/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-NoForkJoinOpt-wrwc.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-4b0ab11 [2022-03-01 22:50:55,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 22:50:55,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 22:50:55,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 22:50:55,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 22:50:55,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 22:50:55,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 22:50:55,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 22:50:55,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 22:50:55,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 22:50:55,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 22:50:55,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 22:50:55,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 22:50:55,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 22:50:55,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 22:50:55,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 22:50:55,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 22:50:55,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 22:50:55,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 22:50:55,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 22:50:55,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 22:50:55,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 22:50:55,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 22:50:55,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 22:50:55,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 22:50:55,265 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-NoForkJoinOpt-wrwc.epf [2022-03-01 22:50:55,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 22:50:55,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 22:50:55,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 22:50:55,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 22:50:55,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 22:50:55,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 22:50:55,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 22:50:55,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 22:50:55,302 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 22:50:55,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 22:50:55,303 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 22:50:55,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 22:50:55,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 22:50:55,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 22:50:55,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 22:50:55,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 22:50:55,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 22:50:55,304 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 22:50:55,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 22:50:55,305 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 22:50:55,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 22:50:55,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 22:50:55,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 22:50:55,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 22:50:55,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 22:50:55,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:50:55,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 22:50:55,307 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 22:50:55,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 22:50:55,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 22:50:55,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 22:50:55,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 22:50:55,308 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 22:50:55,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 22:50:55,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 22:50:55,308 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 22:50:55,308 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 22:50:55,308 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 22:50:55,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 22:50:55,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 22:50:55,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 22:50:55,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 22:50:55,565 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 22:50:55,570 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 22:50:55,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-03-01 22:50:55,572 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-03-01 22:50:55,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 22:50:55,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 22:50:55,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 22:50:55,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 22:50:55,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 22:50:55,613 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 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,624 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 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,632 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 22:50:55,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 22:50:55,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 22:50:55,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 22:50:55,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 22:50:55,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 22:50:55,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 22:50:55,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 22:50:55,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 22:50:55,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/1) ... [2022-03-01 22:50:55,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:50:55,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:50:55,684 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) [2022-03-01 22:50:55,692 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 [2022-03-01 22:50:55,718 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-01 22:50:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 22:50:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 22:50:55,718 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-01 22:50:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 22:50:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 22:50:55,719 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 22:50:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 22:50:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 22:50:55,719 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 22:50:55,757 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 22:50:55,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 22:50:55,843 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 22:50:55,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 22:50:55,850 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 22:50:55,851 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:50:55 BoogieIcfgContainer [2022-03-01 22:50:55,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 22:50:55,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 22:50:55,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 22:50:55,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 22:50:55,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:50:55" (1/2) ... [2022-03-01 22:50:55,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff5be52 and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 10:50:55, skipping insertion in model container [2022-03-01 22:50:55,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:50:55" (2/2) ... [2022-03-01 22:50:55,867 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-03-01 22:50:55,880 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 22:50:55,881 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 22:50:55,881 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 22:50:55,881 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 22:50:55,913 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,914 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,914 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,914 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,915 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,915 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,917 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,917 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,917 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,917 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,918 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,918 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,918 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,919 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,919 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,919 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,920 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,920 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,920 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,921 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,924 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,927 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:50:55,929 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-01 22:50:55,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 22:50:55,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:50:55,972 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) [2022-03-01 22:50:55,973 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 [2022-03-01 22:50:56,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 22:50:56,019 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=false, mMcrOverapproximateWrwc=false [2022-03-01 22:50:56,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-01 22:50:56,584 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 680 transitions and produced 556 states. [2022-03-01 22:50:56,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:50:56,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:50:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash -482847489, now seen corresponding path program 1 times [2022-03-01 22:50:56,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:50:56,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122160795] [2022-03-01 22:50:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:50:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:50:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:50:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1666 proven. 