/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 01:52:18,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 01:52:18,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 01:52:18,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 01:52:18,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 01:52:18,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 01:52:18,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 01:52:18,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 01:52:18,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 01:52:18,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 01:52:18,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 01:52:18,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 01:52:18,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 01:52:18,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 01:52:18,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 01:52:18,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 01:52:18,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-10 01:52:18,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 01:52:18,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 01:52:18,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 01:52:18,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-10 01:52:18,504 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 01:52:18,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 01:52:18,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 01:52:18,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 01:52:18,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 01:52:18,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 01:52:18,507 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 01:52:18,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 01:52:18,507 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 01:52:18,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 01:52:18,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 01:52:18,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 01:52:18,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 01:52:18,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 01:52:18,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 01:52:18,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 01:52:18,510 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-10 01:52:18,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 01:52:18,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 01:52:18,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 01:52:18,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 01:52:18,788 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 01:52:18,789 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 01:52:18,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl [2021-07-10 01:52:18,789 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl' [2021-07-10 01:52:18,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 01:52:18,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 01:52:18,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 01:52:18,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 01:52:18,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 01:52:18,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 01:52:18,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 01:52:18,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 01:52:18,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 01:52:18,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... [2021-07-10 01:52:18,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 01:52:18,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 01:52:18,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 01:52:18,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 01:52:18,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 01:52:18,927 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 01:52:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 01:52:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 01:52:18,927 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 01:52:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 01:52:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 01:52:18,927 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 01:52:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 01:52:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 01:52:18,928 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 01:52:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 01:52:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 01:52:18,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-10 01:52:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-10 01:52:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-10 01:52:18,930 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 01:52:19,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 01:52:19,085 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 01:52:19,087 INFO L202 PluginConnector]: Adding new model min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:52:19 BoogieIcfgContainer [2021-07-10 01:52:19,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 01:52:19,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 01:52:19,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 01:52:19,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 01:52:19,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:52:18" (1/2) ... [2021-07-10 01:52:19,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1cf698 and model type min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 01:52:19, skipping insertion in model container [2021-07-10 01:52:19,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:52:19" (2/2) ... [2021-07-10 01:52:19,091 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc.wvr.bpl [2021-07-10 01:52:19,094 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 01:52:19,094 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 01:52:19,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 01:52:19,095 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 01:52:19,125 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-10 01:52:19,139 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 01:52:19,169 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 01:52:19,170 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 01:52:19,170 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 01:52:19,170 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 01:52:19,170 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 01:52:19,170 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 01:52:19,170 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 01:52:19,170 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 01:52:19,272 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:19,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:19,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1438409888, now seen corresponding path program 1 times [2021-07-10 01:52:19,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:19,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742807748] [2021-07-10 01:52:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:52:19,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:19,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742807748] [2021-07-10 01:52:19,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742807748] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:19,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983088971] [2021-07-10 01:52:19,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:19,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-10 01:52:19,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:19,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2021-07-10 01:52:19,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:19,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:19,722 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 01:52:19,723 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2021-07-10 01:52:19,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-10 01:52:19,798 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:19,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:19,800 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 01:52:19,800 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-07-10 01:52:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:52:19,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983088971] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:19,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:19,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-10 01:52:19,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834659509] [2021-07-10 01:52:19,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-10 01:52:19,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:19,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-10 01:52:19,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-07-10 01:52:19,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:19,868 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:19,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:19,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:20,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-10 01:52:20,229 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:20,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:20,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1245597502, now seen corresponding path program 2 times [2021-07-10 01:52:20,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:20,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896778589] [2021-07-10 01:52:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:52:20,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:20,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896778589] [2021-07-10 01:52:20,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896778589] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:20,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032034798] [2021-07-10 01:52:20,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:20,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 01:52:20,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:20,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-10 01:52:20,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:52:20,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032034798] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:20,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:20,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-10 01:52:20,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747855185] [2021-07-10 01:52:20,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 01:52:20,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:20,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 01:52:20,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-10 01:52:20,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:20,480 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:20,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:20,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:20,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:20,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:20,800 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:20,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:20,801 INFO L82 PathProgramCache]: Analyzing trace with hash -2050303934, now seen corresponding path program 3 times [2021-07-10 01:52:20,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:20,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734117664] [2021-07-10 01:52:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-10 01:52:20,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:20,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734117664] [2021-07-10 