/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 21:36:06,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 21:36:06,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 21:36:06,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 21:36:06,623 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-Lockstep.epf [2021-06-13 21:36:06,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 21:36:06,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 21:36:06,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 21:36:06,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 21:36:06,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 21:36:06,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 21:36:06,677 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 21:36:06,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 21:36:06,677 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 21:36:06,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 21:36:06,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 21:36:06,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 21:36:06,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 21:36:06,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 21:36:06,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 21:36:06,679 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 21:36:06,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 21:36:06,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 21:36:06,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 21:36:06,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 21:36:06,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 21:36:06,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 21:36:06,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 21:36:06,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 21:36:06,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 21:36:06,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 21:36:06,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 21:36:06,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 21:36:06,681 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 21:36:06,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 21:36:06,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 21:36:06,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 21:36:06,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 21:36:06,682 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 21:36:06,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 21:36:06,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 21:36:06,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 21:36:06,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 21:36:06,997 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 21:36:06,999 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 21:36:07,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl [2021-06-13 21:36:07,001 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_16.bpl' [2021-06-13 21:36:07,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 21:36:07,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 21:36:07,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 21:36:07,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 21:36:07,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 21:36:07,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 21:36:07,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 21:36:07,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 21:36:07,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 21:36:07,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/1) ... [2021-06-13 21:36:07,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 21:36:07,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 21:36:07,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 21:36:07,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 21:36:07,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (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 [2021-06-13 21:36:07,138 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2021-06-13 21:36:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2021-06-13 21:36:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2021-06-13 21:36:07,138 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_15 given in one single declaration [2021-06-13 21:36:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure set_15 [2021-06-13 21:36:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure set_15 [2021-06-13 21:36:07,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-13 21:36:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-13 21:36:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-13 21:36:07,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-13 21:36:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-13 21:36:07,139 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-13 21:36:07,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-13 21:36:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-13 21:36:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-13 21:36:07,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-13 21:36:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-13 21:36:07,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-13 21:36:07,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-13 21:36:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-13 21:36:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-13 21:36:07,141 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-06-13 21:36:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-06-13 21:36:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-06-13 21:36:07,141 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 21:36:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 21:36:07,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 21:36:07,142 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-06-13 21:36:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-06-13 21:36:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-06-13 21:36:07,142 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-13 21:36:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-13 21:36:07,142 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-13 21:36:07,143 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-06-13 21:36:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-06-13 21:36:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-06-13 21:36:07,143 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-13 21:36:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-13 21:36:07,143 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-13 21:36:07,143 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-06-13 21:36:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-06-13 21:36:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-06-13 21:36:07,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-13 21:36:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-13 21:36:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-13 21:36:07,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-06-13 21:36:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-06-13 21:36:07,144 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-06-13 21:36:07,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-06-13 21:36:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-06-13 21:36:07,145 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-06-13 21:36:07,146 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 21:36:07,336 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 21:36:07,336 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 21:36:07,338 INFO L202 PluginConnector]: Adding new model example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:36:07 BoogieIcfgContainer [2021-06-13 21:36:07,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 21:36:07,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 21:36:07,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 21:36:07,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 21:36:07,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:36:07" (1/2) ... [2021-06-13 21:36:07,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6625901e and model type example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 09:36:07, skipping insertion in model container [2021-06-13 21:36:07,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:36:07" (2/2) ... [2021-06-13 21:36:07,344 INFO L111 eAbstractionObserver]: Analyzing ICFG example_16.bpl [2021-06-13 21:36:07,365 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 21:36:07,365 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 21:36:07,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 21:36:07,366 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 21:36:07,672 INFO L149 ThreadInstanceAdder]: Constructed 256 joinOtherThreadTransitions. [2021-06-13 21:36:07,690 INFO L255 AbstractCegarLoop]: Starting to check reachability of 17 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) [2021-06-13 21:36:07,739 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 21:36:07,740 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 21:36:07,740 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 21:36:07,740 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 21:36:07,740 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 21:36:07,740 INFO L383 AbstractCegarLoop]: Difference is false Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 21:36:07,740 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 21:36:07,743 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 21:36:07,886 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:36:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:36:07,891 INFO L82 PathProgramCache]: Analyzing trace with hash -612451771, now seen corresponding path program 1 times [2021-06-13 21:36:07,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:36:07,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211531019] [2021-06-13 21:36:07,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:36:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:36:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:36:08,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:36:08,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211531019] [2021-06-13 21:36:08,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211531019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:36:08,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:36:08,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 21:36:08,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722844077] [2021-06-13 21:36:08,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:36:08,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:36:08,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:36:08,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:36:08,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,120 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:36:08,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-06-13 21:36:08,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 21:36:08,227 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:36:08,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:36:08,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1485573829, now seen corresponding path program 1 times [2021-06-13 21:36:08,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:36:08,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665556526] [2021-06-13 21:36:08,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:36:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:36:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:36:08,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:36:08,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665556526] [2021-06-13 21:36:08,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665556526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:36:08,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:36:08,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 21:36:08,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982832893] [2021-06-13 21:36:08,293 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:36:08,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:36:08,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:36:08,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:36:08,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,295 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:36:08,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-06-13 21:36:08,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 21:36:08,356 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:36:08,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:36:08,356 INFO L82 PathProgramCache]: Analyzing trace with hash 2090470673, now seen corresponding path program 1 times [2021-06-13 21:36:08,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:36:08,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409171524] [2021-06-13 21:36:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:36:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:36:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:36:08,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:36:08,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409171524] [2021-06-13 21:36:08,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409171524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:36:08,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:36:08,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 21:36:08,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443055917] [2021-06-13 21:36:08,422 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:36:08,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:36:08,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:36:08,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:36:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,423 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:36:08,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-06-13 21:36:08,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 21:36:08,483 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:36:08,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:36:08,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1189745461, now seen corresponding path program 1 times [2021-06-13 21:36:08,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:36:08,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546797792] [2021-06-13 21:36:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:36:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:36:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:36:08,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:36:08,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546797792] [2021-06-13 21:36:08,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546797792] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:36:08,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:36:08,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 21:36:08,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146896551] [2021-06-13 21:36:08,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 21:36:08,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:36:08,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 21:36:08,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 21:36:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,551 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:36:08,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-06-13 21:36:08,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:08,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 21:36:08,612 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-06-13 21:36:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 21:36:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1965188891, now seen corresponding path program 1 times [2021-06-13 21:36:08,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 21:36:08,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183597333] [2021-06-13 21:36:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 21:36:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 21:36:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 21:36:09,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 21:36:09,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183597333] [2021-06-13 21:36:09,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183597333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 21:36:09,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 21:36:09,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-13 21:36:09,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880839799] [2021-06-13 21:36:09,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 21:36:09,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 21:36:09,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 21:36:09,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2021-06-13 21:36:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 21:36:09,916 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 21:36:09,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 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) [2021-06-13 21:36:09,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:09,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:09,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:09,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 21:36:09,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.