1325 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-01 22:50:58,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:50:58,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122160795] [2022-03-01 22:50:58,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122160795] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:50:58,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253902773] [2022-03-01 22:50:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:50:58,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:50:58,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:50:58,081 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) [2022-03-01 22:50:58,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 22:50:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:50:58,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-01 22:50:58,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:51:00,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1328 proven. 1740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:00,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:51:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1666 proven. 1325 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-01 22:51:01,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253902773] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:51:01,925 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:51:01,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 48, 33] total 102 [2022-03-01 22:51:01,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815450863] [2022-03-01 22:51:01,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:51:01,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-03-01 22:51:01,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:01,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-03-01 22:51:01,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2520, Invalid=7782, Unknown=0, NotChecked=0, Total=10302 [2022-03-01 22:51:01,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:01,966 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:01,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.431372549019608) internal successors, (554), 102 states have internal predecessors, (554), 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) [2022-03-01 22:51:01,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:06,941 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 916 transitions and produced 798 states. [2022-03-01 22:51:06,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:06,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:07,159 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 [2022-03-01 22:51:07,160 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:51:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:07,161 INFO L85 PathProgramCache]: Analyzing trace with hash -234927907, now seen corresponding path program 2 times [2022-03-01 22:51:07,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:07,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349159198] [2022-03-01 22:51:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:07,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2544 proven. 2902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:09,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:09,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349159198] [2022-03-01 22:51:09,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349159198] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:51:09,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841921974] [2022-03-01 22:51:09,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 22:51:09,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:09,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:09,120 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) [2022-03-01 22:51:09,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 22:51:09,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 22:51:09,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:51:09,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 66 conjunts are in the unsatisfiable core [2022-03-01 22:51:09,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:51:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2399 proven. 2882 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-01 22:51:12,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:51:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2399 proven. 2882 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-01 22:51:13,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841921974] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:51:13,508 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:51:13,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 67, 67] total 135 [2022-03-01 22:51:13,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424106688] [2022-03-01 22:51:13,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:51:13,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2022-03-01 22:51:13,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2022-03-01 22:51:13,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3175, Invalid=14915, Unknown=0, NotChecked=0, Total=18090 [2022-03-01 22:51:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:13,518 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:13,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 135 states have (on average 4.214814814814815) internal successors, (569), 135 states have internal predecessors, (569), 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) [2022-03-01 22:51:13,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:13,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:13,896 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 737 transitions and produced 717 states. [2022-03-01 22:51:13,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:51:13,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:14,099 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 [2022-03-01 22:51:14,100 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:51:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:14,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1358903039, now seen corresponding path program 3 times [2022-03-01 22:51:14,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:14,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72032330] [2022-03-01 22:51:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:14,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:16,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:16,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72032330] [2022-03-01 22:51:16,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72032330] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:51:16,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721942486] [2022-03-01 22:51:16,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 22:51:16,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:16,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:16,093 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) [2022-03-01 22:51:16,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 22:51:16,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2022-03-01 22:51:16,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:51:16,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-01 22:51:16,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:51:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:20,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:51:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:21,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721942486] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:51:21,893 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:51:21,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78, 78] total 172 [2022-03-01 22:51:21,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653679671] [2022-03-01 22:51:21,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:51:21,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-03-01 22:51:21,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:21,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-03-01 22:51:21,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5436, Invalid=23976, Unknown=0, NotChecked=0, Total=29412 [2022-03-01 22:51:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:21,907 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:21,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 172 states have (on average 4.284883720930233) internal successors, (737), 172 states have internal predecessors, (737), 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) [2022-03-01 22:51:21,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:21,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:51:21,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:22,387 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 854 transitions and produced 834 states. [2022-03-01 22:51:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:51:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:51:22,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:22,588 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 [2022-03-01 22:51:22,589 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:51:22,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:22,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1581565115, now seen corresponding path program 4 times [2022-03-01 22:51:22,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:22,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764768792] [2022-03-01 22:51:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:22,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:24,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:24,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764768792] [2022-03-01 22:51:24,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764768792] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:51:24,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587039853] [2022-03-01 22:51:24,821 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 22:51:24,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:24,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:24,824 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) [2022-03-01 22:51:24,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 22:51:24,967 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 22:51:24,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:51:24,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 86 conjunts are in the unsatisfiable core [2022-03-01 22:51:24,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:51:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:29,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:51:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:29,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587039853] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:51:29,828 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:51:29,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87, 87] total 155 [2022-03-01 22:51:29,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66478757] [2022-03-01 22:51:29,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:51:29,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-03-01 22:51:29,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:29,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-03-01 22:51:29,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4070, Invalid=19800, Unknown=0, NotChecked=0, Total=23870 [2022-03-01 22:51:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:29,835 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:29,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 4.2387096774193544) internal successors, (657), 155 states have internal predecessors, (657), 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) [2022-03-01 22:51:29,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:29,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:51:29,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:51:29,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:30,440 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 867 transitions and produced 847 states. [2022-03-01 22:51:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:51:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:51:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:51:30,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:30,667 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 [2022-03-01 22:51:30,668 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:51:30,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:30,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2012787351, now seen corresponding path program 5 times [2022-03-01 22:51:30,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:30,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596914516] [2022-03-01 22:51:30,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:30,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:51:40,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:40,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596914516] [2022-03-01 22:51:40,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596914516] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:51:40,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512480846] [2022-03-01 22:51:40,695 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 22:51:40,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:40,698 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) [2022-03-01 22:51:40,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 22:51:40,835 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2022-03-01 22:51:40,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:51:40,850 WARN L261 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 423 conjunts are in the unsatisfiable core [2022-03-01 22:51:40,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:51:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:51:42,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:51:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:51:43,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512480846] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:51:43,669 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:51:43,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [165, 165, 165] total 165 [2022-03-01 22:51:43,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146185130] [2022-03-01 22:51:43,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:51:43,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2022-03-01 22:51:43,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:43,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2022-03-01 22:51:43,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=27391, Unknown=0, NotChecked=0, Total=27722 [2022-03-01 22:51:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:43,674 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:43,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 166 states have (on average 2.3132530120481927) internal successors, (384), 166 states have internal predecessors, (384), 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) [2022-03-01 22:51:43,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:43,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:51:43,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:51:43,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:51:43,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:52,682 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1190 transitions and produced 1170 states. [2022-03-01 22:51:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:51:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:51:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:51:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:51:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:51:52,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:52,884 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 [2022-03-01 22:51:52,884 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:51:52,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:52,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1105778395, now seen corresponding path program 6 times [2022-03-01 22:51:52,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:52,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353634205] [2022-03-01 22:51:52,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:52,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 6864 proven. 9094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:56,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:56,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353634205] [2022-03-01 22:51:56,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353634205] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:51:56,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936510907] [2022-03-01 22:51:56,212 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 22:51:56,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:56,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:56,220 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) [2022-03-01 22:51:56,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 22:51:56,443 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 68 check-sat command(s) [2022-03-01 22:51:56,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:51:56,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 112 conjunts are in the unsatisfiable core [2022-03-01 22:51:56,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:52:01,540 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 12936 proven. 3022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:52:01,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:52:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 6864 proven. 