/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 19:49:23,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 19:49:23,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 19:49:23,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 19:49:23,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 19:49:23,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 19:49:23,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 19:49:23,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 19:49:23,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 19:49:23,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 19:49:23,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 19:49:23,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 19:49:23,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 19:49:23,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 19:49:23,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 19:49:23,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 19:49:23,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 19:49:23,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 19:49:23,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 19:49:23,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 19:49:23,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 19:49:23,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 19:49:23,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 19:49:23,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 19:49:23,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 19:49:23,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 19:49:23,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 19:49:23,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 19:49:23,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 19:49:23,228 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 19:49:23,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 19:49:23,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 19:49:23,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 19:49:23,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 19:49:23,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 19:49:23,230 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 19:49:23,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 19:49:23,231 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 19:49:23,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 19:49:23,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 19:49:23,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 19:49:23,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 19:49:23,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 19:49:23,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 19:49:23,232 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 19:49:23,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 19:49:23,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 19:49:23,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 19:49:23,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 19:49:23,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 19:49:23,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 19:49:23,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 19:49:23,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:49:23,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 19:49:23,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 19:49:23,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 19:49:23,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 19:49:23,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 19:49:23,234 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 19:49:23,234 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 19:49:23,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 19:49:23,235 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 19:49:23,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 19:49:23,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 19:49:23,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 19:49:23,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 19:49:23,458 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 19:49:23,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-03-15 19:49:23,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1811af1/1745b4a202974ea4913ea2130a7e3ed8/FLAG7a6dbd199 [2022-03-15 19:49:23,925 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 19:49:23,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-03-15 19:49:23,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1811af1/1745b4a202974ea4913ea2130a7e3ed8/FLAG7a6dbd199 [2022-03-15 19:49:23,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1811af1/1745b4a202974ea4913ea2130a7e3ed8 [2022-03-15 19:49:23,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 19:49:23,944 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 19:49:23,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 19:49:23,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 19:49:23,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 19:49:23,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:49:23" (1/1) ... [2022-03-15 19:49:23,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7b395a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:23, skipping insertion in model container [2022-03-15 19:49:23,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:49:23" (1/1) ... [2022-03-15 19:49:23,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 19:49:23,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 19:49:24,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3046,3059] [2022-03-15 19:49:24,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:49:24,256 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 19:49:24,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3046,3059] [2022-03-15 19:49:24,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:49:24,306 INFO L208 MainTranslator]: Completed translation [2022-03-15 19:49:24,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24 WrapperNode [2022-03-15 19:49:24,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 19:49:24,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 19:49:24,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 19:49:24,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 19:49:24,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,338 INFO L137 Inliner]: procedures = 21, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2022-03-15 19:49:24,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 19:49:24,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 19:49:24,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 19:49:24,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 19:49:24,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 19:49:24,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 19:49:24,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 19:49:24,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 19:49:24,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (1/1) ... [2022-03-15 19:49:24,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:49:24,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:24,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 19:49:24,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 19:49:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 19:49:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 19:49:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 19:49:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 19:49:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 19:49:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 19:49:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 19:49:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 19:49:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 19:49:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 19:49:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 19:49:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 19:49:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 