/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-20 00:13:49,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-20 00:13:49,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-20 00:13:49,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-20 00:13:49,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-20 00:13:49,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-20 00:13:49,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-20 00:13:49,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-20 00:13:49,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-20 00:13:49,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-20 00:13:49,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-20 00:13:49,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-20 00:13:49,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-20 00:13:49,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-20 00:13:49,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-20 00:13:49,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-20 00:13:49,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-20 00:13:49,203 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-Sleep-NoLbe-New_States.epf [2021-02-20 00:13:49,237 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-20 00:13:49,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-20 00:13:49,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-20 00:13:49,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-20 00:13:49,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-20 00:13:49,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-20 00:13:49,239 INFO L138 SettingsManager]: * Use SBE=true [2021-02-20 00:13:49,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-20 00:13:49,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-20 00:13:49,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-20 00:13:49,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-20 00:13:49,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-20 00:13:49,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-20 00:13:49,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-20 00:13:49,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-20 00:13:49,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-20 00:13:49,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-20 00:13:49,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-20 00:13:49,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-20 00:13:49,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-20 00:13:49,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-20 00:13:49,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-20 00:13:49,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-20 00:13:49,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-20 00:13:49,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-20 00:13:49,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-20 00:13:49,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-20 00:13:49,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-20 00:13:49,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-20 00:13:49,242 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-20 00:13:49,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-20 00:13:49,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-20 00:13:49,243 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-02-20 00:13:49,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-20 00:13:49,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-20 00:13:49,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-20 00:13:49,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-20 00:13:49,575 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-20 00:13:49,576 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-20 00:13:49,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-subst.wvr.bpl [2021-02-20 00:13:49,577 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-subst.wvr.bpl' [2021-02-20 00:13:49,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-20 00:13:49,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-20 00:13:49,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-20 00:13:49,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-20 00:13:49,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-20 00:13:49,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-20 00:13:49,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-20 00:13:49,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-20 00:13:49,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-20 00:13:49,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/1) ... [2021-02-20 00:13:49,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-20 00:13:49,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-20 00:13:49,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-20 00:13:49,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-20 00:13:49,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (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 [2021-02-20 00:13:49,813 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-20 00:13:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-20 00:13:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-20 00:13:49,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-20 00:13:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-20 00:13:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-20 00:13:49,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-20 00:13:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-20 00:13:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-20 00:13:49,814 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-20 00:13:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-20 00:13:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-20 00:13:49,828 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-20 00:13:50,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-20 00:13:50,596 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-02-20 00:13:50,597 INFO L202 PluginConnector]: Adding new model poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:13:50 BoogieIcfgContainer [2021-02-20 00:13:50,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-20 00:13:50,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-20 00:13:50,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-20 00:13:50,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-20 00:13:50,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:49" (1/2) ... [2021-02-20 00:13:50,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b20219 and model type poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:13:50, skipping insertion in model container [2021-02-20 00:13:50,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:13:50" (2/2) ... [2021-02-20 00:13:50,604 INFO L111 eAbstractionObserver]: Analyzing ICFG poker-hand-subst.wvr.bpl [2021-02-20 00:13:50,609 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-20 00:13:50,609 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-20 00:13:50,613 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-20 00:13:50,613 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-20 00:13:50,643 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-20 00:13:50,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-02-20 00:13:50,695 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-20 00:13:50,695 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-20 00:13:50,695 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-20 00:13:50,695 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-20 00:13:50,695 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-20 00:13:50,696 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-20 00:13:50,696 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-20 00:13:50,696 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-20 00:13:50,730 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:50,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:50,736 INFO L82 PathProgramCache]: Analyzing trace with hash -827935377, now seen corresponding path program 1 times [2021-02-20 00:13:50,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:50,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466644246] [2021-02-20 00:13:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:50,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:50,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466644246] [2021-02-20 00:13:50,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 00:13:50,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-20 00:13:50,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808371958] [2021-02-20 00:13:50,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 