/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:06:05,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:06:05,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:06:05,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 03:06:05,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 03:06:05,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 03:06:05,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 03:06:05,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 03:06:05,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 03:06:05,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 03:06:05,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 03:06:05,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 03:06:05,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:06:05,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:06:05,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:06:05,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:06:05,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:06:05,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:06:05,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:06:05,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:06:05,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:06:05,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:06:05,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:06:05,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:06:05,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 03:06:05,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 03:06:05,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 03:06:05,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 03:06:05,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 03:06:05,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 03:06:05,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 03:06:05,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 03:06:05,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 03:06:05,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 03:06:05,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 03:06:05,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 03:06:05,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 03:06:05,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 03:06:05,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:06:05,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:06:05,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:06:05,650 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-MCRwithDepranks-Lazy.epf [2022-02-20 03:06:05,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:06:05,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:06:05,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:06:05,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:06:05,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:06:05,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:06:05,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:06:05,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:06:05,683 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:06:05,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:06:05,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:06:05,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:06:05,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:06:05,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:06:05,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:06:05,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:06:05,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:06:05,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:06:05,685 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:06:05,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:06:05,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:06:05,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:06:05,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:06:05,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:06:05,948 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 03:06:05,950 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 03:06:05,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-02-20 03:06:05,951 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-02-20 03:06:05,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:06:05,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 03:06:05,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:06:05,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:06:05,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:06:05,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:05,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:05,997 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 03:06:05,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:06:06,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:06:06,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:06:06,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:06:06,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:06:06,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:06:06,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:06:06,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:06:06,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/1) ... [2022-02-20 03:06:06,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:06:06,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:06,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 03:06:06,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 03:06:06,093 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 03:06:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 03:06:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 03:06:06,094 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 03:06:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 03:06:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 03:06:06,094 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 03:06:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:06:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:06:06,095 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:06:06,134 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:06:06,135 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:06:06,240 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:06:06,245 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:06:06,246 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:06:06,247 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:06:06 BoogieIcfgContainer [2022-02-20 03:06:06,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:06:06,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:06:06,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:06:06,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:06:06,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:06:05" (1/2) ... [2022-02-20 03:06:06,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f0fc7 and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:06:06, skipping insertion in model container [2022-02-20 03:06:06,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:06:06" (2/2) ... [2022-02-20 03:06:06,263 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-02-20 03:06:06,266 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:06:06,267 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:06:06,267 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:06:06,267 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:06:06,299 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,300 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,300 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,300 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,300 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,301 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,302 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,302 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,302 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,302 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,302 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,303 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,303 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,303 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,303 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,303 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,304 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,304 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,304 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,304 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,307 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,309 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:06:06,310 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-20 03:06:06,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:06:06,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:06,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 03:06:06,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 03:06:06,412 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:06:06,417 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 03:06:06,417 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 03:06:06,511 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 562 transitions and produced 454 states. [2022-02-20 03:06:06,513 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:06:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:06:06,517 INFO L85 PathProgramCache]: Analyzing trace with hash -337619345, now seen corresponding path program 1 times [2022-02-20 03:06:06,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:06:06,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146349659] [2022-02-20 03:06:06,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:06:06,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:06:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:06:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 976 proven. 