19:49:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 19:49:24,429 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 19:49:24,489 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 19:49:24,490 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 19:49:24,648 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 19:49:24,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 19:49:24,696 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 19:49:24,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:49:24 BoogieIcfgContainer [2022-03-15 19:49:24,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 19:49:24,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 19:49:24,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 19:49:24,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 19:49:24,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 07:49:23" (1/3) ... [2022-03-15 19:49:24,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b5f185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:49:24, skipping insertion in model container [2022-03-15 19:49:24,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:24" (2/3) ... [2022-03-15 19:49:24,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b5f185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:49:24, skipping insertion in model container [2022-03-15 19:49:24,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:49:24" (3/3) ... [2022-03-15 19:49:24,710 INFO L111 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2022-03-15 19:49:24,719 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 19:49:24,719 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 19:49:24,720 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 19:49:24,720 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 19:49:24,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,811 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,812 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,812 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,812 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:24,818 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 19:49:24,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 19:49:24,858 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 19:49:24,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 19:49:24,872 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 19:49:24,880 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 182 flow [2022-03-15 19:49:24,882 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 83 transitions, 182 flow [2022-03-15 19:49:24,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 182 flow [2022-03-15 19:49:24,923 INFO L129 PetriNetUnfolder]: 1/81 cut-off events. [2022-03-15 19:49:24,924 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-03-15 19:49:24,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 81 events. 1/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2022-03-15 19:49:24,928 INFO L116 LiptonReduction]: Number of co-enabled transitions 572 [2022-03-15 19:49:26,717 INFO L131 LiptonReduction]: Checked pairs total: 3624 [2022-03-15 19:49:26,718 INFO L133 LiptonReduction]: Total number of compositions: 56 [2022-03-15 19:49:26,724 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 30 transitions, 76 flow [2022-03-15 19:49:26,764 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 244 states, 243 states have (on average 2.2222222222222223) internal successors, (540), 243 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:26,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 243 states have (on average 2.2222222222222223) internal successors, (540), 243 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:26,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 19:49:26,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:26,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:26,779 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:26,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:26,784 INFO L85 PathProgramCache]: Analyzing trace with hash 963387544, now seen corresponding path program 1 times [2022-03-15 19:49:26,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:26,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556375329] [2022-03-15 19:49:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:27,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:27,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556375329] [2022-03-15 19:49:27,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556375329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:27,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:27,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:49:27,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1946684341] [2022-03-15 19:49:27,143 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:27,151 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:27,194 INFO L252 McrAutomatonBuilder]: Finished intersection with 90 states and 155 transitions. [2022-03-15 19:49:27,194 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:27,946 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:49:27,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 19:49:27,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:27,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 19:49:27,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:49:27,967 INFO L87 Difference]: Start difference. First operand has 244 states, 243 states have (on average 2.2222222222222223) internal successors, (540), 243 states have internal predecessors, (540), 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) Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:28,121 INFO L93 Difference]: Finished difference Result 295 states and 619 transitions. [2022-03-15 19:49:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 19:49:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-03-15 19:49:28,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:28,135 INFO L225 Difference]: With dead ends: 295 [2022-03-15 19:49:28,136 INFO L226 Difference]: Without dead ends: 230 [2022-03-15 19:49:28,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-15 19:49:28,142 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:28,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 53 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:28,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-03-15 19:49:28,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 198. [2022-03-15 19:49:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 2.203045685279188) internal successors, (434), 197 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:28,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 434 transitions. [2022-03-15 19:49:28,204 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 434 transitions. Word has length 27 [2022-03-15 19:49:28,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:28,208 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 434 transitions. [2022-03-15 19:49:28,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:28,208 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 434 transitions. [2022-03-15 19:49:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 19:49:28,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:28,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:28,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 19:49:28,210 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:28,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:28,211 INFO L85 PathProgramCache]: Analyzing trace with hash -553456480, now seen corresponding path program 2 times [2022-03-15 19:49:28,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:28,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056484021] [2022-03-15 19:49:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:28,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:28,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:28,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056484021] [2022-03-15 