9094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:52:05,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936510907] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:52:05,921 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:52:05,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113, 113] total 253 [2022-03-01 22:52:05,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814763163] [2022-03-01 22:52:05,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:52:05,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 253 states [2022-03-01 22:52:05,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:52:05,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 253 interpolants. [2022-03-01 22:52:05,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11882, Invalid=51874, Unknown=0, NotChecked=0, Total=63756 [2022-03-01 22:52:05,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:52:05,931 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:52:05,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 253 states, 253 states have (on average 4.707509881422925) internal successors, (1191), 253 states have internal predecessors, (1191), 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) [2022-03-01 22:52:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:52:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:52:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:52:05,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:52:05,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:52:05,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:52:19,952 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1623 transitions and produced 1448 states. [2022-03-01 22:52:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:52:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:52:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:52:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:52:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:52:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:52:19,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-01 22:52:20,153 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 [2022-03-01 22:52:20,153 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:52:20,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:52:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash -995187699, now seen corresponding path program 7 times [2022-03-01 22:52:20,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:52:20,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92401039] [2022-03-01 22:52:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:52:20,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:52:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:52:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:52:44,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:52:44,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92401039] [2022-03-01 22:52:44,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92401039] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:52:44,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757943601] [2022-03-01 22:52:44,801 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-01 22:52:44,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:52:44,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:52:44,808 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) [2022-03-01 22:52:44,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-01 22:52:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:52:44,990 WARN L261 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 673 conjunts are in the unsatisfiable core [2022-03-01 22:52:45,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:52:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:52:46,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:52:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:52:48,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757943601] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:52:48,920 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:52:48,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [265, 265, 265] total 265 [2022-03-01 22:52:48,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823193853] [2022-03-01 22:52:48,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:52:48,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 267 states [2022-03-01 22:52:48,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:52:48,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 267 interpolants. [2022-03-01 22:52:48,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=70491, Unknown=0, NotChecked=0, Total=71022 [2022-03-01 22:52:48,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:52:48,927 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:52:48,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 267 states, 266 states have (on average 2.289473684210526) internal successors, (609), 266 states have internal predecessors, (609), 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) [2022-03-01 22:52:48,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:52:48,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:52:48,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:52:48,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:52:48,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:52:48,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:52:48,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:53:10,517 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1686 transitions and produced 1642 states. [2022-03-01 22:53:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:53:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:53:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:53:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:53:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:53:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:53:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:53:10,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-01 22:53:10,718 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 [2022-03-01 22:53:10,718 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:53:10,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:53:10,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1281209765, now seen corresponding path program 8 times [2022-03-01 22:53:10,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:53:10,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413655265] [2022-03-01 22:53:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:53:10,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:53:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:53:17,450 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 14989 proven. 16919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:53:17,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:53:17,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413655265] [2022-03-01 22:53:17,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413655265] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:53:17,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781668974] [2022-03-01 22:53:17,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 22:53:17,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:53:17,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:53:17,454 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) [2022-03-01 22:53:17,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-01 22:53:17,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 22:53:17,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:53:17,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 162 conjunts are in the unsatisfiable core [2022-03-01 22:53:17,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:53:26,134 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 24661 proven. 7247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:53:26,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:53:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 14989 proven. 16919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:53:32,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781668974] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:53:32,144 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:53:32,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [163, 163, 163] total 328 [2022-03-01 22:53:32,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564307936] [2022-03-01 22:53:32,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:53:32,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 328 states [2022-03-01 22:53:32,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:53:32,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 328 interpolants. [2022-03-01 22:53:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19982, Invalid=87274, Unknown=0, NotChecked=0, Total=107256 [2022-03-01 22:53:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:53:32,164 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:53:32,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 328 states, 328 states have (on average 4.545731707317073) internal successors, (1491), 328 states have internal predecessors, (1491), 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) [2022-03-01 22:53:32,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:53:32,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:53:32,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:53:32,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:53:32,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:53:32,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:53:32,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:53:32,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:53:54,883 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2123 transitions and produced 1924 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:53:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:53:54,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-01 22:53:55,085 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 [2022-03-01 22:53:55,086 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:53:55,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:53:55,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1649614961, now seen corresponding path program 9 times [2022-03-01 22:53:55,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:53:55,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576924846] [2022-03-01 