872 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-20 03:06:07,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:06:07,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146349659] [2022-02-20 03:06:07,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146349659] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:06:07,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014062997] [2022-02-20 03:06:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:06:07,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:07,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:07,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:06:07,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 03:06:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:06:07,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-20 03:06:07,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:06:09,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1068 proven. 792 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:09,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:06:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 976 proven. 872 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-20 03:06:09,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014062997] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:06:09,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:06:09,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 34, 30] total 83 [2022-02-20 03:06:09,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913157236] [2022-02-20 03:06:09,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:06:09,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-02-20 03:06:09,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:06:09,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-02-20 03:06:09,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1780, Invalid=5026, Unknown=0, NotChecked=0, Total=6806 [2022-02-20 03:06:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:09,973 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:06:09,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 5.445783132530121) internal successors, (452), 83 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:06:09,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:12,582 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 796 transitions and produced 688 states. [2022-02-20 03:06:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:12,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 03:06:12,819 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,SelfDestructingSolverStorable0 [2022-02-20 03:06:12,819 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:06:12,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:06:12,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1400513483, now seen corresponding path program 2 times [2022-02-20 03:06:12,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:06:12,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519153956] [2022-02-20 03:06:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:06:12,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:06:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:06:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3751 backedges. 1857 proven. 1894 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:14,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:06:14,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519153956] [2022-02-20 03:06:14,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519153956] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:06:14,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433414789] [2022-02-20 03:06:14,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 03:06:14,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:14,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:14,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:06:14,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 03:06:14,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 03:06:14,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:06:14,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 54 conjunts are in the unsatisfiable core [2022-02-20 03:06:14,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:06:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3751 backedges. 1712 proven. 1874 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-20 03:06:16,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:06:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3751 backedges. 1712 proven. 1874 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-20 03:06:17,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433414789] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:06:17,055 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:06:17,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 55, 55] total 111 [2022-02-20 03:06:17,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731028064] [2022-02-20 03:06:17,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:06:17,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2022-02-20 03:06:17,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:06:17,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2022-02-20 03:06:17,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2137, Invalid=10073, Unknown=0, NotChecked=0, Total=12210 [2022-02-20 03:06:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:17,062 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:06:17,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 4.153153153153153) internal successors, (461), 111 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:06:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:17,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:17,188 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 617 transitions and produced 607 states. [2022-02-20 03:06:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:17,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 03:06:17,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:17,410 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:06:17,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:06:17,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2038718631, now seen corresponding path program 3 times [2022-02-20 03:06:17,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:06:17,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098106465] [2022-02-20 03:06:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:06:17,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:06:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:06:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 1857 proven. 2045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:18,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:06:18,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098106465] [2022-02-20 03:06:18,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098106465] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:06:18,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505356402] [2022-02-20 03:06:18,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 03:06:18,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:18,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:18,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:06:18,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 03:06:18,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2022-02-20 03:06:18,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:06:18,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-20 03:06:18,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:06:21,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 1857 proven. 2045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:21,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:06:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3902 backedges. 1857 proven. 2045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:22,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505356402] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:06:22,968 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:06:22,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 148 [2022-02-20 03:06:22,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372791334] [2022-02-20 03:06:22,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:06:22,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 148 states [2022-02-20 03:06:22,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:06:22,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2022-02-20 03:06:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4062, Invalid=17694, Unknown=0, NotChecked=0, Total=21756 [2022-02-20 03:06:22,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:22,980 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:06:22,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 148 states, 148 states have (on average 4.25) internal successors, (629), 148 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:06:22,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:22,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:22,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:23,219 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 734 transitions and produced 724 states. [2022-02-20 03:06:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:06:23,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 03:06:23,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:23,438 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:06:23,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:06:23,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1726272355, now seen corresponding path program 4 times [2022-02-20 03:06:23,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:06:23,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698560327] [2022-02-20 03:06:23,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:06:23,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:06:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:06:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5531 backedges. 