19:49:28,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056484021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:28,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:28,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 19:49:28,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1527767278] [2022-03-15 19:49:28,339 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:28,343 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:28,354 INFO L252 McrAutomatonBuilder]: Finished intersection with 90 states and 158 transitions. [2022-03-15 19:49:28,354 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:28,911 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [1294#(or (<= 1 ~n1~0) (not (<= ~n1~0 ~n2~0))), 1295#(or (<= 0 ~tmp1~0) (not (<= (+ ~tmp1~0 1) ~n2~0))), 1293#(and (or (<= 1 ~n1~0) (not (<= ~n1~0 ~n2~0))) (or (not (<= ~n1~0 ~n2~0)) (<= ~n1~0 ~tmp2~0)) (or (not (= ~n2~0 0)) (<= ~n1~0 ~tmp2~0)))] [2022-03-15 19:49:28,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 19:49:28,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:28,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 19:49:28,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-15 19:49:28,913 INFO L87 Difference]: Start difference. First operand 198 states and 434 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:29,111 INFO L93 Difference]: Finished difference Result 348 states and 747 transitions. [2022-03-15 19:49:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 19:49:29,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) Word has length 27 [2022-03-15 19:49:29,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:29,114 INFO L225 Difference]: With dead ends: 348 [2022-03-15 19:49:29,114 INFO L226 Difference]: Without dead ends: 278 [2022-03-15 19:49:29,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 10 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:49:29,116 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 135 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:29,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 95 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:29,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-15 19:49:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 168. [2022-03-15 19:49:29,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 2.179640718562874) internal successors, (364), 167 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:29,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 364 transitions. [2022-03-15 19:49:29,125 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 364 transitions. Word has length 27 [2022-03-15 19:49:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:29,125 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 364 transitions. [2022-03-15 19:49:29,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 364 transitions. [2022-03-15 19:49:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 19:49:29,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:29,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:29,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 19:49:29,128 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash -793131516, now seen corresponding path program 3 times [2022-03-15 19:49:29,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:29,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57342858] [2022-03-15 19:49:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:29,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:29,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:29,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57342858] [2022-03-15 19:49:29,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57342858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:29,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:29,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:49:29,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [28468906] [2022-03-15 19:49:29,174 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:29,176 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:29,185 INFO L252 McrAutomatonBuilder]: Finished intersection with 80 states and 138 transitions. [2022-03-15 19:49:29,185 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:29,363 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2007#(not (= (mod ~e2~0 256) 0))] [2022-03-15 19:49:29,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 19:49:29,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 19:49:29,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:49:29,364 INFO L87 Difference]: Start difference. First operand 168 states and 364 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:29,387 INFO L93 Difference]: Finished difference Result 156 states and 334 transitions. [2022-03-15 19:49:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 19:49:29,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) Word has length 27 [2022-03-15 19:49:29,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:29,389 INFO L225 Difference]: With dead ends: 156 [2022-03-15 19:49:29,389 INFO L226 Difference]: Without dead ends: 156 [2022-03-15 19:49:29,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:49:29,392 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:29,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 22 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:49:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-03-15 19:49:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-03-15 19:49:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 2.1548387096774193) internal successors, (334), 155 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 334 transitions. [2022-03-15 19:49:29,409 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 334 transitions. Word has length 27 [2022-03-15 19:49:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:29,410 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 334 transitions. [2022-03-15 19:49:29,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 334 transitions. [2022-03-15 19:49:29,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 19:49:29,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:29,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:29,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 19:49:29,413 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:29,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:29,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1511050794, now seen corresponding path program 4 times [2022-03-15 19:49:29,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:29,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463606742] [2022-03-15 19:49:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:29,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:29,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:29,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463606742] [2022-03-15 19:49:29,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463606742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:29,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:29,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 19:49:29,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1759281294] [2022-03-15 19:49:29,549 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:29,551 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:29,561 INFO L252 McrAutomatonBuilder]: Finished intersection with 96 states and 178 transitions. [2022-03-15 19:49:29,561 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:30,226 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [2486#(and (or (not (<= ~n1~0 ~n2~0)) (not (= ~n1~0 0))) (or (not (< ~n2~0 ~n1~0)) (not (= ~n2~0 0)))), 2484#(and (= ~tmp2~0 0) (= ~n2~0 0)), 2483#(and (not (= (+ ~tmp1~0 1) 0)) (<= (+ ~tmp1~0 1) ~n2~0)), 2485#(and (not (<= ~n1~0 ~n2~0)) (not (= ~n2~0 0)))] [2022-03-15 19:49:30,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 19:49:30,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:30,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 19:49:30,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 19:49:30,228 INFO L87 Difference]: Start difference. First operand 156 states and 334 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:30,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:30,370 INFO L93 Difference]: Finished difference Result 254 states and 531 transitions. [2022-03-15 19:49:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:49:30,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 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) Word has length 27 [2022-03-15 19:49:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:30,372 INFO L225 Difference]: With dead ends: 254 [2022-03-15 19:49:30,372 INFO L226 Difference]: Without dead ends: 226 [2022-03-15 19:49:30,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-03-15 19:49:30,374 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 107 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:30,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 92 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:30,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-15 19:49:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 158. [2022-03-15 19:49:30,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 2.121019108280255) internal successors, (333), 157 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 333 transitions. [2022-03-15 19:49:30,380 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 333 transitions. Word has length 27 [2022-03-15 19:49:30,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:30,380 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 333 transitions. [2022-03-15 19:49:30,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 333 transitions. [2022-03-15 19:49:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 19:49:30,381 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:30,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:30,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 19:49:30,382 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:30,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:30,383 INFO L85 PathProgramCache]: Analyzing trace with hash -971200926, now seen corresponding path program 5 times [2022-03-15 19:49:30,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:30,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308127068] [2022-03-15 19:49:30,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:30,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:30,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:30,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308127068] [2022-03-15 19:49:30,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308127068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:30,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:30,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:49:30,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [403055206] [2022-03-15 19:49:30,420 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:30,423 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:30,431 INFO L252 McrAutomatonBuilder]: Finished intersection with 76 states and 136 transitions. [2022-03-15 19:49:30,431 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:30,602 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:49:30,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 19:49:30,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:30,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 19:49:30,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:49:30,603 INFO L87 Difference]: Start difference. First operand 158 states and 333 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:30,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:30,624 INFO L93 Difference]: Finished difference Result 156 states and 322 transitions. [2022-03-15 19:49:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 19:49:30,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) Word has length 27 [2022-03-15 19:49:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:30,626 INFO L225 Difference]: With dead ends: 156 [2022-03-15 19:49:30,626 INFO L226 Difference]: Without dead ends: 144 [2022-03-15 19:49:30,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 11 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:49:30,627 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:30,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:49:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-03-15 19:49:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-03-15 19:49:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 2.090909090909091) internal successors, (299), 143 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 299 transitions. [2022-03-15 19:49:30,631 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 299 transitions. Word has length 27 [2022-03-15 19:49:30,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:30,631 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 299 transitions. [2022-03-15 19:49:30,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:30,631 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 299 transitions. [2022-03-15 19:49:30,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 19:49:30,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:30,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:30,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 19:49:30,632 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1255981102, now seen corresponding path program 6 times [2022-03-15 19:49:30,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:30,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531548831] [2022-03-15 19:49:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:30,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:30,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:30,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531548831] [2022-03-15 19:49:30,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531548831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:30,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:30,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 19:49:30,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2097591867] [2022-03-15 19:49:30,691 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:30,694 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:30,702 INFO L252 McrAutomatonBuilder]: Finished intersection with 92 states and 169 transitions. [2022-03-15 19:49:30,702 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:31,107 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3519#(and (not (<= ~n1~0 ~n2~0)) (not (= ~n2~0 0)))] [2022-03-15 19:49:31,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 19:49:31,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:31,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 19:49:31,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 19:49:31,108 INFO L87 Difference]: Start difference. First operand 144 states and 299 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 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) [2022-03-15 19:49:31,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:31,190 INFO L93 Difference]: Finished difference Result 112 states and 221 transitions. [2022-03-15 19:49:31,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 19:49:31,191 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 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) Word has length 27 [2022-03-15 19:49:31,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:31,191 INFO L225 Difference]: With dead ends: 112 [2022-03-15 19:49:31,192 INFO L226 Difference]: Without dead ends: 112 [2022-03-15 19:49:31,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-15 19:49:31,195 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 65 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:31,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 60 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-03-15 19:49:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-03-15 19:49:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.990990990990991) internal successors, (221), 111 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 221 transitions. [2022-03-15 19:49:31,199 