01:52:20,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734117664] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:20,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737157297] [2021-07-10 01:52:20,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:20,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 01:52:20,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:20,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-10 01:52:20,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-10 01:52:20,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737157297] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:20,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:20,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-10 01:52:20,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516733038] [2021-07-10 01:52:20,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 01:52:20,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:20,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 01:52:20,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-10 01:52:20,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:20,954 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:20,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:20,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:20,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:20,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:21,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:21,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:21,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:21,260 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:21,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1238599746, now seen corresponding path program 4 times [2021-07-10 01:52:21,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:21,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890294461] [2021-07-10 01:52:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-10 01:52:21,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:21,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890294461] [2021-07-10 01:52:21,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890294461] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:21,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398527384] [2021-07-10 01:52:21,305 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:21,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 01:52:21,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:21,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 01:52:21,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:21,398 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-10 01:52:21,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398527384] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:21,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:21,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-10 01:52:21,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020797900] [2021-07-10 01:52:21,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-10 01:52:21,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:21,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-10 01:52:21,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-10 01:52:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:21,400 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:21,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:21,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:21,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:21,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:21,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:21,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:21,710 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:21,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:21,724 INFO L82 PathProgramCache]: Analyzing trace with hash 929828278, now seen corresponding path program 5 times [2021-07-10 01:52:21,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:21,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384919338] [2021-07-10 01:52:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 01:52:21,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:21,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384919338] [2021-07-10 01:52:21,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384919338] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:21,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617846539] [2021-07-10 01:52:21,837 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:21,917 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-10 01:52:21,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:21,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-10 01:52:21,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:22,023 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 01:52:22,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617846539] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:22,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:22,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-07-10 01:52:22,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114430856] [2021-07-10 01:52:22,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-10 01:52:22,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:22,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-10 01:52:22,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-07-10 01:52:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:22,025 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:22,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 14 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:22,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:22,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:22,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:22,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:22,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:22,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:22,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:22,694 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:22,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:22,694 INFO L82 PathProgramCache]: Analyzing trace with hash -245408574, now seen corresponding path program 6 times [2021-07-10 01:52:22,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:22,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095822209] [2021-07-10 01:52:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:22,759 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 44 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 01:52:22,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:22,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095822209] [2021-07-10 01:52:22,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095822209] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:22,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562776216] [2021-07-10 01:52:22,760 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:22,803 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-10 01:52:22,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:22,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-10 01:52:22,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:22,931 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 45 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-10 01:52:22,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562776216] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:22,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:22,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2021-07-10 01:52:22,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26442776] [2021-07-10 01:52:22,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-10 01:52:22,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:22,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-10 01:52:22,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-07-10 01:52:22,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:22,932 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:22,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:22,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:22,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:22,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:22,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:22,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:22,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 01:52:23,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:23,620 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:23,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:23,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1181284662, now seen corresponding path program 7 times [2021-07-10 01:52:23,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:23,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4951524] [2021-07-10 01:52:23,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 34 proven. 41 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 01:52:23,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:23,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4951524] [2021-07-10 01:52:23,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4951524] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:23,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939758175] [2021-07-10 01:52:23,679 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:23,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-10 01:52:23,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 41 proven. 34 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 01:52:23,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939758175] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:23,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:23,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2021-07-10 01:52:23,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107093175] [2021-07-10 01:52:23,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-10 01:52:23,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:23,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-10 01:52:23,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-07-10 01:52:23,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:23,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:23,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:23,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:23,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:23,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:23,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:23,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:23,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 01:52:23,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:24,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-10 01:52:24,166 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:24,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2012610758, now seen corresponding path program 8 times [2021-07-10 01:52:24,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:24,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046887128] [2021-07-10 01:52:24,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 72 proven. 101 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 01:52:24,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:24,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046887128] [2021-07-10 01:52:24,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046887128] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:24,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001845982] [2021-07-10 01:52:24,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:24,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 01:52:24,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:24,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-10 01:52:24,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:24,622 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 110 proven. 