00:13:50,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:50,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 00:13:50,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-20 00:13:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:50,905 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:50,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-02-20 00:13:50,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-20 00:13:51,058 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:51,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:51,059 INFO L82 PathProgramCache]: Analyzing trace with hash 944480361, now seen corresponding path program 1 times [2021-02-20 00:13:51,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:51,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20163344] [2021-02-20 00:13:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 00:13:51,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20163344] [2021-02-20 00:13:51,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 00:13:51,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-20 00:13:51,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389918225] [2021-02-20 00:13:51,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 00:13:51,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:51,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 00:13:51,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-20 00:13:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:51,125 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:51,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-02-20 00:13:51,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:51,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-20 00:13:51,145 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:51,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:51,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1719616983, now seen corresponding path program 1 times [2021-02-20 00:13:51,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:51,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189787399] [2021-02-20 00:13:51,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:51,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 00:13:51,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189787399] [2021-02-20 00:13:51,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093987551] [2021-02-20 00:13:51,210 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 [2021-02-20 00:13:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:51,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-20 00:13:51,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-20 00:13:51,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-02-20 00:13:51,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-02-20 00:13:51,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856890156] [2021-02-20 00:13:51,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 00:13:51,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:51,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 00:13:51,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-20 00:13:51,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:51,354 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:51,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-02-20 00:13:51,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:51,614 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:51,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:51,614 INFO L82 PathProgramCache]: Analyzing trace with hash 517946927, now seen corresponding path program 1 times [2021-02-20 00:13:51,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:51,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854935959] [2021-02-20 00:13:51,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:52,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854935959] [2021-02-20 00:13:52,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131266045] [2021-02-20 00:13:52,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-02-20 00:13:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:52,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 33 conjunts are in the unsatisfiable core [2021-02-20 00:13:52,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:52,211 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-02-20 00:13:52,808 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-20 00:13:53,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:53,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:53,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-02-20 00:13:53,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734767716] [2021-02-20 00:13:53,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-20 00:13:53,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:53,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-20 00:13:53,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-02-20 00:13:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:53,146 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:53,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 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) [2021-02-20 00:13:53,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:53,620 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2021-02-20 00:13:53,804 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2021-02-20 00:13:54,015 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-02-20 00:13:54,207 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-02-20 00:13:54,518 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-02-20 00:13:54,929 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2021-02-20 00:13:55,150 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2021-02-20 00:13:55,382 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-02-20 00:13:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:55,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:55,662 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:55,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:55,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1057262505, now seen corresponding path program 2 times [2021-02-20 00:13:55,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:55,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780943617] [2021-02-20 00:13:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-20 00:13:55,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780943617] [2021-02-20 00:13:55,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583809575] [2021-02-20 00:13:55,844 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 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 [2021-02-20 00:13:55,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 00:13:55,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:55,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-20 00:13:55,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:56,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-20 00:13:56,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:56,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2021-02-20 00:13:56,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407280798] [2021-02-20 00:13:56,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-20 00:13:56,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:56,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-20 00:13:56,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-02-20 00:13:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:56,209 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:56,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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) [2021-02-20 00:13:56,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:56,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:56,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:56,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:56,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:57,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:57,035 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:57,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:57,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1609262901, now seen corresponding path program 1 times [2021-02-20 00:13:57,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:57,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867650833] [2021-02-20 00:13:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 00:13:57,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867650833] [2021-02-20 00:13:57,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436378693] [2021-02-20 00:13:57,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-02-20 00:13:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:57,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-20 00:13:57,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:57,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-20 00:13:57,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-02-20 00:13:57,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-02-20 00:13:57,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650464061] [2021-02-20 00:13:57,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 00:13:57,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:57,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 00:13:57,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-20 00:13:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:57,136 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:57,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-02-20 00:13:57,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:57,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-02-20 00:13:57,373 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:57,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:57,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1179153454, now seen corresponding path program 1 times [2021-02-20 00:13:57,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:57,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753065143] [2021-02-20 00:13:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:57,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-20 00:13:57,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753065143] [2021-02-20 00:13:57,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 00:13:57,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-20 00:13:57,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753756278] [2021-02-20 00:13:57,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 00:13:57,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:57,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 00:13:57,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-20 00:13:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:57,405 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:57,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-02-20 00:13:57,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:57,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:57,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:57,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:57,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-20 00:13:57,444 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:57,445 INFO L82 PathProgramCache]: Analyzing trace with hash -237664078, now seen corresponding path program 1 times [2021-02-20 00:13:57,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:57,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662491447] [2021-02-20 00:13:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-20 00:13:57,464 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-20 00:13:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-20 00:13:57,484 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-20 00:13:57,503 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-20 00:13:57,504 INFO L607 BasicCegarLoop]: Counterexample might be feasible [2021-02-20 00:13:57,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-02-20 00:13:57,522 INFO L202 PluginConnector]: Adding new model poker-hand-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 12:13:57 BasicIcfg [2021-02-20 00:13:57,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-20 00:13:57,523 INFO L168 Benchmark]: Toolchain (without parser) took 7902.24 ms. Allocated memory was 255.9 MB in the beginning and 402.7 MB in the end (delta: 146.8 MB). Free memory was 235.1 MB in the beginning and 209.6 MB in the end (delta: 25.5 MB). Peak memory consumption was 172.1 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:57,523 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:13:57,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.74 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 232.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:57,523 INFO L168 Benchmark]: Boogie Preprocessor took 56.05 ms. Allocated memory is still 255.9 MB. Free memory was 232.8 MB in the beginning and 230.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:57,523 INFO L168 Benchmark]: RCFGBuilder took 867.91 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 230.7 MB in the beginning and 305.4 MB in the end (delta: -74.7 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:57,523 INFO L168 Benchmark]: TraceAbstraction took 6923.04 ms. Allocated memory was 335.5 MB in the beginning and 402.7 MB in the end (delta: 67.1 MB). Free memory was 305.4 MB in the beginning and 209.6 MB in the end (delta: 95.9 MB). Peak memory consumption was 162.7 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:57,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.74 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 232.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 56.05 ms. Allocated memory is still 255.9 MB. Free memory was 232.8 MB in the beginning and 230.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 867.91 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 230.7 MB in the beginning and 305.4 MB in the end (delta: -74.7 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6923.04 ms. Allocated memory was 335.5 MB in the beginning and 402.7 MB in the end (delta: 67.1 MB). Free memory was 305.4 MB in the beginning and 209.6 MB in the end (delta: 95.9 MB). Peak memory consumption was 162.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 298]: assertion can be violated assertion can be violated We found a FailurePath: [L291] FORK 0 fork 1 thread1(); [L41] 1 assume (index_of_0[4] != 0 - 1 || index_of_4[4] != 0 - 1) && index_of_0[4] == index_of_4[4]; [L42] 1 i1_13 := 0; [L43] 1 break_14 := false; VAL [break_14=false, i1_13=0] [L47] 1 assume !break_14 && i1_13 <= 12; [L48] 1 result_12 := (if char_at_1[i1_13] != 0 && char_at_1[i1_13] != 4 && char_at_5[i1_13] != 0 && char_at_5[i1_13] != 4 then 0 else (if char_at_1[i1_13] != 0 && char_at_1[i1_13] != 4 then 0 - 1 else (if char_at_5[i1_13] != 0 && char_at_5[i1_13] != 4 then 1 else result_12))); [L49] 1 break_14 := (if (char_at_1[i1_13] != 0 && char_at_1[i1_13] != 4) || (char_at_5[i1_13] != 0 && char_at_5[i1_13] != 4) then true else break_14); [L50] 1 i1_13 := i1_13 + 1; VAL [break_14=true, i1_13=1, result_12=0] [L54] 1 assume !(!break_14 && i1_13 <= 12); [L55] 1 result_12 := (if !break_14 then index_of_0[4] - index_of_4[4] else result_12); VAL [break_14=true, i1_13=1, result_12=0] [L292] FORK 0 fork 2, 2 thread2(); VAL [break_14=true, i1_13=1, result_12=0] [L125] 2 assume (index_of_0[4] != 0 - 1 || index_of_8[4] != 0 - 1) && index_of_0[4] == index_of_8[4]; [L126] 2 i1_18 := 0; [L127] 2 break_19 := false; VAL [break_14=true, break_19=false, i1_13=1, i1_18=0, result_12=0] [L131] 2 assume !break_19 && i1_18 <= 12; [L132] 2 result_17 := (if char_at_1[i1_18] != 0 && char_at_1[i1_18] != 4 && char_at_9[i1_18] != 0 && char_at_9[i1_18] != 4 then 0 else (if char_at_1[i1_18] != 0 && char_at_1[i1_18] != 4 then 0 - 1 else (if char_at_9[i1_18] != 0 && char_at_9[i1_18] != 4 then 1 else result_17))); [L133] 2 break_19 := (if (char_at_1[i1_18] != 0 && char_at_1[i1_18] != 4) || (char_at_9[i1_18] != 0 && char_at_9[i1_18] != 4) then true else break_19); [L134] 2 i1_18 := i1_18 + 1; VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0] [L138] 2 assume !(!break_19 && i1_18 <= 12); [L139] 2 result_17 := (if !break_19 then index_of_0[4] - index_of_8[4] else result_17); VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0] [L293] FORK 0 fork 3, 3, 3 thread3(); VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0, result_22=1] [L294] JOIN 1 join 1; VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0, result_22=1] [L295] JOIN 2 join 2, 2; VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0, result_22=1] [L296] JOIN 3 join 3, 3, 3; VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0, result_22=1] [L297] 0 assume !(result_12 == 0 ==> (result_17 > 0) == (result_22 > 0) && (result_17 < 0) == (result_22 < 0)); VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0, result_22=1] [L298] 0 assert false; VAL [break_14=true, break_19=true, i1_13=1, i1_18=1, result_12=0, result_17=0, result_22=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.8s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 61726 SizeOfPredicates, 22 NumberOfNonLiveVariables, 336 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 26/42 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...