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 221 transitions. Word has length 27 [2022-03-15 19:49:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:31,200 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 221 transitions. [2022-03-15 19:49:31,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 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) [2022-03-15 19:49:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 221 transitions. [2022-03-15 19:49:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 19:49:31,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:31,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:31,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 19:49:31,202 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1159454924, now seen corresponding path program 7 times [2022-03-15 19:49:31,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:31,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622849075] [2022-03-15 19:49:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:31,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:31,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:31,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622849075] [2022-03-15 19:49:31,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622849075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:31,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:31,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:49:31,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [440213947] [2022-03-15 19:49:31,293 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:31,296 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:31,318 INFO L252 McrAutomatonBuilder]: Finished intersection with 72 states and 127 transitions. [2022-03-15 19:49:31,318 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:31,564 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:49:31,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 19:49:31,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:31,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 19:49:31,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:49:31,565 INFO L87 Difference]: Start difference. First operand 112 states and 221 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:31,635 INFO L93 Difference]: Finished difference Result 111 states and 220 transitions. [2022-03-15 19:49:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:49:31,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) Word has length 27 [2022-03-15 19:49:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:31,636 INFO L225 Difference]: With dead ends: 111 [2022-03-15 19:49:31,636 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 19:49:31,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-15 19:49:31,637 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 33 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:31,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 48 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:49:31,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 19:49:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 19:49:31,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:31,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 19:49:31,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2022-03-15 19:49:31,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:31,639 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 19:49:31,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 19:49:31,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 19:49:31,641 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 19:49:31,642 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 19:49:31,642 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 19:49:31,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 19:49:31,644 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-15 19:49:31,646 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 19:49:31,646 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 19:49:31,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 07:49:31 BasicIcfg [2022-03-15 19:49:31,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 19:49:31,648 INFO L158 Benchmark]: Toolchain (without parser) took 7704.94ms. Allocated memory was 195.0MB in the beginning and 358.6MB in the end (delta: 163.6MB). Free memory was 139.1MB in the beginning and 274.9MB in the end (delta: -135.8MB). Peak memory consumption was 28.6MB. Max. memory is 8.0GB. [2022-03-15 19:49:31,649 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:49:31,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.40ms. Allocated memory was 195.0MB in the beginning and 280.0MB in the end (delta: 84.9MB). Free memory was 139.0MB in the beginning and 250.3MB in the end (delta: -111.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-03-15 19:49:31,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.11ms. Allocated memory is still 280.0MB. Free memory was 250.3MB in the beginning and 248.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:49:31,650 INFO L158 Benchmark]: Boogie Preprocessor took 17.44ms. Allocated memory is still 280.0MB. Free memory was 248.7MB in the beginning and 247.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 19:49:31,650 INFO L158 Benchmark]: RCFGBuilder took 340.63ms. Allocated memory is still 280.0MB. Free memory was 247.3MB in the beginning and 233.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-03-15 19:49:31,650 INFO L158 Benchmark]: TraceAbstraction took 6946.87ms. Allocated memory was 280.0MB in the beginning and 358.6MB in the end (delta: 78.6MB). Free memory was 232.6MB in the beginning and 274.9MB in the end (delta: -42.3MB). Peak memory consumption was 37.6MB. Max. memory is 8.0GB. [2022-03-15 19:49:31,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 356.40ms. Allocated memory was 195.0MB in the beginning and 280.0MB in the end (delta: 84.9MB). Free memory was 139.0MB in the beginning and 250.3MB in the end (delta: -111.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.11ms. Allocated memory is still 280.0MB. Free memory was 250.3MB in the beginning and 248.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.44ms. Allocated memory is still 280.0MB. Free memory was 248.7MB in the beginning and 247.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 340.63ms. Allocated memory is still 280.0MB. Free memory was 247.3MB in the beginning and 233.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 6946.87ms. Allocated memory was 280.0MB in the beginning and 358.6MB in the end (delta: 78.6MB). Free memory was 232.6MB in the beginning and 274.9MB in the end (delta: -42.3MB). Peak memory consumption was 37.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 89 PlacesBefore, 37 PlacesAfterwards, 83 TransitionsBefore, 30 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 3624 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1950, positive: 1716, positive conditional: 0, positive unconditional: 1716, negative: 234, negative conditional: 0, negative unconditional: 234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 280, positive: 265, positive conditional: 0, positive unconditional: 265, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1950, positive: 1451, positive conditional: 0, positive unconditional: 1451, negative: 219, negative conditional: 0, negative unconditional: 219, unknown: 280, unknown conditional: 0, unknown unconditional: 280] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 116]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 109 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 406 mSDsluCounter, 396 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 683 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 801 IncrementalHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 106 mSDtfsCounter, 801 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 342 SyntacticMatches, 40 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 210 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 19:49:31,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...