22:53:55,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:53:55,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:53:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:54:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:54:40,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:54:40,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576924846] [2022-03-01 22:54:40,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576924846] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:54:40,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851193920] [2022-03-01 22:54:40,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 22:54:40,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:54:40,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:54:40,290 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) [2022-03-01 22:54:40,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-01 22:54:40,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 93 check-sat command(s) [2022-03-01 22:54:40,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:54:40,790 WARN L261 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 923 conjunts are in the unsatisfiable core [2022-03-01 22:54:40,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:54:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:54:43,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:54:46,398 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:54:46,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851193920] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:54:46,398 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:54:46,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [365, 365, 365] total 365 [2022-03-01 22:54:46,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529764875] [2022-03-01 22:54:46,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:54:46,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 367 states [2022-03-01 22:54:46,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:54:46,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 367 interpolants. [2022-03-01 22:54:46,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=133591, Unknown=0, NotChecked=0, Total=134322 [2022-03-01 22:54:46,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:54:46,405 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:54:46,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 367 states, 366 states have (on average 2.278688524590164) internal successors, (834), 366 states have internal predecessors, (834), 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) [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:54:46,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:55:26,626 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2186 transitions and produced 2118 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:55:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:55:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-01 22:55:26,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-01 22:55:26,827 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 [2022-03-01 22:55:26,827 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:55:26,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:55:26,828 INFO L85 PathProgramCache]: Analyzing trace with hash 589845091, now seen corresponding path program 10 times [2022-03-01 22:55:26,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:55:26,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159647418] [2022-03-01 22:55:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:55:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:55:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:55:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 26864 proven. 26619 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:55:38,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:55:38,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159647418] [2022-03-01 22:55:38,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159647418] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:55:38,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385171911] [2022-03-01 22:55:38,142 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 22:55:38,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:55:38,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:55:38,143 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) [2022-03-01 22:55:38,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-01 22:55:38,406 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 22:55:38,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:55:38,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 212 conjunts are in the unsatisfiable core [2022-03-01 22:55:38,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:55:50,746 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 40136 proven. 13347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:55:50,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:55:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 26864 proven. 26619 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:55:58,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385171911] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:55:58,151 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:55:58,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 213, 213] total 403 [2022-03-01 22:55:58,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937704391] [2022-03-01 22:55:58,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:55:58,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 403 states [2022-03-01 22:55:58,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:55:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 403 interpolants. [2022-03-01 22:55:58,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30582, Invalid=131424, Unknown=0, NotChecked=0, Total=162006 [2022-03-01 22:55:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:55:58,173 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:55:58,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 403 states, 403 states have (on average 4.444168734491315) internal successors, (1791), 403 states have internal predecessors, (1791), 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) [2022-03-01 22:55:58,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-01 22:55:58,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:56:38,092 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2623 transitions and produced 2400 states. [2022-03-01 22:56:38,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:56:38,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:56:38,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:56:38,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:56:38,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:56:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:56:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:56:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:56:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-01 22:56:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-01 22:56:38,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-01 22:56:38,315 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 [2022-03-01 22:56:38,315 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:56:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:56:38,316 INFO L85 PathProgramCache]: Analyzing trace with hash 992963845, now seen corresponding path program 11 times [2022-03-01 22:56:38,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:56:38,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927746884] [2022-03-01 22:56:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:56:38,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:56:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:57:57,290 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:57:57,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:57:57,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927746884] [2022-03-01 22:57:57,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927746884] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:57:57,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110916314] [2022-03-01 22:57:57,290 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 22:57:57,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:57:57,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:57:57,292 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) [2022-03-01 22:57:57,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-01 22:57:57,816 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 118 check-sat command(s) [2022-03-01 22:57:57,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:57:57,894 WARN L261 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 1173 conjunts are in the unsatisfiable core [2022-03-01 22:57:57,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:58:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:58:01,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:58:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-01 22:58:05,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110916314] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:58:05,147 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:58:05,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [465, 465, 465] total 465 [2022-03-01 22:58:05,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115434599] [2022-03-01 22:58:05,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:58:05,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 467 states [2022-03-01 22:58:05,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:58:05,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 467 interpolants. [2022-03-01 