1857 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:25,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:06:25,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698560327] [2022-02-20 03:06:25,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698560327] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:06:25,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465473043] [2022-02-20 03:06:25,008 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 03:06:25,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:25,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:25,009 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:06:25,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 03:06:25,181 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 03:06:25,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:06:25,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 74 conjunts are in the unsatisfiable core [2022-02-20 03:06:25,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:06:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 5531 backedges. 1857 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:28,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:06:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5531 backedges. 1857 proven. 3674 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:28,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465473043] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:06:28,813 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:06:28,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75, 75] total 131 [2022-02-20 03:06:28,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418807323] [2022-02-20 03:06:28,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:06:28,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-02-20 03:06:28,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:06:28,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-02-20 03:06:28,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2912, Invalid=14118, Unknown=0, NotChecked=0, Total=17030 [2022-02-20 03:06:28,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:28,819 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:06:28,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 4.190839694656488) internal successors, (549), 131 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:06:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:06:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:29,173 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 747 transitions and produced 737 states. [2022-02-20 03:06:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:06:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:06:29,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 03:06:29,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:29,375 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:06:29,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:06:29,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1599930817, now seen corresponding path program 5 times [2022-02-20 03:06:29,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:06:29,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251462197] [2022-02-20 03:06:29,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:06:29,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:06:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:06:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5742 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:06:36,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:06:36,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251462197] [2022-02-20 03:06:36,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251462197] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:06:36,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843423994] [2022-02-20 03:06:36,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 03:06:36,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:36,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:36,083 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:06:36,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 03:06:36,227 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2022-02-20 03:06:36,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:06:36,244 WARN L261 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 363 conjunts are in the unsatisfiable core [2022-02-20 03:06:36,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:06:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5742 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:06:37,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:06:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5742 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:06:37,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843423994] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:06:37,985 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:06:37,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [141, 141, 141] total 141 [2022-02-20 03:06:37,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408350386] [2022-02-20 03:06:37,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:06:37,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-02-20 03:06:37,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:06:37,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-02-20 03:06:37,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=20023, Unknown=0, NotChecked=0, Total=20306 [2022-02-20 03:06:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:37,996 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:06:37,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 2.323943661971831) internal successors, (330), 142 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:06:37,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:37,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:37,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:06:37,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:06:37,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:43,580 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 992 transitions and produced 982 states. [2022-02-20 03:06:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:06:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:06:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:06:43,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-20 03:06:43,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:43,782 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:06:43,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:06:43,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1591010011, now seen corresponding path program 6 times [2022-02-20 03:06:43,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:06:43,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409322016] [2022-02-20 03:06:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:06:43,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:06:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:06:46,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10891 backedges. 4734 proven. 6157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:46,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:06:46,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409322016] [2022-02-20 03:06:46,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409322016] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:06:46,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574593997] [2022-02-20 03:06:46,058 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 03:06:46,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:06:46,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:06:46,060 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:06:46,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 03:06:46,240 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2022-02-20 03:06:46,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:06:46,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 94 conjunts are in the unsatisfiable core [2022-02-20 03:06:46,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:06:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 10891 backedges. 8640 proven. 2251 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:50,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:06:52,455 INFO L134 CoverageAnalysis]: Checked inductivity of 10891 backedges. 4734 proven. 6157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:06:52,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574593997] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:06:52,455 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:06:52,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 205 [2022-02-20 03:06:52,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370288013] [2022-02-20 03:06:52,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:06:52,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 205 states [2022-02-20 03:06:52,458 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:06:52,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2022-02-20 03:06:52,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7826, Invalid=33994, Unknown=0, NotChecked=0, Total=41820 [2022-02-20 03:06:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:06:52,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:06:52,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 205 states, 205 states have (on average 4.668292682926829) internal successors, (957), 205 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:06:52,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:06:52,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:06:52,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:06:52,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:06:52,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:06:52,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:07:00,088 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1323 transitions and produced 1194 states. [2022-02-20 03:07:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:07:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:07:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:07:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:07:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:07:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:07:00,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 03:07:00,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:07:00,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:07:00,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:07:00,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1645087373, now seen corresponding path program 7 times [2022-02-20 03:07:00,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:07:00,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328482129] [2022-02-20 03:07:00,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:07:00,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:07:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:07:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 13475 backedges. 0 proven. 13469 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:07:17,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:07:17,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328482129] [2022-02-20 03:07:17,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328482129] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:07:17,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080348673] [2022-02-20 03:07:17,807 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 03:07:17,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:07:17,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:07:17,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:07:17,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 03:07:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:07:17,964 WARN L261 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 553 conjunts are in the unsatisfiable core [2022-02-20 03:07:17,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:07:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13475 backedges. 0 proven. 13469 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:07:19,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:07:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 13475 backedges. 0 proven. 13469 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:07:21,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080348673] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:07:21,064 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:07:21,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [217, 217, 217] total 217 [2022-02-20 03:07:21,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481434804] [2022-02-20 03:07:21,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:07:21,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 219 states [2022-02-20 03:07:21,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:07:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 219 interpolants. [2022-02-20 03:07:21,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=47307, Unknown=0, NotChecked=0, Total=47742 [2022-02-20 03:07:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:07:21,070 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:07:21,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 219 states, 218 states have (on average 2.2981651376146788) internal successors, (501), 218 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:07:21,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:07:21,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:07:21,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:07:21,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:07:21,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:07:21,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:07:21,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:07:31,665 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1368 transitions and produced 1340 states. [2022-02-20 03:07:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:07:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:07:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:07:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:07:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:07:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:07:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:07:31,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-20 03:07:31,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-20 03:07:31,867 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:07:31,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:07:31,868 INFO L85 PathProgramCache]: Analyzing trace with hash -857774669, now seen corresponding path program 8 times [2022-02-20 03:07:31,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:07:31,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324437104] [2022-02-20 03:07:31,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:07:31,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:07:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:07:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 9883 proven. 10907 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:07:35,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:07:35,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324437104] [2022-02-20 03:07:35,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324437104] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:07:35,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501784401] [2022-02-20 03:07:35,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 03:07:35,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:07:35,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:07:35,278 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:07:35,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-20 03:07:35,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 03:07:35,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:07:35,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 132 conjunts are in the unsatisfiable core [2022-02-20 03:07:35,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:07:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 15841 proven. 4949 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:07:40,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:07:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 9883 proven. 10907 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:07:44,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501784401] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:07:44,571 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:07:44,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 133, 133] total 262 [2022-02-20 03:07:44,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642870337] [2022-02-20 03:07:44,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:07:44,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 262 states [2022-02-20 03:07:44,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:07:44,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 262 interpolants. [2022-02-20 03:07:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12842, Invalid=55540, Unknown=0, NotChecked=0, Total=68382 [2022-02-20 03:07:44,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:07:44,580 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:07:44,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 262 states, 262 states have (on average 4.522900763358779) internal successors, (1185), 262 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:07:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:07:57,235 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1703 transitions and produced 1556 states. [2022-02-20 03:07:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:07:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:07:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:07:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:07:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:07:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:07:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:07:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:07:57,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-20 03:07:57,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:07:57,455 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:07:57,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:07:57,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1985458407, now seen corresponding path program 9 times [2022-02-20 03:07:57,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:07:57,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61632078] [2022-02-20 03:07:57,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:07:57,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:07:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:08:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 24457 backedges. 0 proven. 24451 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:08:20,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:08:20,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61632078] [2022-02-20 03:08:20,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61632078] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:08:20,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926252023] [2022-02-20 03:08:20,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 03:08:20,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:08:20,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:08:20,877 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:08:20,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-20 03:08:21,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 75 check-sat command(s) [2022-02-20 03:08:21,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:08:21,179 WARN L261 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 743 conjunts are in the unsatisfiable core [2022-02-20 03:08:21,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:08:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 24457 backedges. 0 proven. 24451 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:08:23,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:08:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 24457 backedges. 0 proven. 24451 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:08:26,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926252023] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:08:26,118 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:08:26,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [293, 293, 293] total 293 [2022-02-20 03:08:26,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196156512] [2022-02-20 03:08:26,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:08:26,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 295 states [2022-02-20 03:08:26,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:08:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 295 interpolants. [2022-02-20 03:08:26,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=587, Invalid=86143, Unknown=0, NotChecked=0, Total=86730 [2022-02-20 03:08:26,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:08:26,124 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:08:26,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 295 states, 294 states have (on average 2.2857142857142856) internal successors, (672), 294 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:08:26,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:08:26,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:08:49,356 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1748 transitions and produced 1702 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:08:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:08:49,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-20 03:08:49,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-20 03:08:49,558 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:08:49,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:08:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1949507507, now seen corresponding path program 10 times [2022-02-20 03:08:49,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:08:49,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077037600] [2022-02-20 03:08:49,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:08:49,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:08:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:08:55,855 INFO L134 CoverageAnalysis]: Checked inductivity of 33938 backedges. 17198 proven. 16740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:08:55,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:08:55,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077037600] [2022-02-20 03:08:55,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077037600] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:08:55,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496132229] [2022-02-20 03:08:55,855 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 03:08:55,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:08:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:08:55,857 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:08:55,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-20 03:08:56,064 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 03:08:56,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:08:56,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 170 conjunts are in the unsatisfiable core [2022-02-20 03:08:56,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:09:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 33938 backedges. 25208 proven. 8730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:09:01,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:09:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 33938 backedges. 17198 proven. 16740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:09:05,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496132229] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:09:05,321 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:09:05,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [171, 171, 171] total 319 [2022-02-20 03:09:05,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61879136] [2022-02-20 03:09:05,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:09:05,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 319 states [2022-02-20 03:09:05,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:09:05,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 319 interpolants. [2022-02-20 03:09:05,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19302, Invalid=82140, Unknown=0, NotChecked=0, Total=101442 [2022-02-20 03:09:05,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:09:05,361 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:09:05,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 319 states, 319 states have (on average 4.429467084639499) internal successors, (1413), 319 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:09:05,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:09:05,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:09:05,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:09:05,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:09:05,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:09:05,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:09:05,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:09:05,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:09:05,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:09:05,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:09:22,890 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2083 transitions and produced 1918 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:09:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:09:22,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-20 03:09:23,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-20 03:09:23,099 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:09:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:09:23,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1522509515, now seen corresponding path program 11 times [2022-02-20 03:09:23,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:09:23,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662944599] [2022-02-20 03:09:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:09:23,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:09:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:10:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 38688 backedges. 0 proven. 38682 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:10:09,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:10:09,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662944599] [2022-02-20 03:10:09,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662944599] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:10:09,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537096096] [2022-02-20 03:10:09,753 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 03:10:09,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:10:09,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:10:09,754 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:10:09,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-20 03:10:10,143 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 94 check-sat command(s) [2022-02-20 03:10:10,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:10:10,184 WARN L261 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 933 conjunts are in the unsatisfiable core [2022-02-20 03:10:10,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:10:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 38688 backedges. 0 proven. 38682 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:10:13,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:10:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 38688 backedges. 0 proven. 38682 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:10:15,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537096096] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:10:15,930 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:10:15,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [369, 369, 369] total 369 [2022-02-20 03:10:15,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886784551] [2022-02-20 03:10:15,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:10:15,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 371 states [2022-02-20 03:10:15,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:10:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 371 interpolants. [2022-02-20 03:10:15,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=739, Invalid=136531, Unknown=0, NotChecked=0, Total=137270 [2022-02-20 03:10:15,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:10:15,937 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:10:15,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 371 states, 370 states have (on average 2.2783783783783784) internal successors, (843), 370 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:10:15,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:10:15,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:10:15,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:10:15,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:10:42,051 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2128 transitions and produced 2064 states. [2022-02-20 03:10:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:10:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:10:42,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-20 03:10:42,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-20 03:10:42,280 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:10:42,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:10:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash -245041957, now seen corresponding path program 12 times [2022-02-20 03:10:42,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:10:42,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666460314] [2022-02-20 03:10:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:10:42,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:10:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:10:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 50335 backedges. 26679 proven. 23656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:10:51,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:10:51,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666460314] [2022-02-20 03:10:51,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666460314] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:10:51,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909974697] [2022-02-20 03:10:51,060 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 03:10:51,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:10:51,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:10:51,061 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:10:51,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-20 03:10:51,537 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 113 check-sat command(s) [2022-02-20 03:10:51,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:10:51,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 208 conjunts are in the unsatisfiable core [2022-02-20 03:10:51,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:10:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 50335 backedges. 36741 proven. 13594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:10:59,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:11:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 50335 backedges. 26679 proven. 23656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:11:03,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909974697] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:11:03,608 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:11:03,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [209, 209, 209] total 376 [2022-02-20 03:11:03,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947134261] [2022-02-20 03:11:03,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:11:03,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 376 states [2022-02-20 03:11:03,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:11:03,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 376 interpolants. [2022-02-20 03:11:03,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27206, Invalid=113794, Unknown=0, NotChecked=0, Total=141000 [2022-02-20 03:11:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:11:03,621 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:11:03,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 376 states, 376 states have (on average 4.36436170212766) internal successors, (1641), 376 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:11:03,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:11:30,354 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2463 transitions and produced 2280 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:11:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:11:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:11:30,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-20 03:11:30,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-20 03:11:30,560 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:11:30,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:11:30,560 INFO L85 PathProgramCache]: Analyzing trace with hash 827606129, now seen corresponding path program 13 times [2022-02-20 03:11:30,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:11:30,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178064178] [2022-02-20 03:11:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:11:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:11:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:12:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 56168 backedges. 0 proven. 56162 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:12:17,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:12:17,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178064178] [2022-02-20 03:12:17,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178064178] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:12:17,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905908786] [2022-02-20 03:12:17,018 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 03:12:17,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:12:17,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:12:17,032 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:12:17,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-20 03:12:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:12:17,338 WARN L261 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 1123 conjunts are in the unsatisfiable core [2022-02-20 03:12:17,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:12:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 56168 backedges. 0 proven. 56162 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:12:20,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:12:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 56168 backedges. 0 proven. 56162 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:12:24,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905908786] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:12:24,135 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:12:24,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [445, 445, 445] total 445 [2022-02-20 03:12:24,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740140983] [2022-02-20 03:12:24,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:12:24,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 447 states [2022-02-20 03:12:24,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:12:24,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 447 interpolants. [2022-02-20 03:12:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=891, Invalid=198471, Unknown=0, NotChecked=0, Total=199362 [2022-02-20 03:12:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:12:24,144 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:12:24,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 447 states, 446 states have (on average 2.273542600896861) internal successors, (1014), 446 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:12:24,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:12:24,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:12:24,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:12:24,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:12:24,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:12:24,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:13:04,630 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2508 transitions and produced 2426 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:13:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:13:04,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-20 03:13:04,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:13:04,852 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:13:04,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:13:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2140953461, now seen corresponding path program 14 times [2022-02-20 03:13:04,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:13:04,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561523388] [2022-02-20 03:13:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:13:04,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:13:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:13:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 69981 backedges. 38326 proven. 31655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:13:19,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:13:19,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561523388] [2022-02-20 03:13:19,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561523388] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:13:19,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308884713] [2022-02-20 03:13:19,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 03:13:19,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:13:19,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:13:19,078 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:13:19,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-20 03:13:19,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 03:13:19,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:13:19,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 246 conjunts are in the unsatisfiable core [2022-02-20 03:13:19,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:13:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 69981 backedges. 50440 proven. 19541 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:13:30,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:13:36,638 INFO L134 CoverageAnalysis]: Checked inductivity of 69981 backedges. 38326 proven. 31655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:13:36,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308884713] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:13:36,638 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:13:36,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [247, 247, 247] total 433 [2022-02-20 03:13:36,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109101295] [2022-02-20 03:13:36,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:13:36,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 433 states [2022-02-20 03:13:36,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:13:36,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 433 interpolants. [2022-02-20 03:13:36,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36554, Invalid=150502, Unknown=0, NotChecked=0, Total=187056 [2022-02-20 03:13:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:13:36,722 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:13:36,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 433 states, 433 states have (on average 4.316397228637413) internal successors, (1869), 433 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:13:36,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:14:16,549 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2843 transitions and produced 2642 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:14:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:14:16,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-02-20 03:14:16,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:14:16,763 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:14:16,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:14:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash 368721885, now seen corresponding path program 15 times [2022-02-20 03:14:16,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:14:16,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045210518] [2022-02-20 03:14:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:14:16,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:14:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:15:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 76897 backedges. 0 proven. 76891 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:15:26,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:15:26,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045210518] [2022-02-20 03:15:26,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045210518] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:15:26,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978153958] [2022-02-20 03:15:26,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 03:15:26,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:15:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:15:26,590 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:15:26,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-20 03:15:27,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 132 check-sat command(s) [2022-02-20 03:15:27,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:15:27,395 WARN L261 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 1313 conjunts are in the unsatisfiable core [2022-02-20 03:15:27,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:15:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 76897 backedges. 0 proven. 76891 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:15:31,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:15:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 76897 backedges. 0 proven. 76891 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:15:34,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978153958] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:15:34,892 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:15:34,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [521, 521, 521] total 521 [2022-02-20 03:15:34,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322773504] [2022-02-20 03:15:34,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:15:34,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 523 states [2022-02-20 03:15:34,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:15:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 523 interpolants. [2022-02-20 03:15:34,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1043, Invalid=271963, Unknown=0, NotChecked=0, Total=273006 [2022-02-20 03:15:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:15:34,902 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:15:34,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 523 states, 522 states have (on average 2.2701149425287355) internal successors, (1185), 522 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:15:34,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:16:43,396 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2888 transitions and produced 2788 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:16:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:16:43,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 523 states. [2022-02-20 03:16:43,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-20 03:16:43,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-20 03:16:43,606 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:16:43,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:16:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 373586947, now seen corresponding path program 16 times [2022-02-20 03:16:43,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:16:43,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920428094] [2022-02-20 03:16:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:16:43,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:16:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:17:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 92876 backedges. 52139 proven. 40737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:17:00,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:17:00,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920428094] [2022-02-20 03:17:00,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920428094] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:17:00,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643758722] [2022-02-20 03:17:00,167 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 03:17:00,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:17:00,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:17:00,168 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:17:00,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-20 03:17:00,497 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 03:17:00,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:17:00,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 2330 conjuncts, 284 conjunts are in the unsatisfiable core [2022-02-20 03:17:00,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:17:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 92876 backedges. 66305 proven. 26571 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:17:13,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:17:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 92876 backedges. 52139 proven. 40737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:17:19,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643758722] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:17:19,662 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:17:19,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [285, 285, 285] total 490 [2022-02-20 03:17:19,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381684962] [2022-02-20 03:17:19,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:17:19,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 490 states [2022-02-20 03:17:19,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:17:19,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 490 interpolants. [2022-02-20 03:17:19,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47346, Invalid=192264, Unknown=0, NotChecked=0, Total=239610 [2022-02-20 03:17:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:17:19,686 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:17:19,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 490 states, 490 states have (on average 4.279591836734694) internal successors, (2097), 490 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:17:19,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:17:19,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 523 states. [2022-02-20 03:17:19,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:18:16,885 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3223 transitions and produced 3004 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:18:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:18:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:18:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:18:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:18:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 523 states. [2022-02-20 03:18:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 412 states. [2022-02-20 03:18:16,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-20 03:18:17,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-20 03:18:17,106 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 03:18:17,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:18:17,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1563401783, now seen corresponding path program 17 times [2022-02-20 03:18:17,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:18:17,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703455562] [2022-02-20 03:18:17,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:18:17,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:18:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:19:44,409 INFO L134 CoverageAnalysis]: Checked inductivity of 100875 backedges. 0 proven. 100869 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:19:44,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:19:44,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703455562] [2022-02-20 03:19:44,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703455562] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:19:44,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582774196] [2022-02-20 03:19:44,409 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 03:19:44,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:19:44,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:19:44,411 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 03:19:44,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-20 03:19:45,303 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 151 check-sat command(s) [2022-02-20 03:19:45,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:19:45,424 WARN L261 TraceCheckSpWp]: Trace formula consists of 2425 conjuncts, 1503 conjunts are in the unsatisfiable core [2022-02-20 03:19:45,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:19:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 100875 backedges. 0 proven. 100869 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:19:49,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:19:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 100875 backedges. 0 proven. 100869 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 03:19:54,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582774196] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:19:54,756 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:19:54,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [597, 597, 597] total 597 [2022-02-20 03:19:54,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692522359] [2022-02-20 03:19:54,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:19:54,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 599 states [2022-02-20 03:19:54,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:19:54,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 599 interpolants. [2022-02-20 03:19:54,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1195, Invalid=357007, Unknown=0, NotChecked=0, Total=358202 [2022-02-20 03:19:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:19:54,776 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:19:54,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 599 states, 598 states have (on average 2.2675585284280935) internal successors, (1356), 598 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:19:54,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-20 03:19:54,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-20 03:19:54,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:19:54,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 260 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 295 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 336 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 447 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 374 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 523 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 412 states. [2022-02-20 03:19:54,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-20 03:20:20,039 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 03:20:20,039 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 03:20:20,039 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 03:20:20,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-20 03:20:20,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-20 03:20:20,285 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-20 03:20:20,287 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-20 03:20:20,288 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-20 03:20:20,288 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-20 03:20:20,298 INFO L732 BasicCegarLoop]: Path program histogram: [17] [2022-02-20 03:20:20,300 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 03:20:20,300 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 03:20:20,301 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 03:20:20 BasicIcfg [2022-02-20 03:20:20,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 03:20:20,302 INFO L158 Benchmark]: Toolchain (without parser) took 854331.74ms. Allocated memory was 164.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 128.9MB in the beginning and 754.8MB in the end (delta: -625.9MB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-02-20 03:20:20,302 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 164.6MB. Free memory was 129.9MB in the beginning and 129.8MB in the end (delta: 67.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:20:20,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.54ms. Allocated memory is still 164.6MB. Free memory was 128.8MB in the beginning and 127.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:20:20,302 INFO L158 Benchmark]: Boogie Preprocessor took 17.55ms. Allocated memory is still 164.6MB. Free memory was 127.2MB in the beginning and 126.3MB in the end (delta: 942.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:20:20,303 INFO L158 Benchmark]: RCFGBuilder took 228.08ms. Allocated memory is still 164.6MB. Free memory was 126.2MB in the beginning and 117.6MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 03:20:20,303 INFO L158 Benchmark]: TraceAbstraction took 854053.44ms. Allocated memory was 164.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 117.0MB in the beginning and 754.8MB in the end (delta: -637.7MB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-02-20 03:20:20,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 164.6MB. Free memory was 129.9MB in the beginning and 129.8MB in the end (delta: 67.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.54ms. Allocated memory is still 164.6MB. Free memory was 128.8MB in the beginning and 127.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.55ms. Allocated memory is still 164.6MB. Free memory was 127.2MB in the beginning and 126.3MB in the end (delta: 942.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 228.08ms. Allocated memory is still 164.6MB. Free memory was 126.2MB in the beginning and 117.6MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 854053.44ms. Allocated memory was 164.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 117.0MB in the beginning and 754.8MB in the end (delta: -637.7MB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 47]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 853.9s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 364.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4320, 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: 0.7s SsaConstructionTime, 14.9s SatisfiabilityAnalysisTime, 468.7s InterpolantComputationTime, 24522 NumberOfCodeBlocks, 24522 NumberOfCodeBlocksAsserted, 723 NumberOfCheckSat, 36732 ConstructedInterpolants, 0 QuantifiedInterpolants, 205834 SizeOfPredicates, 40 NumberOfNonLiveVariables, 21897 ConjunctsInSsa, 7891 ConjunctsInUnsatCore, 51 InterpolantComputations, 0 PerfectInterpolantSequences, 521016/1830471 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