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:25:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:25:34,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:25:35,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:25:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:35,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:25:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:35,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765895876] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:25:35,365 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:25:35,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 17:25:35,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274293745] [2021-11-13 17:25:35,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:25:35,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:25:35,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:25:35,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:25:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:25:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:35,370 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 17:25:35,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 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) [2021-11-13 17:25:35,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:35,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:25:35,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:25:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:25:35,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:25:35,699 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,SelfDestructingSolverStorable2 [2021-11-13 17:25:35,700 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 17:25:35,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:25:35,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2021-11-13 17:25:35,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:25:35,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168530559] [2021-11-13 17:25:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:25:35,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:25:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:25:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:35,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:25:35,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168530559] [2021-11-13 17:25:35,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168530559] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:25:35,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755800715] [2021-11-13 17:25:35,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:25:35,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:25:35,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 17:25:35,834 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) [2021-11-13 17:25:35,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 17:25:35,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:25:35,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:25:35,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:25:35,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:25:36,055 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:36,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:25:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:36,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755800715] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:25:36,256 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:25:36,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-13 17:25:36,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112306027] [2021-11-13 17:25:36,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:25:36,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-13 17:25:36,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:25:36,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 17:25:36,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:25:36,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:36,262 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 17:25:36,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2021-11-13 17:25:36,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:36,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:25:36,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:25:36,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:25:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:25:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:25:36,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:25:36,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:25:36,660 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 17:25:36,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:25:36,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2021-11-13 17:25:36,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:25:36,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114831575] [2021-11-13 17:25:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:25:36,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:25:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:25:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:36,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:25:36,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114831575] [2021-11-13 17:25:36,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114831575] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:25:36,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407281641] [2021-11-13 17:25:36,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:25:36,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:25:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 17:25:36,836 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) [2021-11-13 17:25:36,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 17:25:36,913 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-13 17:25:36,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:25:36,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 17:25:36,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:25:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:37,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:25:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:37,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407281641] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:25:37,433 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:25:37,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2021-11-13 17:25:37,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720089847] [2021-11-13 17:25:37,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:25:37,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 17:25:37,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:25:37,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 17:25:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2021-11-13 17:25:37,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:37,436 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 17:25:37,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 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) [2021-11-13 17:25:37,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:37,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:25:37,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:25:37,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:25:37,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:25:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:25:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:25:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:25:37,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-13 17:25:37,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:25:38,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:25:38,027 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 17:25:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:25:38,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1938020081, now seen corresponding path program 4 times [2021-11-13 17:25:38,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:25:38,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561193108] [2021-11-13 17:25:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:25:38,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:25:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:25:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:39,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:25:39,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561193108] [2021-11-13 17:25:39,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561193108] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:25:39,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111586011] [2021-11-13 17:25:39,314 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 17:25:39,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:25:39,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 17:25:39,316 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) [2021-11-13 17:25:39,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 17:25:39,391 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 17:25:39,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:25:39,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-13 17:25:39,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:25:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 335 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:25:42,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:30:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:30:45,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111586011] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:30:45,411 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 17:30:45,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 121 [2021-11-13 17:30:45,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065939064] [2021-11-13 17:30:45,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 17:30:45,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2021-11-13 17:30:45,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:30:45,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2021-11-13 17:30:45,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=13517, Unknown=57, NotChecked=0, Total=14520 [2021-11-13 17:30:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:30:45,418 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 17:30:45,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 121 states have (on average 3.15702479338843) internal successors, (382), 121 states have internal predecessors, (382), 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) [2021-11-13 17:30:45,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:30:45,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:30:45,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:30:45,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:30:45,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-13 17:30:45,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:37:48,331 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~next~0 1)) (.cse3 (+ c_~cur~0 4 (* 2 c_~next~0))) (.cse5 (* 34 c_~cur~0)) (.cse8 (* 55 c_~next~0)) (.cse6 (* 34 c_~prev~0)) (.cse4 (* 21 c_~prev~0)) (.cse2 (* c_~j~0 (- 1))) (.cse9 (* 34 c_~next~0)) (.cse0 (* c_~i~0 (- 1))) (.cse11 (+ c_~next~0 c_~cur~0 2)) (.cse10 (+ c_~next~0 c_~cur~0))) (and (<= (div (+ .cse0 c_~cur~0 (- 3)) (- 2)) .cse1) (<= (div (+ .cse2 c_~cur~0 (- 3)) (- 2)) .cse1) (<= (div (+ .cse2 (- 9) c_~next~0 c_~cur~0) (- 2)) .cse3) (<= 3 c_~cur~0) (<= 2 c_~prev~0) (<= (div (+ (- 9) .cse0 c_~next~0 c_~cur~0) (- 2)) .cse3) (<= 144 (+ .cse4 .cse5)) (<= 144 (+ .cse6 (* 55 c_~cur~0))) (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse7 (* 2 v_~cur~0_26))) (or (< aux_mod_v_~cur~0_22_51 0) (< v_~prev~0_24 (+ c_~next~0 v_~cur~0_26)) (<= 2 aux_mod_v_~cur~0_22_51) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))) (< v_~cur~0_26 (+ c_~next~0 c_~cur~0)) (< aux_div_v_~cur~0_22_51 (+ .cse7 c_~next~0 1)) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) .cse7 c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51)))))) (= c_~j~0 1) (<= 144 (+ .cse8 .cse5)) (<= 144 (+ .cse8 .cse6)) (forall ((v_~cur~0_22 Int)) (or (< v_~cur~0_22 c_~next~0) (and (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~cur~0 (* 2 aux_div_v_~next~0_20_56))) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))))) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ (* 2 c_~j~0) 22 (* 2 aux_mod_v_~next~0_20_56))) (< (+ aux_mod_v_~next~0_20_56 9 c_~j~0) (+ (* 2 v_~cur~0_22) c_~cur~0 (* 2 aux_div_v_~next~0_20_56))) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0)))))) (<= c_~i~0 1) (= c_~i~0 1) (<= 1 c_~prev~0) (<= 2 c_~next~0) (<= 144 (+ .cse4 .cse9)) (< c_~i~0 .cse10) (<= (div (+ .cse2 c_~next~0 (- 5)) (- 2)) .cse11) (<= 144 (+ (* 21 c_~cur~0) .cse9)) (<= c_~j~0 1) (forall ((v_~prev~0_24 Int)) (or (< v_~prev~0_24 c_~cur~0) (and (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< aux_mod_v_~cur~0_22_51 0) (<= 2 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ c_~next~0 1)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51))) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0))) (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< aux_mod_v_~cur~0_22_51 0) (<= 2 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ c_~next~0 1)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 (* 2 c_~j~0) aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56))) (<= 2 aux_mod_v_~next~0_20_56) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51))) (< aux_mod_v_~next~0_20_56 0)))))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< v_~cur~0_22 (+ c_~next~0 c_~cur~0)) (<= 2 aux_mod_v_~next~0_20_56) (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~next~0 (* 2 aux_div_v_~next~0_20_56))) (< aux_mod_v_~next~0_20_56 0) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))))) (<= (div (+ .cse0 c_~next~0 (- 5)) (- 2)) .cse11) (< c_~j~0 .cse10) (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse12 (* 2 v_~cur~0_26))) (or (< aux_mod_v_~cur~0_22_51 0) (< v_~prev~0_24 (+ c_~next~0 v_~cur~0_26)) (<= 2 aux_mod_v_~cur~0_22_51) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) .cse12 c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51))) (< v_~cur~0_26 (+ c_~next~0 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 (* 2 c_~j~0) aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56))) (< aux_div_v_~cur~0_22_51 (+ .cse12 c_~next~0 1)) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0)))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ (* 2 c_~j~0) 22 (* 2 aux_mod_v_~next~0_20_56))) (< v_~cur~0_22 (+ c_~next~0 c_~cur~0)) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0) (< (+ aux_mod_v_~next~0_20_56 9 c_~j~0) (+ (* 2 v_~cur~0_22) c_~next~0 (* 2 aux_div_v_~next~0_20_56))))))) is different from false [2021-11-13 17:37:52,951 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~next~0 1)) (.cse3 (+ c_~cur~0 4 (* 2 c_~next~0))) (.cse5 (* 34 c_~cur~0)) (.cse8 (* 55 c_~next~0)) (.cse6 (* 34 c_~prev~0)) (.cse9 (* 13 c_~prev~0)) (.cse4 (* 21 c_~prev~0)) (.cse2 (* c_~j~0 (- 1))) (.cse10 (* 21 c_~cur~0)) (.cse11 (* 34 c_~next~0)) (.cse0 (* c_~i~0 (- 1))) (.cse13 (+ c_~next~0 c_~cur~0 2)) (.cse12 (+ c_~next~0 c_~cur~0))) (and (<= (div (+ .cse0 c_~cur~0 (- 3)) (- 2)) .cse1) (<= (div (+ .cse2 c_~cur~0 (- 3)) (- 2)) .cse1) (<= (div (+ .cse2 (- 9) c_~next~0 c_~cur~0) (- 2)) .cse3) (<= 3 c_~prev~0) (<= (div (+ (- 9) .cse0 c_~next~0 c_~cur~0) (- 2)) .cse3) (<= 144 (+ .cse4 .cse5)) (<= 144 (+ .cse6 (* 55 c_~cur~0))) (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse7 (* 2 v_~cur~0_26))) (or (< aux_mod_v_~cur~0_22_51 0) (< v_~prev~0_24 (+ c_~next~0 v_~cur~0_26)) (<= 2 aux_mod_v_~cur~0_22_51) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))) (< v_~cur~0_26 (+ c_~next~0 c_~cur~0)) (< aux_div_v_~cur~0_22_51 (+ .cse7 c_~next~0 1)) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) .cse7 c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51)))))) (= c_~j~0 1) (<= 144 (+ .cse8 .cse5)) (<= 144 (+ .cse8 .cse6)) (<= 144 (+ .cse9 .cse10)) (forall ((v_~cur~0_22 Int)) (or (< v_~cur~0_22 c_~next~0) (and (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~cur~0 (* 2 aux_div_v_~next~0_20_56))) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))))) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ (* 2 c_~j~0) 22 (* 2 aux_mod_v_~next~0_20_56))) (< (+ aux_mod_v_~next~0_20_56 9 c_~j~0) (+ (* 2 v_~cur~0_22) c_~cur~0 (* 2 aux_div_v_~next~0_20_56))) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0)))))) (<= c_~i~0 1) (<= 5 c_~cur~0) (= c_~i~0 1) (<= 1 c_~prev~0) (<= 2 c_~next~0) (<= 144 (+ .cse9 (* 21 c_~next~0))) (<= 144 (+ .cse4 .cse11)) (< c_~i~0 .cse12) (<= (div (+ .cse2 c_~next~0 (- 5)) (- 2)) .cse13) (<= 144 (+ .cse10 .cse11)) (<= c_~j~0 1) (forall ((v_~prev~0_24 Int)) (or (< v_~prev~0_24 c_~cur~0) (and (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< aux_mod_v_~cur~0_22_51 0) (<= 2 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ c_~next~0 1)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))) (< (+ aux_mod_v_~next~0_20_56 c_~i~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51))) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0))) (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< aux_mod_v_~cur~0_22_51 0) (<= 2 aux_mod_v_~cur~0_22_51) (< aux_div_v_~cur~0_22_51 (+ c_~next~0 1)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 (* 2 c_~j~0) aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56))) (<= 2 aux_mod_v_~next~0_20_56) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51))) (< aux_mod_v_~next~0_20_56 0)))))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< v_~cur~0_22 (+ c_~next~0 c_~cur~0)) (<= 2 aux_mod_v_~next~0_20_56) (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~next~0 (* 2 aux_div_v_~next~0_20_56))) (< aux_mod_v_~next~0_20_56 0) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 aux_mod_v_~next~0_20_56) (* 2 c_~i~0))))) (<= (div (+ .cse0 c_~next~0 (- 5)) (- 2)) .cse13) (< c_~j~0 .cse12) (forall ((aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse14 (* 2 v_~cur~0_26))) (or (< aux_mod_v_~cur~0_22_51 0) (< v_~prev~0_24 (+ c_~next~0 v_~cur~0_26)) (<= 2 aux_mod_v_~cur~0_22_51) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 (* 2 aux_mod_v_~cur~0_22_51) 11) (+ (* 3 v_~prev~0_24) .cse14 c_~next~0 (* 2 aux_div_v_~next~0_20_56) (* 4 aux_div_v_~cur~0_22_51))) (< v_~cur~0_26 (+ c_~next~0 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 (* 2 c_~j~0) aux_mod_v_~cur~0_22_51 (* 2 aux_mod_v_~next~0_20_56))) (< aux_div_v_~cur~0_22_51 (+ .cse14 c_~next~0 1)) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0)))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ (* 2 c_~j~0) 22 (* 2 aux_mod_v_~next~0_20_56))) (< v_~cur~0_22 (+ c_~next~0 c_~cur~0)) (<= 2 aux_mod_v_~next~0_20_56) (< aux_mod_v_~next~0_20_56 0) (< (+ aux_mod_v_~next~0_20_56 9 c_~j~0) (+ (* 2 v_~cur~0_22) c_~next~0 (* 2 aux_div_v_~next~0_20_56))))))) is different from false Received shutdown request... [2021-11-13 17:39:57,807 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 [2021-11-13 17:39:57,807 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 [2021-11-13 17:39:57,807 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-11-13 17:39:58,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:39:58,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:39:59,027 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-13 17:39:59,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2021-11-13 17:39:59,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:39:59,113 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2021-11-13 17:39:59,115 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-13 17:39:59,115 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-13 17:39:59,116 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-13 17:39:59,122 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2021-11-13 17:39:59,124 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 17:39:59,124 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:39:59,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:39:59 BasicIcfg [2021-11-13 17:39:59,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 17:39:59,127 INFO L158 Benchmark]: Toolchain (without parser) took 865982.10ms. Allocated memory was 369.1MB in the beginning and 478.2MB in the end (delta: 109.1MB). Free memory was 314.4MB in the beginning and 270.3MB in the end (delta: 44.1MB). Peak memory consumption was 153.5MB. Max. memory is 16.0GB. [2021-11-13 17:39:59,131 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 369.1MB. Free memory is still 332.0MB. There was no memory consumed. Max. memory is 16.0GB. [2021-11-13 17:39:59,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.24ms. Allocated memory is still 369.1MB. Free memory was 314.2MB in the beginning and 332.6MB in the end (delta: -18.