22:58:05,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=931, Invalid=216691, Unknown=0, NotChecked=0, Total=217622 [2022-03-01 22:58:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:58:05,157 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:58:05,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 467 states, 466 states have (on average 2.272532188841202) internal successors, (1059), 466 states have internal predecessors, (1059), 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) [2022-03-01 22:58:05,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:58:05,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:58:05,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-01 22:58:05,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:59:10,199 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2686 transitions and produced 2594 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-01 22:59:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-03-01 22:59:10,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-01 22:59:10,401 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 [2022-03-01 22:59:10,401 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 22:59:10,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:59:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1274389805, now seen corresponding path program 12 times [2022-03-01 22:59:10,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:59:10,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935044703] [2022-03-01 22:59:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:59:10,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:59:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:59:27,821 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 42489 proven. 38194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:59:27,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:59:27,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935044703] [2022-03-01 22:59:27,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935044703] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:59:27,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378818380] [2022-03-01 22:59:27,822 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 22:59:27,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:59:27,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:59:27,823 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) [2022-03-01 22:59:27,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-01 22:59:28,467 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 143 check-sat command(s) [2022-03-01 22:59:28,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 22:59:28,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 262 conjunts are in the unsatisfiable core [2022-03-01 22:59:28,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:59:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 59361 proven. 21322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:59:45,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:59:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 42489 proven. 38194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:59:55,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378818380] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:59:55,067 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:59:55,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [263, 263, 263] total 478 [2022-03-01 22:59:55,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692115531] [2022-03-01 22:59:55,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:59:55,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 478 states [2022-03-01 22:59:55,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:59:55,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 478 interpolants. [2022-03-01 22:59:55,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43682, Invalid=184324, Unknown=0, NotChecked=0, Total=228006 [2022-03-01 22:59:55,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:59:55,087 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:59:55,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 478 states, 478 states have (on average 4.374476987447698) internal successors, (2091), 478 states have internal predecessors, (2091), 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) [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-03-01 22:59:55,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:00:51,100 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3123 transitions and produced 2876 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-01 23:00:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-01 23:00:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-01 23:00:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-03-01 23:00:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 432 states. [2022-03-01 23:00:51,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-01 23:00:51,301 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 [2022-03-01 23:00:51,302 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 23:00:51,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:00:51,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1424644985, now seen corresponding path program 13 times [2022-03-01 23:00:51,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:00:51,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695107828] [2022-03-01 23:00:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:00:51,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:00:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-01 23:02:19,841 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-01 23:02:19,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 23:02:19,842 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1291 with TraceHistMax 142,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. [2022-03-01 23:02:19,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-01 23:02:19,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-01 23:02:19,855 INFO L732 BasicCegarLoop]: Path program histogram: [13] [2022-03-01 23:02:19,859 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 23:02:19,859 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 23:02:19,861 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 11:02:19 BasicIcfg [2022-03-01 23:02:19,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 23:02:19,861 INFO L158 Benchmark]: Toolchain (without parser) took 684266.48ms. Allocated memory was 208.7MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 166.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-03-01 23:02:19,862 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.38ms. Allocated memory is still 208.7MB. Free memory was 167.9MB in the beginning and 167.9MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 23:02:19,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.45ms. Allocated memory is still 208.7MB. Free memory was 166.8MB in the beginning and 165.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 23:02:19,862 INFO L158 Benchmark]: Boogie Preprocessor took 15.88ms. Allocated memory is still 208.7MB. Free memory was 165.2MB in the beginning and 164.3MB in the end (delta: 925.7kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 23:02:19,862 INFO L158 Benchmark]: RCFGBuilder took 199.21ms. Allocated memory is still 208.7MB. Free memory was 164.3MB in the beginning and 181.4MB in the end (delta: -17.1MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. [2022-03-01 23:02:19,863 INFO L158 Benchmark]: TraceAbstraction took 684007.15ms. Allocated memory was 208.7MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 180.9MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-03-01 23:02:19,864 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 0.38ms. Allocated memory is still 208.7MB. Free memory was 167.9MB in the beginning and 167.9MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.45ms. Allocated memory is still 208.7MB. Free memory was 166.8MB in the beginning and 165.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 15.88ms. Allocated memory is still 208.7MB. Free memory was 165.2MB in the beginning and 164.3MB in the end (delta: 925.7kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 199.21ms. Allocated memory is still 208.7MB. Free memory was 164.3MB in the beginning and 181.4MB in the end (delta: -17.1MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. * TraceAbstraction took 684007.15ms. Allocated memory was 208.7MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 180.9MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.7GB. 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 PartialOrderCegarLoop was analyzing trace of length 1291 with TraceHistMax 142,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. - 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 PartialOrderCegarLoop was analyzing trace of length 1291 with TraceHistMax 142,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. - 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 PartialOrderCegarLoop was analyzing trace of length 1291 with TraceHistMax 142,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 516 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 683.9s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 275.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2929, 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: 0.6s SsaConstructionTime, 9.2s SatisfiabilityAnalysisTime, 306.7s InterpolantComputationTime, 15390 NumberOfCodeBlocks, 15390 NumberOfCodeBlocksAsserted, 527 NumberOfCheckSat, 23049 ConstructedInterpolants, 0 QuantifiedInterpolants, 125039 SizeOfPredicates, 32 NumberOfNonLiveVariables, 13756 ConjunctsInSsa, 4216 ConjunctsInUnsatCore, 36 InterpolantComputations, 0 PerfectInterpolantSequences, 347328/992391 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