25 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-07-10 01:52:24,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001845982] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:24,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:24,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 29 [2021-07-10 01:52:24,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316713155] [2021-07-10 01:52:24,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-10 01:52:24,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:24,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-10 01:52:24,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2021-07-10 01:52:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:24,625 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:24,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.6333333333333333) internal successors, (109), 29 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:24,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:24,988 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:24,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:24,988 INFO L82 PathProgramCache]: Analyzing trace with hash 196016924, now seen corresponding path program 9 times [2021-07-10 01:52:24,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:24,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090323807] [2021-07-10 01:52:24,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 39 proven. 102 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-07-10 01:52:25,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:25,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090323807] [2021-07-10 01:52:25,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090323807] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:25,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139872656] [2021-07-10 01:52:25,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:25,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-10 01:52:25,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:25,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 36 conjunts are in the unsatisfiable core [2021-07-10 01:52:25,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:25,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:25,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:25,341 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-10 01:52:25,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 60 [2021-07-10 01:52:25,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:25,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:25,405 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-10 01:52:25,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 60 [2021-07-10 01:52:25,419 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:25,560 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2021-07-10 01:52:25,561 INFO L628 ElimStorePlain]: treesize reduction 116, result has 48.7 percent of original size [2021-07-10 01:52:25,586 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-10 01:52:25,586 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:85 [2021-07-10 01:52:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:25,682 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-10 01:52:25,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 60 [2021-07-10 01:52:25,699 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:25,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:25,740 INFO L354 Elim1Store]: treesize reduction 32, result has 59.5 percent of original size [2021-07-10 01:52:25,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 60 [2021-07-10 01:52:25,751 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:25,838 INFO L628 ElimStorePlain]: treesize reduction 77, result has 62.3 percent of original size [2021-07-10 01:52:25,865 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-07-10 01:52:25,865 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:127 [2021-07-10 01:52:26,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,256 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:26,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 80 [2021-07-10 01:52:26,279 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:26,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,385 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:26,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-10 01:52:26,402 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:26,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,492 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:26,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 80 [2021-07-10 01:52:26,500 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:26,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:26,578 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:26,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-10 01:52:26,592 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:27,475 WARN L205 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 151 [2021-07-10 01:52:27,476 INFO L628 ElimStorePlain]: treesize reduction 318, result has 61.8 percent of original size [2021-07-10 01:52:27,554 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-10 01:52:27,555 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:187, output treesize:405 [2021-07-10 01:52:27,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,789 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:27,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-10 01:52:27,800 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:27,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,879 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:27,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 80 [2021-07-10 01:52:27,888 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:27,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,969 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:27,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 80 [2021-07-10 01:52:27,983 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:27,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:27,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,056 INFO L354 Elim1Store]: treesize reduction 44, result has 59.3 percent of original size [2021-07-10 01:52:28,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 80 [2021-07-10 01:52:28,073 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:28,533 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 148 [2021-07-10 01:52:28,533 INFO L628 ElimStorePlain]: treesize reduction 207, result has 71.1 percent of original size [2021-07-10 01:52:28,582 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-10 01:52:28,582 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:187, output treesize:377 [2021-07-10 01:52:28,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,784 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-10 01:52:28,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 94 [2021-07-10 01:52:28,797 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,880 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-10 01:52:28,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 94 [2021-07-10 01:52:28,898 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:28,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:28,990 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-10 01:52:28,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 94 [2021-07-10 01:52:28,999 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:29,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:29,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:29,081 INFO L354 Elim1Store]: treesize reduction 50, result has 60.3 percent of original size [2021-07-10 01:52:29,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 94 [2021-07-10 01:52:29,089 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:29,747 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 146 [2021-07-10 01:52:29,748 INFO L628 ElimStorePlain]: treesize reduction 240, result has 67.2 percent of original size [2021-07-10 01:52:29,791 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-07-10 01:52:29,792 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:183, output treesize:492 [2021-07-10 01:52:30,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:30,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:30,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:31,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 51 [2021-07-10 01:52:31,019 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-07-10 01:52:31,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,049 INFO L354 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2021-07-10 01:52:31,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2021-07-10 01:52:31,051 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,087 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:31,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 49 [2021-07-10 01:52:31,101 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-07-10 01:52:31,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,132 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:31,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 47 [2021-07-10 01:52:31,143 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:31,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,174 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:31,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 49 [2021-07-10 01:52:31,197 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2021-07-10 01:52:31,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,230 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:31,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 47 [2021-07-10 01:52:31,247 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:31,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,284 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:31,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 47 [2021-07-10 01:52:31,303 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,345 INFO L354 Elim1Store]: treesize reduction 23, result has 34.3 percent of original size [2021-07-10 01:52:31,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 26 [2021-07-10 01:52:31,346 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,371 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-10 01:52:31,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 1 [2021-07-10 01:52:31,372 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,404 INFO L354 Elim1Store]: treesize reduction 23, result has 34.3 percent of original size [2021-07-10 01:52:31,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 26 [2021-07-10 01:52:31,406 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,439 INFO L354 Elim1Store]: treesize reduction 25, result has 32.4 percent of original size [2021-07-10 01:52:31,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 26 [2021-07-10 01:52:31,441 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,475 INFO L354 Elim1Store]: treesize reduction 32, result has 8.6 percent of original size [2021-07-10 01:52:31,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 20 [2021-07-10 01:52:31,477 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,500 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-10 01:52:31,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 1 [2021-07-10 01:52:31,501 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,527 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-07-10 01:52:31,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 1 [2021-07-10 01:52:31,528 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,559 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 01:52:31,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 47 [2021-07-10 01:52:31,570 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-07-10 01:52:31,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 01:52:31,588 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-07-10 01:52:31,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 1 [2021-07-10 01:52:31,589 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-10 01:52:31,940 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2021-07-10 01:52:31,940 INFO L628 ElimStorePlain]: treesize reduction 100, result has 77.6 percent of original size [2021-07-10 01:52:31,979 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 33 xjuncts. [2021-07-10 01:52:31,979 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:739, output treesize:1133 [2021-07-10 01:52:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 23 proven. 