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.0GB. [2021-11-13 17:39:59,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.49ms. Allocated memory is still 369.1MB. Free memory was 332.6MB in the beginning and 330.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-13 17:39:59,135 INFO L158 Benchmark]: Boogie Preprocessor took 27.74ms. Allocated memory is still 369.1MB. Free memory was 330.8MB in the beginning and 329.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-13 17:39:59,135 INFO L158 Benchmark]: RCFGBuilder took 364.71ms. Allocated memory is still 369.1MB. Free memory was 329.1MB in the beginning and 317.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2021-11-13 17:39:59,139 INFO L158 Benchmark]: TraceAbstraction took 865051.63ms. Allocated memory was 369.1MB in the beginning and 478.2MB in the end (delta: 109.1MB). Free memory was 316.9MB in the beginning and 270.3MB in the end (delta: 46.6MB). Peak memory consumption was 156.3MB. Max. memory is 16.0GB. [2021-11-13 17:39:59,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 369.1MB. Free memory is still 332.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 471.24ms. Allocated memory is still 369.1MB. Free memory was 314.2MB in the beginning and 332.6MB in the end (delta: -18.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.49ms. Allocated memory is still 369.1MB. Free memory was 332.6MB in the beginning and 330.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.74ms. Allocated memory is still 369.1MB. Free memory was 330.8MB in the beginning and 329.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 364.71ms. Allocated memory is still 369.1MB. Free memory was 329.1MB in the beginning and 317.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 865051.63ms. Allocated memory was 369.1MB in the beginning and 478.2MB in the end (delta: 109.1MB). Free memory was 316.9MB in the beginning and 270.3MB in the end (delta: 46.6MB). Peak memory consumption was 156.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1940, positive: 1834, positive conditional: 1047, positive unconditional: 787, negative: 106, negative conditional: 103, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 1047, positive unconditional: 787, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 1047, positive unconditional: 787, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 799, positive unconditional: 1035, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 206, positive unconditional: 1628, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 206, positive unconditional: 1628, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 778, positive: 775, positive conditional: 0, positive unconditional: 775, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 778, positive: 775, positive conditional: 0, positive unconditional: 775, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1837, positive: 1059, positive conditional: 206, positive unconditional: 853, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 778, unknown conditional: 0, unknown unconditional: 778] , Statistics on independence cache: Total cache size (in pairs): 778, Positive cache size: 775, Positive conditional cache size: 0, Positive unconditional cache size: 775, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 593, Maximal queried relation: 0, Independence queries for same thread: 103 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 69.24ms, Number of persistent set computation: 59, Number of trivial persistent sets: 33, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 790, positive: 787, positive conditional: 0, positive unconditional: 787, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1940, positive: 1834, positive conditional: 1047, positive unconditional: 787, negative: 106, negative conditional: 103, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 1047, positive unconditional: 787, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 1047, positive unconditional: 787, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 799, positive unconditional: 1035, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 206, positive unconditional: 1628, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1837, positive: 1834, positive conditional: 206, positive unconditional: 1628, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 778, positive: 775, positive conditional: 0, positive unconditional: 775, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 778, positive: 775, positive conditional: 0, positive unconditional: 775, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1837, positive: 1059, positive conditional: 206, positive unconditional: 853, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 778, unknown conditional: 0, unknown unconditional: 778] , Statistics on independence cache: Total cache size (in pairs): 778, Positive cache size: 775, Positive conditional cache size: 0, Positive unconditional cache size: 775, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 593, Maximal queried relation: 0, Independence queries for same thread: 103 - 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: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 864.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 554.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 96, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 309.0s InterpolantComputationTime, 852 NumberOfCodeBlocks, 837 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1211 ConstructedInterpolants, 74 QuantifiedInterpolants, 14639 SizeOfPredicates, 62 NumberOfNonLiveVariables, 759 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 335/1959 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