105 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-07-10 01:52:32,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139872656] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:32,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:32,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 27 [2021-07-10 01:52:32,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47038653] [2021-07-10 01:52:32,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-10 01:52:32,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:32,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-10 01:52:32,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2021-07-10 01:52:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:32,328 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:32,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 27 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:32,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:32,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:32,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:32,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:32,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:32,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:32,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:32,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:32,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:33,421 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-07-10 01:52:36,407 WARN L205 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-07-10 01:52:38,989 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-07-10 01:52:39,380 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-07-10 01:52:39,924 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-10 01:52:40,241 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-07-10 01:52:40,465 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-10 01:52:40,795 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-07-10 01:52:41,118 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-07-10 01:52:41,627 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-07-10 01:52:41,865 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-07-10 01:52:42,260 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-07-10 01:52:42,587 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-07-10 01:52:43,104 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-07-10 01:52:43,382 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-07-10 01:52:43,737 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-07-10 01:52:44,371 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2021-07-10 01:52:44,823 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-07-10 01:52:45,138 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-07-10 01:52:45,779 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2021-07-10 01:52:46,578 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 192 [2021-07-10 01:52:47,258 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 178 [2021-07-10 01:52:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-10 01:52:47,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:47,560 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:47,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:47,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1295884316, now seen corresponding path program 10 times [2021-07-10 01:52:47,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:47,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100821879] [2021-07-10 01:52:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 54 proven. 119 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-07-10 01:52:47,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:47,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100821879] [2021-07-10 01:52:47,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100821879] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:47,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510062349] [2021-07-10 01:52:47,658 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:47,699 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 01:52:47,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:47,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 01:52:47,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 126 proven. 62 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-07-10 01:52:47,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510062349] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:47,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:47,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 23 [2021-07-10 01:52:47,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621117825] [2021-07-10 01:52:47,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-10 01:52:47,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:47,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-10 01:52:47,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-10 01:52:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:47,874 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:47,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.5) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-10 01:52:47,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:48,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:48,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:48,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-10 01:52:48,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 01:52:48,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable442 [2021-07-10 01:52:48,460 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:48,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:48,461 INFO L82 PathProgramCache]: Analyzing trace with hash -180704642, now seen corresponding path program 11 times [2021-07-10 01:52:48,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:48,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44976334] [2021-07-10 01:52:48,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 106 proven. 109 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-07-10 01:52:48,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:48,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44976334] [2021-07-10 01:52:48,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44976334] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:48,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318989379] [2021-07-10 01:52:48,566 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:48,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-10 01:52:48,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:48,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-10 01:52:48,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 70 proven. 98 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-07-10 01:52:48,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318989379] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:48,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:48,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2021-07-10 01:52:48,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252963318] [2021-07-10 01:52:48,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-10 01:52:48,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:48,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-10 01:52:48,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-10 01:52:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:48,844 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:48,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 23 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:48,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:48,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:48,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-10 01:52:48,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:49,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 01:52:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-10 01:52:49,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable443 [2021-07-10 01:52:49,802 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:49,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:49,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1608799460, now seen corresponding path program 12 times [2021-07-10 01:52:49,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:49,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248703830] [2021-07-10 01:52:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 82 proven. 159 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-07-10 01:52:49,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 01:52:49,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248703830] [2021-07-10 01:52:49,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248703830] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:49,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639723523] [2021-07-10 01:52:49,961 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 01:52:50,020 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-07-10 01:52:50,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 01:52:50,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-10 01:52:50,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 01:52:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 120 proven. 134 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-07-10 01:52:50,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639723523] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 01:52:50,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 01:52:50,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 31 [2021-07-10 01:52:50,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855126394] [2021-07-10 01:52:50,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-10 01:52:50,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 01:52:50,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-10 01:52:50,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2021-07-10 01:52:50,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:50,317 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 01:52:50,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 3.90625) internal successors, (125), 31 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-07-10 01:52:50,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-10 01:52:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-10 01:52:51,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-07-10 01:52:51,008 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 01:52:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 01:52:51,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1772172158, now seen corresponding path program 13 times [2021-07-10 01:52:51,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 01:52:51,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523705248] [2021-07-10 01:52:51,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 01:52:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 01:52:56,086 WARN L205 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 108 DAG size of output: 24 [2021-07-10 02:03:47,341 WARN L205 SmtUtils]: Spent 10.85 m on a formula simplification. DAG size of input: 139 DAG size of output: 12 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown